Microcontrollers

Products (20,000+)

ATXMEGA64A1-CUR - 32MHz 64KB AVR MCU | Microchip Technology (Tape & Reel)
ATXMEGA64A1-CUR

ATXMEGA64A1-CUR - 32MHz 64KB AVR MCU | Microchip Technology (Tape & Reel)

Microchip Technology ATXMEGA64A1-CUR is an 8/16-bit AVR XMEGA A1 microcontroller operating at 32 MHz, with 64 KB of self-programming Flash memory, 4 KB SRAM and 2 KB EEPROM in a 100-CBGA package measuring 9 mm by 9 mm. The device operates from a 1.6 V to 3.6 V supply and provides 34 I/O ports. Its integrated peripherals include a direct memory access controller, PWM channels, brown-out detection and reset, power-on reset and a watchdog timer. The MCU is intended for low-power, high-performance embedded designs that require substantial Flash storage, rapid peripheral access and a compact surface-mount package. According to Microchip, the ATxmega64A1 family is not recommended for new designs and Microchip identifies ATxmega64A1U as its preferred successor. An 8/16-bit AVR microcontroller is a compact embedded-processing device that combines a processor core, nonvolatile program memory, volatile working memory, communication peripherals and mixed-signal or timing functions on one integrated circuit. In the product hierarchy, the ATXMEGA64A1-CUR is an MCU, part of the broader integrated-circuit and embedded-processing categories. Its XMEGA architecture supports 8-bit and 16-bit instruction execution, making it useful where deterministic control, moderate arithmetic performance and low system complexity are more important than the application processor performance of a high-end Cortex-M device. The MCU's 32 MHz operating frequency is its principal performance figure, while its 64 KB Flash memory provides room for application code and boot code. The manufacturer product page also identifies a 4 KB boot-code section, 4 KB SRAM and 2 KB EEPROM. Brown-out detection, power-on reset and the watchdog timer support reliable startup and continued operation. Four-channel DMA reduces peripheral data-transfer overhead, while the PWM and external bus interface extend its usefulness for motor control, industrial automation and connected embedded equipment. The 1.6 V to 3.6 V operating range permits use with common low-voltage digital rails. The 100-CBGA package provides 100 ball-grid connections and a compact 9 mm by 9 mm footprint, but its fine-pitch ball array requires a PCB with high-quality routing and assembly capability. Unlike a simple microcontroller package, a CBGA also demands careful power-plane design, via-in-pad or equivalent escape-routing strategies, and assembly processes capable of handling the package's fine pitch. The manufacturer lists this family as not recommended for new designs, so lifecycle planning is essential. Typical applications include industrial automation controllers, compact motor-control systems, sensor-conditioning hubs, communication modules and low-power embedded products. The combination of DMA, PWM, 64 KB Flash and a 32 MHz clock is especially useful in cost-sensitive systems that need several concurrent control functions without using a higher-complexity processor. Because the part is not recommended for new designs, engineers should evaluate ATxmega64A1U before committing a new PCB to this package. The primary design consideration is package and lifecycle risk. ATXMEGA64A1-CUR can be maintained in an existing 100-CBGA design, but new products should verify recommended-device migration, pin compatibility, memory-map differences, toolchain support and long-term procurement before committing. The verified distributor data does not provide a complete ball assignment or exposed-pad connection, so the package drawing must be checked against the current Microchip documentation before PCB release. This page consolidates the verified manufacturer and distributor specifications, lifecycle guidance, pricing, package constraints and same-family migration information. It also distinguishes the legacy ATXMEGA64A1-CUR from the manufacturer-recommended ATxmega64A1U path and identifies which replacement decisions still require pin-level validation rather than relying on broad functional similarity.

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ATXMEGA64A3-AU - 64KB Flash AVR XMEGA A3 MCU 32MHz TQFP-64 | Microchip
ATXMEGA64A3-AU

ATXMEGA64A3-AU - 64KB Flash AVR XMEGA A3 MCU 32MHz TQFP-64 | Microchip

The Microchip Technology ATXMEGA64A3-AU is an 8/16-bit AVR XMEGA A3 microcontroller delivering 32 MIPS throughput at 32 MHz, with 64 KB of in-system programmable Flash, 4 KB SRAM, 2 KB EEPROM, and 4 KB boot code section, housed in a 64-pin TQFP (14x14 mm) package. It integrates a 4-channel DMA controller, an 8-channel event system, a programmable multi-level interrupt controller, and a 16-bit Real Time Counter (RTC). The device operates from 1.6 V to 3.6 V, making it suitable for both battery-powered and 3.3 V regulated rails. An AVR XMEGA microcontroller is a high-performance 8/16-bit RISC architecture that extends the classic AVR core with a wider instruction set, hardware multiplier, and rich on-chip peripherals. Within the broader taxonomy, the ATXMEGA64A3 belongs to the XMEGA A3 family, which is the general-purpose branch of the XMEGA line designed for low-power embedded control with deterministic interrupt handling and event-driven peripherals. The XMEGA core architecture (AVR -> 8-bit MCU -> microcontroller -> semiconductor) achieves 1 MIPS per MHz efficiency, so a 32 MHz clock produces 32 MIPS of compute, an attractive ratio for power-constrained designs. Key features include 50 general-purpose I/O lines, seven 16-bit Timer/Counters with PWM and compare modes, seven USARTs, two two-wire interfaces (TWI/I2C), two SPI peripherals, a 12-bit ADC and 12-bit DAC, a four-channel DMA controller, and a cryptographic AES/DES engine. The self-programmable Flash supports Read-While-Write, allowing firmware updates without halting application code execution, while the on-chip boot section enables secure bootloader-based field upgrades. The 64-pin TQFP (14x14 mm) is a mature surface-mount package with reliable manufacturability and good thermal performance for moderate-power designs. The 1.6 V minimum supply extends the part into single-cell Li-ion (nominally 3.7 V) and energy-harvesting applications, while the on-chip peripherals reduce external component count. The architecture's deterministic interrupt latency and peripheral event system make it particularly well suited to real-time control loops. Typical applications include industrial sensor hubs, building automation controllers, smart metering nodes, USB device bridges, HMI panels with TFT drives, and low-power wireless sensor nodes. Designers typically select this part when they need deterministic event handling, generous on-chip peripherals, and the flexibility of a self-programmable Flash with bootloader support, all at low supply voltage. When designing with this device, ensure that VDDCORE is properly decoupled and that PDI/PDO programming lines are accessible on the board for in-system programming. The XMEGA event system routes peripheral triggers without CPU intervention, so designers should map out event channels before committing to a final pinout. Peripherals not in use should be clock-gated via the PR register to minimize power draw in sleep modes. This page synthesizes distributor pricing, drop-in XMEGA A3 alternatives, package-aware comparison, and design notes not found in the standalone manufacturer datasheet.

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ATXMEGA64A3-MH - 32MHz 64KB AVR Microcontroller | Microchip
ATXMEGA64A3-MH

ATXMEGA64A3-MH - 32MHz 64KB AVR Microcontroller | Microchip

The Microchip Technology ATXMEGA64A3-MH is a low-power 8/16-bit AVR XMEGA A3 microcontroller with a 32 MHz clock, 64 KB of self-programming Flash memory, 4 KB SRAM, and 2 KB EEPROM in a 64-QFN (9 x 9 mm) package. It provides up to 32 MIPS throughput and operates from 1.6 V to 3.6 V. An AVR XMEGA microcontroller is an embedded semiconductor that combines a processor core, program and data memory, communication peripherals, timers, and event-management hardware in one device. The XMEGA A3 family sits within the broader hierarchy of 8/16-bit AVR microcontrollers, embedded controllers, and microcontrollers used for low-power control and signal-processing applications. The ATXMEGA64A3-MH includes 64 KB of Flash organized as 32K x 16, a separate 4 KB boot-code section, 4 KB SRAM, and 2 KB EEPROM. Its four-channel DMA controller and eight-channel event system allow data movement and event routing between peripherals without requiring every transfer to be handled directly by the CPU. At a maximum clock of 32 MHz, the device delivers up to 32 MIPS throughput. This processing capability, together with the 16-bit Flash organization and event-system architecture, supports responsive control loops and coordinated peripheral operations while maintaining the low-power characteristics associated with the AVR XMEGA family. Typical uses include industrial control, sensor acquisition, communication modules, low-power embedded systems, and compact control platforms. The 1.6 V to 3.6 V operating range makes the device suitable for low-voltage embedded systems, while 64 KB of Flash provides room for firmware, configuration data, and a boot section within one microcontroller. Designers should verify the complete 64-pin pinout, exposed-pad connection, clock configuration, decoupling requirements, and peripheral assignments against the manufacturer datasheet before layout. The 64-QFN footprint also requires careful thermal-via placement and PCB-land-pattern verification to maintain reliable heat transfer from the exposed pad. This page consolidates verified manufacturer and distributor information, separates the exact ATXMEGA64A3-MH characteristics from related family variants, and identifies which drop-in alternatives require firmware or peripheral review before substitution.

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ATXMEGA64A4U-AU - 64KB Flash 32 MIPS AVR XMEGA MCU | Microchip
ATXMEGA64A4U-AU

ATXMEGA64A4U-AU - 64KB Flash 32 MIPS AVR XMEGA MCU | Microchip

The Microchip Technology ATXMEGA64A4U-AU is a low-power, high-performance 8/16-bit AVR XMEGA A4U microcontroller delivering up to 32 MIPS throughput at 32 MHz, with 64 KB of self-programming Flash, 4 KB SRAM, 2 KB EEPROM and a 4 KB boot code section, housed in a 44-pin TQFP package rated for industrial temperature (-40C to +85C) operation from 1.6 V to 3.6 V. An AVR XMEGA microcontroller is a member of the 8/16-bit RISC microcontroller family that combines an enhanced Harvard architecture with rich on-chip peripherals such as DMA, an event system and a USB 2.0 Full-Speed controller. In the broader taxonomy it sits under MCU -> RISC microcontroller -> embedded controller -> semiconductor. The XMEGA series is engineered for deterministic, low-latency I/O handling at modest clock rates while keeping active and sleep current far below typical ARM Cortex-M parts. Key features include a 4-channel DMA controller, an 8-channel peripheral event system that lets peripherals trigger each other without CPU intervention, a hardware AES/DES crypto engine, a 12-bit 1 MSPS ADC, two 12-bit DACs and an integrated USB 2.0 Full-Speed device/host controller. The device also exposes an external bus interface for memory-mapped peripherals and provides up to 34 programmable I/O pins with configurable drive strength and slew-rate control. The A4U die is implemented on a low-leakage CMOS process, and the core supports 136 new instructions including hardware multiply, single-cycle GPIO access and atomic bit manipulation. The integrated peripheral event system routes peripheral-to-peripheral triggers across the device with deterministic sub-microsecond latency, allowing sensor data acquisition and PWM updates to occur while the core sleeps, dramatically lowering average power for battery-powered designs. Typical applications include USB human-interface devices such as keyboards, mice and game controllers, industrial sensor hubs, portable medical monitors, USB-to-UART bridge dongles, low-power IoT edge nodes and battery-backed data loggers. The wide 1.6 V to 3.6 V supply range is well suited to single-cell Li-ion and 2xAA chemistries. When designing with this part, place the 0.1 uF VCC decoupling caps adjacent to each power pin and follow the USB DP/DN 90-ohm differential layout rules to maintain USB-IF compliance. The internal 32 kHz calibrated oscillator can serve as the RTC source without an external crystal for cost-sensitive designs. This page synthesizes distributor pricing, drop-in alternatives within the XMEGA family and practical design notes not aggregated by DigiKey, Mouser or Octopart.

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ATXMEGA64A4U-MH - 64KB Flash XMEGA A4U 32MHz MCU | Microchip
ATXMEGA64A4U-MH

ATXMEGA64A4U-MH - 64KB Flash XMEGA A4U 32MHz MCU | Microchip

The Microchip Technology (formerly Atmel) ATXMEGA64A4U-MH is a low-power, high-performance 8/16-bit AVR XMEGA A4U microcontroller integrating 64 KB of self-programming Flash, 4 KB boot code section, 4 KB SRAM, and 2 KB EEPROM in a 44-pin VQFN (7x7) package. It runs up to 32 MHz, supports an operating voltage range of 1.6 V to 3.6 V, and exposes 34 general-purpose I/O lines plus an external bus interface for memory-mapped peripherals. An XMEGA A4U microcontroller is a member of the AVR enhanced RISC architecture family aimed at low-power, peripheral-rich embedded designs. Within the broader hierarchy, the ATXMEGA64A4U-MH sits between classic ATmega 8-bit MCUs (simpler peripherals, lower DMA integration) and ARM Cortex-M devices (higher MIPS, wider 32-bit datapath). The XMEGA line is purpose-built for deterministic event-driven control with hardware-accelerated data movement, bridging the gap between traditional 8-bit AVR and 32-bit ARM designs. Key features include a four-channel DMA controller that offloads memory-to-peripheral transfers, an eight-channel event system that routes peripheral triggers without CPU intervention, and a programmable multi-level interrupt controller for prioritized response. The device integrates five flexible 16-bit timer/counters with compare and PWM channels, five USARTs, and a 16-bit real-time counter (RTC) for low-power timekeeping. Technically, the ATXMEGA64A4U-MH uses Microchip's picoPower technology with multiple sleep modes and on-the-fly clock switching, enabling sub-microamp standby currents suitable for battery-powered edge nodes. The in-system programmable Flash supports read-while-write, allowing firmware updates without halting application execution. Typical applications include USB device peripherals (the A4U family integrates a full-speed USB 2.0 controller), industrial sensor hubs, smart metering, building automation controllers, and low-power IoT edge nodes where deterministic event handling and rich peripherals reduce BOM cost. When designing with this device, plan decoupling with 100 nF ceramic capacitors close to each VCC pin and follow Microchip's recommended PCB layout for the exposed pad on the 44-VQFN package. The exposed pad must be soldered to the ground plane for thermal dissipation and electrical performance. This page synthesizes verified distributor pricing, drop-in VQFN-44 alternatives from the same XMEGA family, and practical design notes not found in the standalone manufacturer datasheet.

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ATXMEGA64B1-AU - 32MHz 64KB AVR MCU | Microchip
ATXMEGA64B1-AU

ATXMEGA64B1-AU - 32MHz 64KB AVR MCU | Microchip

The Microchip Technology ATXMEGA64B1-AU is a 32 MHz 8/16-bit AVR XMEGA B1 microcontroller with 64 KB self-programming Flash, 8 KB SRAM, 2 KB EEPROM, and 53 general-purpose I/O lines in a 100-pin TQFP package. The device operates from 1.62 V to 3.6 V and combines a peripheral-rich architecture with a USB Full Speed Device controller and an LCD driver capable of supporting a 4x40 segment display. An 8/16-bit microcontroller is a compact embedded-processing semiconductor intended to execute firmware, control peripherals, and manage real-time system tasks. The AVR XMEGA B1 family uses the AVR enhanced RISC architecture and belongs to the broader hierarchy of 8-bit microcontroller, embedded processor, and system-on-chip semiconductor devices. Its combination of nonvolatile program memory, static data memory, communication peripherals, and event-driven hardware makes it suitable for control-intensive products rather than general-purpose computing. Key features include 64 KB of in-system self-programmable Flash with read-while-write capability, an 8 KB boot-code section, 8 KB SRAM, and 2 KB EEPROM. The integrated two-channel DMA controller transfers data without repeated CPU intervention, while the four-channel event system links peripherals through hardware events. A USB Full Speed Device interface supports direct USB connectivity, and the LCD controller can drive up to 4x40 segments. Up to 32 MIPS of execution capability supports responsive control and signal-processing workloads. The XMEGA B1 architecture integrates timers, communication interfaces, analog functions, and event-system resources around the AVR core. Its event system can route activity among peripherals without routing every event through the central processor, reducing interrupt overhead in deterministic designs. Read-while-write Flash supports firmware updates and data storage workflows, while DMA is useful for transferring display, communication, or sampled data blocks. The microcontroller also includes a real-time counter for timekeeping applications. Typical uses include USB-connected human-interface devices, segmented LCD instruments, industrial control panels, low-power embedded controllers, and communications equipment. The 53 I/O pins provide substantial board-level connectivity, while the USB device interface simplifies direct host connectivity. The 4x40-segment LCD capability is particularly useful in meters, counters, laboratory equipment, and appliance interfaces where a character-oriented display is preferred. When designing around the ATXMEGA64B1-AU, verify every signal against the 100-pin package pin description and keep USB routing layout-controlled on a multilayer board. The 1.62 V to 3.6 V operating range supports low-voltage designs, but external components, USB transceiver requirements, and display characteristics still require system-level validation. Firmware should also account for the independent Flash, EEPROM, SRAM, and peripheral resources when planning updates and data retention. This product page consolidates device specifications, package details, practical application guidance, and a parameter comparison that can help engineers evaluate the ATXMEGA64B1-AU before schematic capture or firmware development.

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ATXMEGA64B1-CU - 32MHz 64KB Flash MCU | Microchip Technology
ATXMEGA64B1-CU

ATXMEGA64B1-CU - 32MHz 64KB Flash MCU | Microchip Technology

The Microchip Technology ATXMEGA64B1-CU is an 8/16-bit AVR XMEGA B1 microcontroller with a 32 MHz maximum clock, 64 KB of flash memory organized as 32K x 16, and a 100-CBGA (9x9 mm) package. Its operating-voltage range is 1.6 V to 3.6 V. The device is identified by distributor listings as industrial-temperature, green, and suitable for USB-connected embedded systems requiring a compact 100-ball package. An AVR XMEGA microcontroller is a member of the embedded microcontroller hierarchy: MCU > 8/16-bit microcontroller > AVR XMEGA > mixed-signal embedded controller. It combines a programmable core, nonvolatile program memory, data memory, communication peripherals, and analog functions on one integrated circuit. The ATXMEGA64B1-CU is therefore appropriate when a design needs moderate flash capacity, multiple serial interfaces, USB connectivity, and a small component footprint rather than a general-purpose host processor. Key features include 32 MHz operation, 64 KB flash, 4 KB SRAM, 2 KB EEPROM, and a 1.6 V to 3.6 V supply range. Verified listings also identify USB 2.0 device, I2C, SPI, and UART interfaces. The 100-CBGA package provides 100 terminals in a 9x9 mm body, making the part suitable for compact industrial, utility-metering, home-automation, climate-control, medical, and USB-connectivity equipment. The 8/16-bit architecture supports both compact 8-bit instructions and enhanced 16-bit operations, allowing code density to be balanced against processing requirements. Its 64 KB flash provides substantially more program storage than the smallest XMEGA devices, while 4 KB SRAM and 2 KB EEPROM support working data and nonvolatile configuration. USB connectivity can simplify direct host-to-device communication without requiring a separate USB interface IC. Typical applications include utility metering, home automation, climate-control panels, industrial controllers, sports equipment, eTokens, medical devices, USB-connected accessories, power tools, and fire-alarm systems. These uses benefit from the combination of embedded processing, USB, serial interfaces, and a compact 100-ball package. Industrial-temperature identification is important for deployments expected to operate beyond consumer-temperature environments. Designers should review the exact pin configuration, exposed-pad requirements, clock options, USB transceiver characteristics, decoupling values, and programming interface against the manufacturer documentation before layout release. The 100-CBGA package also requires assembly capability for fine-pitch ball-grid-array inspection and soldering. Component availability and the listed $7.3475 unit price should be confirmed at purchase. This page consolidates verified distributor specifications, sourcing links, package details, pricing information, and application guidance. It also distinguishes genuine same-package family alternatives from generic functional substitutes so engineers can assess memory differences, peripheral compatibility, and PCB-reuse risk before selecting a replacement.

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ATXMEGA64B3-AN - 32MHz 64KB USB MCU | Microchip | TQFP
ATXMEGA64B3-AN

ATXMEGA64B3-AN - 32MHz 64KB USB MCU | Microchip | TQFP

Microchip Technology ATXMEGA64B3-AN is an 8/16-bit AVR XMEGA B3 microcontroller with a 32 MHz operating frequency, 64 KB of self-programming Flash memory, 4 KB of SRAM, and a 64-TQFP package measuring 14 x 14 mm. It also provides a USB Full Speed Device interface, a two-channel DMA controller, a four-channel event system, and an LCD controller capable of driving up to a 4 x 25 segment display. An 8/16-bit microcontroller is a programmable semiconductor that executes firmware, monitors inputs, and controls system peripherals. The AVR XMEGA B3 architecture combines a modified Harvard memory organization, self-programmable Flash, EEPROM, SRAM, hardware multipliers, and event-system peripherals in a single integrated circuit. It occupies the microcontroller category within embedded processing and is suitable for compact control systems that need more peripherals than a basic general-purpose microcontroller. The ATXMEGA64B3-AN operates at up to 32 MHz and reaches up to 32 MIPS throughput. Its 64 KB self-programming Flash includes a 4 KB boot-code section, while 4 KB of SRAM and 2 KB of EEPROM support working data, parameter storage, and state retention. A two-channel DMA controller can move data with less processor intervention, and the four-channel event system can trigger actions directly between hardware peripherals. Its integrated USB Full Speed Device controller enables USB connectivity without a separate interface controller. The four-times-25-segment LCD controller supports segmented human-machine interfaces without requiring an external display driver. These resources are useful when a compact product must combine local controls, data acquisition, communications, and real-time peripheral coordination. Typical uses include utility metering, home automation, climate control, industrial control, sports equipment, medical devices, USB-connected products, power tools, and fire-alarm systems. For example, an energy meter can use the LCD controller for a local display, the event system for periodic measurement timing, the DMA channels for data movement, and USB for configuration or data transfer. PCB design should preserve the pin assignments, power requirements, clock network, and USB routing specified by the Microchip manufacturer datasheet. Place decoupling capacitors close to the supply pins, provide clean grounding around the USB interface, and verify signal integrity before finalizing a high-speed or externally exposed design. The 64-TQFP footprint also requires adequate assembly clearance around all four sides. This product page organizes the ATXMEGA64B3-AN specifications, package information, application guidance, and sourcing path into one engineering reference. It also identifies the practical functional gaps that must be checked before treating another AVR or XMEGA device as a drop-in replacement.

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ATXMEGA64B3-AU - 32MHz 64KB AVR Microcontroller | Microchip
ATXMEGA64B3-AU

ATXMEGA64B3-AU - 32MHz 64KB AVR Microcontroller | Microchip

The Microchip Technology ATXMEGA64B3-AU is a low-power, high-performance 8/16-bit AVR XMEGA microcontroller with 64 KB of self-programming Flash, 4 KB of SRAM, 2 KB of EEPROM, and operation up to 32 MHz, housed in a 64-pin TQFP package. It reaches up to 32 MIPS and integrates a USB Full-Speed Device controller, a two-channel DMA controller, a four-channel event system, a four-times-25-segment LCD controller, and a programmable multilevel interrupt controller. An 8/16-bit microcontroller is a compact computing platform that combines a CPU, nonvolatile program memory, volatile data memory, peripherals, and communication interfaces on one semiconductor die. The ATxmega64B3 belongs to the AVR XMEGA family of 8-bit microcontrollers, combining an enhanced RISC architecture with high-resolution timers, flexible event handling, USB connectivity, and mixed-signal-oriented peripherals. This hierarchy places it above simple logic controllers and makes it suitable for embedded control systems requiring deterministic peripheral coordination. Key device features include 36 general-purpose I/O lines, read-while-write Flash operation, internal EEPROM and SRAM, and hardware support for real-time counter functions. According to the Microchip ATxmega64B3 product page, the device supports applications including utility metering, home automation, climate control, industrial control, sports equipment, toys, electronic tokens, medical equipment, USB connectivity, power tools, and fire-alarm systems. The B3 series is specifically offered in 64-pin packages. Technically, the ATxmega64B3 architecture combines an AVR enhanced RISC core with dedicated event-system channels, DMA transfers, and a multilevel interrupt controller. DMA can move data without occupying the CPU for every transfer, while the event system links timers, comparator, and other peripherals through hardware signals. This is useful in control and measurement designs where predictable timing, concurrent sensing, and low CPU overhead are more important than maximum general-purpose processing performance. Typical implementations include utility and energy meters, USB-connected control nodes, home-automation panels, climate-control equipment, industrial controllers, and compact human-interface systems with segment LCD displays. The LCD controller and USB interface allow a single device to manage local operator feedback and a host-side data connection. For battery-powered products, the low-power operating modes remain useful, although sleep-current figures and active-current limits should be selected from the device-specific electrical tables. When designing a PCB, reserve the 64-pin TQFP land pattern, provide clean supply decoupling at the appropriate power pins, and route USB D+ and D- as a controlled-impedance differential pair. USB clock, data, and ground returns require careful layout, while unused I/O pins should be left according to the manufacturer's pin-description guidance. Confirm programming, bootloader, clock, and peripheral multiplexing before finalizing the board. This product page consolidates the manufacturer overview, distributor identification, package details, drop-in candidates, application guidance, and practical layout considerations. It supports faster engineering decisions by separating core MCU resources from the USB, LCD, DMA, event-system, memory, and interface constraints that determine whether the ATXMEGA64B3-AU fits a new design.

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ATXMEGA64B3-MH - 32MHz 64KB AVR Microcontroller | Microchip
ATXMEGA64B3-MH

ATXMEGA64B3-MH - 32MHz 64KB AVR Microcontroller | Microchip

The Microchip Technology ATXMEGA64B3-MH is an 8/16-bit AVR XMEGA B3 microcontroller with a 32 MHz maximum clock, 64 KB self-programming Flash memory, 4 KB SRAM, 2 KB EEPROM, USB Full-Speed device support, and a 64-QFN (9x9) package. According to the manufacturer product information, it also includes a 4 KB boot-code section, a two-channel DMA controller, a four-channel event system, and a 4x25 segment LCD controller. The device provides up to 32 MIPS throughput at 32 MHz. An 8/16-bit AVR microcontroller is a programmable semiconductor that combines a CPU core, embedded Flash program memory, data memory, peripherals, and communication interfaces in one package. The ATXMEGA B3 family belongs to the AVR microcontroller, embedded processor, and 8/16-bit MCU hierarchy. Its combination of self-programming Flash, EEPROM, DMA, event-system hardware, USB connectivity, and LCD control makes it suitable for compact embedded systems that need deterministic peripheral handling without a separate host processor. Key features include 64 KB of Flash for firmware, 4 KB of SRAM, and 2 KB of nonvolatile EEPROM. The USB Full-Speed interface supports direct USB-connected equipment, while the DMA controller and event system allow data movement and peripheral events to be handled more efficiently by the CPU. The integrated 4x25 segment LCD controller can drive suitable segmented displays, reducing the need for external display-driver ICs in metering and human-interface designs. The ATXMEGA64B3 architecture combines an AVR CPU operating at up to 32 MHz with dedicated event, DMA, timer, communications, and USB resources. Its maximum throughput of 32 MIPS supports responsive control and data-processing tasks. The device is available in a 64-QFN (9x9) package, making it appropriate for compact, surface-mounted industrial, utility-metering, home-automation, medical, and USB-connectivity products where board area is constrained. Typical applications include utility meters, home-automation controllers, climate-control panels, industrial controls, sports equipment, electronic tokens, medical equipment, USB connectivity products, power tools, and fire-alarm systems. Its integrated USB device interface is particularly useful for configuration, firmware update, data logging, or direct connectivity to a host system. When designing a PCB around ATXMEGA64B3-MH, follow the manufacturer pin, package, decoupling, and layout instructions exactly. Check voltage limits and exposed-pad requirements in the datasheet, preserve the power and ground distribution architecture, and validate USB signal routing and firmware support for the intended host. Use the manufacturer datasheet pin-description table when assigning tracks and programming the device. This product page combines manufacturer specifications, distributor package and availability details, practical application guidance, design cautions, and same-family replacement analysis. It is intended to help engineers identify whether the ATXMEGA64B3-MH architecture, memory configuration, package, USB capability, and peripheral mix fit a specific embedded design before finalizing the schematic and firmware.

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ATXMEGA64C3-AN - 32MHz 64KB AVR XMEGA | Microchip
ATXMEGA64C3-AN

ATXMEGA64C3-AN - 32MHz 64KB AVR XMEGA | Microchip

The Microchip Technology ATXMEGA64C3-AN is a low-power 8/16-bit AVR XMEGA microcontroller with 64 KB in-system programmable Flash memory, 2 KB EEPROM, 4 KB SRAM, and a maximum clock frequency of 32 MHz. It is packaged in a 64-pin TQFP measuring 14 x 14 mm and operates from 1.6 V to 3.6 V. The MCU also includes a four-channel event system and read-while-write Flash capabilities. An 8/16-bit AVR XMEGA microcontroller is an embedded processing device that combines a Harvard-style AVR architecture, programmable Flash memory, data EEPROM, SRAM, event handling, interrupts, and multiple digital and analog peripherals. XMEGA devices sit between simple 8-bit microcontrollers and more complex 32-bit processors, offering deterministic event-driven behavior and a broad peripheral set for compact control systems. The ATXMEGA64C3-AN provides 64 KB of in-system programmable Flash, including an 8 KB boot-code section that supports read-while-write operation. Its 2 KB EEPROM retains configuration and calibration parameters without occupying SRAM, while 4 KB of SRAM supports protocol parsing, data acquisition, control state, and stack operations. The 32 MHz operating frequency provides additional timing margin for communication, sampling, and multi-peripheral workloads. Its four-channel event system allows signals from timers, analog comparators, input-change interrupt sources, and other peripherals to trigger actions through a configurable event routing matrix. This hardware event path reduces polling overhead and helps designers implement responsive control without routing every event through the CPU. The device also supports a programmable multilevel interrupt controller for organized handling of concurrent peripheral events. Typical uses include industrial control modules, data acquisition systems, sensor interfaces, communication equipment, compact industrial automation, and embedded consumer devices. Its combination of EEPROM, SRAM, event-system hardware, and a 1.6 V to 3.6 V supply range is useful where peripheral integration and deterministic event handling matter more than a large general-purpose processor core. When designing the PCB, reserve the 64-pin TQFP footprint, verify the pin assignments for the selected peripherals, and route clock, programming, and decoupling connections according to the manufacturer pinout and layout guidance. Pay particular attention to startup behavior and the separation between high-current I/O paths and sensitive analog or clock nets. This product page combines the manufacturer specifications with practical device-selection guidance, application fit, package information, and a parameter comparison. It focuses on engineering characteristics that determine whether the ATXMEGA64C3-AN belongs on an existing 64-pin TQFP design and what must be checked before firmware or hardware changes are committed.

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ATXMEGA64C3-AU - 32MHz 64KB 8/16-Bit MCU | Microchip
ATXMEGA64C3-AU

ATXMEGA64C3-AU - 32MHz 64KB 8/16-Bit MCU | Microchip

The Microchip Technology ATXMEGA64C3-AU is a high-performance, low-power 8/16-bit AVR XMEGA C3 microcontroller operating at up to 32 MHz, with 64 KB of in-system programmable Flash memory, 2 KB of EEPROM, and 4 KB of SRAM. It is supplied in a surface-mount 64-pin TQFP package measuring 14 x 14 mm. The 64 KB Flash includes an 8 KB boot-code section and supports read-while-write operation. An 8/16-bit microcontroller is a compact embedded-processing device that combines a CPU core, nonvolatile program memory, data memory, interrupt handling, and peripherals on one integrated circuit. The AVR enhanced RISC architecture belongs to the broader microcontroller hierarchy, where real-time control, low-power operation, and deterministic peripheral integration are central design requirements. The ATXMEGA64C3 family combines that processing platform with event-system and programmable interrupt capabilities. Key features include a four-channel event system, read-while-write Flash, 2 KB of EEPROM, and 4 KB of SRAM. Read-while-write capability can support firmware updates or data-storage operations without removing the device from its circuit, subject to the detailed restrictions and address regions described by Microchip. The four-channel event system provides hardware-assisted routing between peripherals, helping reduce processor overhead in timing-sensitive control systems. The device supports operating voltage options identified in the verified distributor data as 1.8 V, 2.5 V, and 3.3 V, while Mouser specifies an overall 1.6 V to 3.6 V range. This low-voltage operating envelope suits compact embedded equipment, portable instruments, sensor nodes, and industrial control modules. Its AVR instruction set and peripheral-rich architecture provide a practical balance between processing throughput, memory capacity, and low-power operation. Typical applications include industrial monitoring, low-power sensor interfaces, compact control panels, embedded measurement equipment, and communication-enabled control nodes. The 32 MHz clock rate supports responsive event handling and general-purpose control, while the 64 KB Flash provides useful space for application firmware, boot logic, and protocol handling. The integrated EEPROM is valuable for retaining calibration values, counters, configuration data, and audit records. Designers should select capacitors, clock circuitry, programming connections, and decoupling according to the manufacturer datasheet rather than relying only on distributor summaries. Because the verified data does not expose the complete pin map, exact I/O assignments, programming interface details, or operating-current figures, those values must be confirmed before PCB release. This page synthesizes the verified device identity, memory configuration, package information, event-system feature, sourcing links, and engineering-selection guidance without inventing unverified electrical details.

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ATXMEGA64C3-MH - AVR XMEGA 32MHz 64KB Flash MCU | Microchip
ATXMEGA64C3-MH

ATXMEGA64C3-MH - AVR XMEGA 32MHz 64KB Flash MCU | Microchip

The Microchip Technology (formerly Atmel) ATXMEGA64C3-MH is an 8/16-bit AVR XMEGA C3 microcontroller featuring 64KB in-system programmable Flash (with an 8KB boot section supporting read-while-write), 2KB EEPROM, and 4KB SRAM, housed in a 64-pin VQFN (9x9 mm) package with exposed thermal pad. An 8/16-bit microcontroller is a single-chip computer that integrates a CPU core, non-volatile program memory (Flash), working memory (SRAM), non-volatile data storage (EEPROM), and programmable peripherals on one die. Within the system hierarchy, the ATXMEGA64C3-MH sits as: microcontroller -> embedded MCU -> semiconductor IC. The XMEGA family is a superset of the AVR core architecture, adding a 4-channel event system, multi-level interrupt controller, and DMA controller to enable low-latency deterministic I/O without CPU intervention. Key features include 32 MHz maximum CPU clock from an internal 32 MHz calibrated oscillator (2% accuracy), 1.6V to 3.6V operating voltage, four 16-bit timer/counters, four USARTs, two I2C and SPI ports, a 12-channel 12-bit ADC, and a 2-channel 12-bit DAC. The device supports up to 78 general-purpose I/O pins and consumes only 9.2 mA active at 3V/32 MHz, making it suitable for battery-powered designs. Architecturally, the ATXMEGA64C3-MH implements the Harvard-style AVR XMEGA core with single-cycle ALU access to register file and Flash, a hardware multiply unit, and a peripheral event system that lets timers, ADCs, and communication peripherals trigger one another without software. The 12-bit ADC achieves up to 300 ksps with optional PGA-like input scaling, supporting sensor and instrumentation signal chains. Typical applications include industrial control and sensor nodes, USB HID/CDF bridges using the on-chip USB 2.0 full-speed controller, smart energy metering, motor control loops, and human-machine interface (HMI) boards. The wide operating voltage and Flash read-while-write capability also enable firmware-over-the-air (FOTA) bootloaders. When designing with this part, ensure decoupling of all VDDGND pairs with 100nF X7R ceramic capacitors placed within 3 mm of the package, route the exposed thermal pad to a continuous ground plane for VQFN heat dissipation, and configure PDI/PDO or JTAG pins as GPIO only when debug is permanently disabled. This page synthesizes distributor pricing, drop-in alternatives within the same VQFN-64 footprint, and practical design notes not found in the manufacturer datasheet alone.

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ATXMEGA64D3-AN - 32MHz 64KB AVR Microcontroller | Microchip
ATXMEGA64D3-AN

ATXMEGA64D3-AN - 32MHz 64KB AVR Microcontroller | Microchip

The Microchip Technology ATXMEGA64D3-AN is an 8/16-bit AVR XMEGA D3 microcontroller with a 32 MHz clock, 64 KB flash memory, 2 KB EEPROM, 4 KB SRAM, and a 64-pin TQFP package measuring 14 mm by 14 mm. It combines a high-performance AVR enhanced RISC core with a rich set of timers, communication peripherals, and event-system resources for embedded control designs. An 8/16-bit microcontroller is a programmable semiconductor that integrates a CPU core, nonvolatile program memory, data memory, and peripherals into one device. The ATXMEGA64D3 belongs to the XMEGA family within the broader hierarchy of AVR microcontrollers, embedded processors, and semiconductor components. Its 16-bit timer and counter architecture supports precise measurement and control, while its 32 MHz operation provides useful performance headroom for industrial, communications, and consumer applications. The device includes 64 KB of ISP flash with read-while-write capability, including a dedicated 4 KB boot-code section. Its 2 KB EEPROM supports nonvolatile parameter storage, and its 4 KB SRAM provides working memory for control routines, buffering, and protocol handling. Fifty general-purpose I/O lines allow connection to sensors, displays, communication transceivers, and actuators without relying entirely on external peripheral devices. The peripheral set includes a four-channel event system, a programmable multilevel interrupt controller, a 16-bit real-time counter, and five flexible 16-bit timer/counters with compare and PWM modes. These resources enable deterministic event routing, accurate timing, motor-control functions, and multi-channel waveform generation. The event system is especially useful for synchronizing hardware actions independently of main-loop software scheduling. Typical applications include industrial controllers, data acquisition equipment, communications modules, motor-control systems, building automation, and low-power embedded products. The combination of XMEGA timing peripherals and 50 GPIO lines makes the microcontroller appropriate for systems that need deterministic peripheral behavior while retaining a modest, cost-conscious 8/16-bit architecture. Designers should pay close attention to supply voltage, clock configuration, programming interfaces, and decoupling when laying out a PCB. The manufacturer datasheet provides the authoritative pin descriptions, electrical limits, startup requirements, and programming connections for each 64-pin TQFP signal. Allow the configured operating voltage and required external components to remain within their specified limits across temperature and supply conditions. This page consolidates the device architecture, verified manufacturer characteristics, drop-in replacement assessment, application guidance, and practical PCB considerations into one engineering reference. It also distinguishes true pin-compatible substitutions from family members whose memory size, package code, qualification level, or peripheral configuration makes them unsuitable as direct replacements.

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ATXMEGA64D3-AU - 32MHz AVR XMEGA Microcontroller | Microchip
ATXMEGA64D3-AU

ATXMEGA64D3-AU - 32MHz AVR XMEGA Microcontroller | Microchip

The Microchip Technology ATXMEGA64D3-AU is a high-performance, low-power 8/16-bit AVR XMEGA D3 microcontroller with a 32 MHz clock, 64 KB of ISP Flash memory, 2 KB of EEPROM, and 4 KB of SRAM in a 64-pin TQFP package. It combines a 16-bit real-time counter, flexible 16-bit timer/counters, serial interfaces, and event-system resources for embedded control applications. What is an 8/16-bit AVR XMEGA microcontroller? XMEGA is an enhanced RISC microcontroller family that combines AVR processing with extensive timing and event-management peripherals. The ATXMEGA64D3 belongs to the microcontroller hierarchy of embedded processors, 8/16-bit MCUs, and 32-bit-capable embedded controllers. Its 16-bit timer architecture and programmable event system make it useful when deterministic sampling, waveform generation, and communication must share precise timing relationships. The device provides 64 KB of in-system-programmable Flash with read-while-write capability, including a 4 KB boot-code section. It also includes 2 KB of internal EEPROM and 4 KB of SRAM. According to the Microchip ATxmega64D3 product page, the family includes 50 general-purpose I/O lines, a four-channel event system, a programmable multilevel interrupt controller, five flexible 16-bit timer/counters with compare and PWM modes, three USARTs, and two two-wire serial interfaces. Operating at up to 32 MHz, the XMEGA D3 architecture supports computationally intensive embedded tasks while retaining the deterministic peripheral resources expected in industrial and communications equipment. Its boot section can protect application code from accidental modification, while read-while-write Flash allows nonvolatile code and data updates in suitable applications. The on-chip event system provides hardware routing between timer, comparator, and communication resources, reducing reliance on interrupt-only coordination. Typical uses include industrial data acquisition, motor and power conversion control, communications equipment, low-power sensor nodes, and compact embedded control platforms. Three USARTs support multiple serial links, while the two TWI interfaces can connect sensors and EEPROM devices over a shared two-wire bus. The five 16-bit timers provide dedicated timing for counters, frequency generation, motor control, and PWM outputs. Designers should allocate the 64 KB Flash and 4 KB SRAM carefully, provide regulated 2.7 V to 3.6 V power, and validate every peripheral connection against the manufacturer pin-description table. Boot programming and clock configuration should follow the device data sheet, while decoupling and signal-integrity practices remain necessary even at 32 MHz. This page combines the ATXMEGA64D3-AU specifications, application guidance, package details, and drop-in alternative considerations into a practical engineering reference. It also distinguishes verified device attributes from parameters that still require confirmation before schematic release, PCB layout, firmware migration, or production sourcing.

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ATXMEGA64D3-MH - 64KB Flash 32MHz AVR XMEGA D3 MCU | Microchip
ATXMEGA64D3-MH

ATXMEGA64D3-MH - 64KB Flash 32MHz AVR XMEGA D3 MCU | Microchip

The Microchip Technology ATXMEGA64D3-MH is a high-performance, low-power 8/16-bit AVR XMEGA D3 microcontroller with 64 KB of in-system programmable Flash, 2 KB EEPROM, 4 KB SRAM, and a 32 MHz CPU clock, housed in a 64-pin QFN (9x9 mm) package with exposed pad. The device operates from 1.6 V to 3.6 V and integrates a four-channel event system, programmable multi-level interrupt controller, and a rich peripheral set aimed at embedded control designs. An 8/16-bit AVR XMEGA microcontroller is a member of the reduced instruction-set computing (RISC) family of microcontrollers that executes most instructions in a single clock cycle. The "XMEGA D3" sub-family extends the classic AVR architecture with higher peripheral integration (DMA, DAC, event system, crypto engine in some variants) and a 32 MHz pipeline, positioning it between traditional 8-bit MCUs and 32-bit Cortex-M parts on the cost/performance curve. The XMEGA D3 specifically targets low-power applications that still need high-resolution analog peripherals and fast ADC sampling. Key features of the ATXMEGA64D3-MH include 64 KB Flash with read-while-write support, 2 KB EEPROM for non-volatile data, 4 KB SRAM, 34 programmable I/O lines, two 12-bit DAC channels, a 12-bit ADC, four USART, two two-wire interfaces (TWI), and a four-channel event system. The QFN-64 (9x9) package with exposed thermal pad provides low thermal resistance, suitable for the device's wide -40C to +85C industrial operating range and 32 MHz operation at full peripheral load. Typical applications include industrial sensor hubs, low-power data loggers, human-machine interface (HMI) controllers, USB device controllers, smart energy metering, and motor control peripherals. Designers frequently select the XMEGA D3 family when an 8-bit footprint is acceptable but more analog integration than an ATmega is required. When using this device, allocate proper decoupling (100 nF + 1 uF) on each AVDD/DVDD pair, keep the analog and digital ground planes separated until they meet at the exposed pad, and use Atmel/Microchip Studio 7 with the AVR/GNU toolchain to leverage the integrated PDI (program and debug interface). The MH suffix indicates QFN-64 (9x9 mm) industrial temperature grade. This page synthesizes distributor pricing, drop-in alternatives from the ATXMEGA family, and practical design notes not found in the standalone datasheet.

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ATXMEGA64D3-MHR - 32MHz 64KB Flash AVR XMEGA D3 MCU | Microchip
ATXMEGA64D3-MHR

ATXMEGA64D3-MHR - 32MHz 64KB Flash AVR XMEGA D3 MCU | Microchip

The Microchip Technology ATXMEGA64D3-MHR is a high-performance, low-power 8/16-bit AVR XMEGA D3 microcontroller combining 64 KB of in-system programmable Flash memory (with 4 KB boot code section and read-while-write capability), 2 KB of EEPROM, and 4 KB of SRAM, housed in a 64-pin VQFN (QFN) package measuring 9x9 mm with an exposed thermal pad. An 8/16-bit microcontroller (MCU) is a programmable integrated circuit that combines a CPU, memory, and peripherals on a single die; the XMEGA family sits within Microchip's broader AVR microcontroller hierarchy, which extends from tiny 8-pin ATtiny devices up to multi-MB SAM ARM Cortex-M parts. The "D3" suffix denotes a peripheral-rich family targeting industrial HMI, sensor hubs, and low-power instrumentation. The "XMEGA" label refers to the enhanced AVR RISC architecture with 32 working registers, single-cycle execution, and dedicated DMA controllers that move data between peripherals without CPU intervention. Key features include a 32 MHz maximum CPU clock delivering up to 32 MIPS, 1.6 V to 3.6 V single-supply operation, four-channel event system, programmable multi-level interrupt controller, 50 general-purpose I/O pins, and on-chip peripherals such as ADC, DAC, AES/DES crypto engine, USB, and multiple USART/SPI/TWI interfaces. The 64-pin VQFN (9x9) exposed-pad package lowers thermal resistance to approximately 30 C/W when the EP is soldered to a ground plane, enabling industrial-grade -40C to +85C operation. The architecture pairs the AVR enhanced RISC core with an innovative peripheral event system that lets timers, DMA channels, and communication peripherals signal each other without CPU wake-up, dramatically reducing active current in event-driven applications. Read-while-write Flash allows firmware updates without halting code execution, while the cryptographic engine accelerates AES-128/DES for secure nodes. Typical applications include industrial sensor hubs, building automation controllers, HMI panels, USB peripherals, motor control front-ends, and low-power wireless sensor nodes. The wide 1.6 V to 3.6 V supply range also supports direct battery operation from a single Li-ion or two AA cells. For designs requiring more memory, the XMEGA D3 family scales up to ATXMEGA128D4 and ATXMEGA256D3 in the same package footprint. When designing, allocate a continuous ground copper pour under the exposed pad and route high-speed signal traces with controlled impedance. The XMEGA D3 supports Atmel Studio / Microchip Studio 5.x and ASF drivers, easing firmware migration from earlier ATmega devices to the XMEGA line. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone - including a comparison of same-family D3 variants and cross-brand alternatives that share the same 64-pin VQFN footprint.

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ATXMEGA64D4-AN - 32MHz 64KB AVR Microcontroller | Microchip
ATXMEGA64D4-AN

ATXMEGA64D4-AN - 32MHz 64KB AVR Microcontroller | Microchip

The Microchip Technology ATXMEGA64D4-AN is an 8/16-bit AVR XMEGA D4 microcontroller operating at up to 32 MHz, with 64 KB of programmable Flash memory, 2 KB of EEPROM, and 4 KB of SRAM in a 44-pin TQFP package measuring 10 x 10 mm. Its supply-voltage range is 1.6 V to 3.6 V, making it suitable for compact embedded systems operating from low-voltage rails. The device combines an enhanced AVR RISC core with a four-channel event system and a programmable multilevel interrupt controller for deterministic event handling. An 8/16-bit microcontroller is a programmable semiconductor that executes firmware, reads sensors, controls actuators, and manages communications within an embedded product. The ATXMEGA64D4 belongs to the AVR XMEGA family, a low-power, high-performance architecture with integrated flash, EEPROM, SRAM, timers, serial interfaces, and general-purpose I/O. This combination reduces the number of supporting components needed for control-oriented embedded designs. Key features include read-while-write in-system-programmable Flash, a 4 KB boot-code section, 2 KB of EEPROM, 4 KB of SRAM, 34 general-purpose I/O lines, and four flexible 16-bit timer/counter modules with compare and PWM channels. The device also provides two USARTs, two two-wire serial interfaces, a four-channel event system, and a 16-bit real-time counter. These resources support simultaneous control, communications, timing, and data-retention requirements. The ATXMEGA64D4 architecture is intended for low-power, real-time embedded control while retaining substantial peripheral integration. Read-while-write Flash allows nonvolatile program storage to operate concurrently with suitable code execution, while separate SRAM and EEPROM support working data and persistent parameter retention. The programmable interrupt controller and event system help connect asynchronous peripheral events without requiring every event to be handled through a main polling loop. Typical uses include industrial sensor controllers, compact data-acquisition modules, motor and actuator control, communication bridges, and low-power embedded instruments. Its two USARTs can support host or peer serial links, while its two TWI interfaces support external EEPROM, sensor, and other TWI-compatible peripherals. The 34 I/O lines make it useful when a system needs more parallel control than a small 8- or 16-pin MCU can provide. A primary design consideration is the combination of Flash capacity and SRAM partitioning. Firmware, boot code, stack usage, and application data must be planned together, and the manufacturer datasheet should define the programming and bootloader workflow before the PCB is finalized. Decoupling, clock configuration, programming access, and unused-pin handling must also follow the device-specific recommended layout. This product page consolidates the verified device specifications, package details, sourcing information, and engineering guidance needed to evaluate the ATXMEGA64D4-AN. It also provides practical application and PCB guidance for engineers determining whether the AVR XMEGA D4 feature set fits a new embedded design.

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ATXMEGA64D4-AU - 32MHz 64KB AVR MCU | Microchip
ATXMEGA64D4-AU

ATXMEGA64D4-AU - 32MHz 64KB AVR MCU | Microchip

The Microchip Technology ATXMEGA64D4-AU is a high-performance 8/16-bit AVR XMEGA D4 microcontroller with 32 MHz operation, 64 KB flash memory, 2 KB EEPROM, 4 KB SRAM, and 34 general-purpose I/O lines. It is housed in a 44-pin TQFP package measuring 10 mm by 10 mm. The device targets embedded systems requiring broad serial connectivity, timing, analog, and event-driven control without the memory footprint of a larger 32-bit MCU. An 8/16-bit microcontroller is a compact embedded controller that executes instructions from internal program and data memory while integrating peripherals for communication, timing, interrupts, and signal control. In the broader device hierarchy, the ATXMEGA64D4-AU belongs to the AVR family, the XMEGA D4 subfamily, and ultimately the semiconductor and embedded-control categories. Its enhanced RISC architecture supports predictable instruction throughput suitable for motor, communications, instrumentation, and industrial control designs. Verified device features include read-while-write in-system-programmable flash, a 4 KB boot-code section, a four-channel event system, a programmable multilevel interrupt controller, four flexible 16-bit timer/counter blocks, a 16-bit real-time counter, two USARTs, two two-wire serial interfaces, and additional connectivity documented in the AVR XMEGA D4 datasheet. This peripheral mix supports simultaneous sensor acquisition, actuator timing, serial links, and event-based signal routing. The ATXMEGA64D4-AU combines 64 KB of flash with only 4 KB of SRAM, making flash utilization and interrupt timing important design considerations. Firmware should use the documented memory regions carefully, avoid unnecessary blocking routines, and reserve SRAM for stacks, buffers, and time-critical data. In-system programming and read-while-write operation can simplify firmware updates, although application code must observe the device's program-memory execution restrictions. Typical applications include industrial control panels, sensor hubs, motor-control peripherals, data-acquisition modules, building-control nodes, low-power serial gateways, and compact embedded instruments. The 34 I/O lines allow connection of sensors, displays, communications transceivers, and actuators while retaining dedicated peripheral functions. Compared with simpler 8-bit MCUs, the XMEGA D4 architecture offers higher clock speed and a broader peripheral set; compared with higher-end 32-bit MCUs, it offers a simpler control-oriented architecture and lower memory capacity. Designers should verify every package pin, alternate-function mapping, voltage domain, and peripheral limit against the manufacturer datasheet before layout release. The -AU ordering information identifies the 44-pin TQFP device, but package suffixes, temperature grades, clock options, and programmed variants must be checked during procurement. A hardware design should preserve the recommended decoupling, programming-interface access, clock stability, and exposed-ground layout practices specified by Microchip. This page consolidates the verified manufacturer and distributor information for ATXMEGA64D4-AU with engineering-focused selection guidance. It distinguishes documented capabilities from unavailable details, emphasizes the 32 MHz and 64 KB memory limits, and avoids treating functionally similar MCUs as verified drop-in replacements. For sourcing, use the linked distributor records to confirm current inventory, price, delivery, and exact suffix handling.

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ATXMEGA64D4-CU - 32MHz 64KB AVR Microcontroller | Microchip
ATXMEGA64D4-CU

ATXMEGA64D4-CU - 32MHz 64KB AVR Microcontroller | Microchip

The Microchip Technology ATXMEGA64D4-CU is a low-power 8/16-bit AVR XMEGA D4 microcontroller with a 32 MHz clock, 64 KB ISP Flash memory, 2 KB EEPROM, 4 KB SRAM, and a 49-VFBGA 5x5 mm package. The device provides a 1.6 V to 3.6 V operating range and combines four-channel event-system support with a programmable multi-level interrupt controller. Its 64 KB flash organization is specified as 32K x 16, with a dedicated 4 KB boot-code section and read-while-write capability. An 8/16-bit microcontroller is a programmable semiconductor that integrates a CPU core, nonvolatile program memory, working memory, peripherals, and communication interfaces on one package. The ATXMEGA64D4 belongs to the AVR XMEGA product family and extends the AVR enhanced RISC architecture into a higher-performance, peripheral-rich platform. Its hierarchy is microcontroller → 8/16-bit microcontroller → AVR XMEGA microcontroller → XMEGA D4 device, placing it between general-purpose 8-bit control and more demanding 16-bit embedded processing. Verified device features include 64 KB of ISP Flash in a 32K x 16 organization, a separate 4 KB boot-code section, 2 KB EEPROM, and 4 KB SRAM. Read-while-write operation allows supported code regions to execute while another Flash area is updated. The four-channel event system can coordinate timing-sensitive internal operations without relying entirely on software polling, while the programmable multi-level interrupt controller helps prioritize real-time events. The compact 49-VFBGA package reduces board area compared with larger leaded or QFN packages. The ATXMEGA64D4 uses the AVR enhanced RISC core and supports operation from a 1.6 V to 3.6 V supply, making it appropriate for embedded systems that require more memory and event-driven control than typical entry-level 8-bit MCUs. Distributor listings identify I2C, IrDA, SPI, and UART/USART connectivity for the compared D4-class device, while the manufacturer describes a high-performance, low-power platform with integrated event handling and interrupt resources. Typical uses include compact industrial control modules, low-power sensor nodes, building and automation controllers, communication equipment, motor-control peripherals, and compact consumer products. The 32 MHz operating speed provides useful headroom for protocol processing and coordinated peripheral activity, while 64 KB Flash supports a bootloader and a larger application than many basic 8-bit controllers. Designers still need to confirm speed, analog, and peripheral limits against the full Microchip datasheet for each operating voltage. The main design consideration is the 49-VFBGA land pattern. Its fine pitch and exposed thermal pad require careful PCB design, stencil selection, reflow-profile control, and assembly inspection. Because the verified package drawing and complete 49-pin electrical map were not included in the supplied sources, engineers should download the official ATxmega64D4 documentation before defining the footprint, programming connector, and decoupling network. This page consolidates verified manufacturer and distributor information, distinguishes same-package candidates from non-drop-in comparisons, and adds application guidance and PCB cautions that are not available from a basic distributor listing alone.

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ATXMEGA64D4-MH - 32MHz AVR XMEGA 64KB MCU | Microchip
ATXMEGA64D4-MH

ATXMEGA64D4-MH - 32MHz AVR XMEGA 64KB MCU | Microchip

The Microchip Technology ATXMEGA64D4-MH is a low-power 8/16-bit AVR XMEGA D4 microcontroller with a 32 MHz clock, 64 KB flash memory, 2 KB EEPROM, 4 KB SRAM, and a 44-pin VQFN package measuring 7 x 7 mm. It combines read-while-write in-system programmable flash with a peripheral set designed for compact embedded control, communications, timing, and signal-processing systems. An AVR XMEGA microcontroller is an 8/16-bit embedded-processing device built around the enhanced AVR RISC architecture. Unlike a general-purpose microprocessor, it integrates flash memory, SRAM, EEPROM, interrupt control, timers, serial interfaces, and analog peripherals into one low-power component. The ATXMEGA64D4 family provides deterministic event handling and flexible timer resources for applications that need more control capability than a basic 8-bit MCU without moving to a more complex processor architecture. Key device features include 64 KB of ISP flash with read-while-write operation, 2 KB of EEPROM, and 4 KB of SRAM. The four-channel event system, programmable multilevel interrupt controller, 34 general-purpose I/O lines, and four flexible 16-bit timer/counters support responsive control tasks. Two USARTs and two two-wire serial interfaces provide multiple options for external sensors, displays, data acquisition equipment, and industrial communications links. The device operates from 1.6 V to 3.6 V and includes a 16-bit real-time counter with separate and combined 32-bit counters. Its four timer/counter modules include compare and PWM channels, while the event system can route signals between peripherals without excessive interrupt-service overhead. These characteristics support simultaneous sensing, timing, communications, and actuator-control functions within one compact package. Typical uses include industrial control modules, sensor-hub boards, data loggers, motor-control peripherals, building-automation interfaces, communications equipment, and compact test-and-measurement products. The 44-VQFN footprint is particularly useful when board area is constrained, although its fine pitch requires careful PCB assembly and exposed-pad thermal management. For a new design, route the VQFN exposed pad to a properly sized ground plane, place decoupling capacitors close to the supply pins, and confirm the board footprint against the manufacturer pinout drawing. Firmware should use the documented XMEGA clock, event-system, timer, and USART configuration registers. Because no explicit programming-voltage or clock-configuration values are listed on the product page, use the device data sheet and selected programming tool documentation before finalizing board and firmware settings. This product page organizes the core MCU specifications, same-package alternatives, application guidance, and design considerations into a selection-focused reference. It also distinguishes verified product attributes from unresolved details so engineers can evaluate the ATXMEGA64D4-MH against other AVR XMEGA D4 choices before committing a board or production BOM.

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ATXMEGA8E5-AN - 32MHz 8KB AVR Microcontroller | Microchip
ATXMEGA8E5-AN

ATXMEGA8E5-AN - 32MHz 8KB AVR Microcontroller | Microchip

The Microchip Technology ATXMEGA8E5-AN is a low-power, high-performance 8/16-bit AVR XMEGA E5 microcontroller with a 32 MHz maximum clock, 8 KB flash memory, 512 bytes EEPROM, 1 KB SRAM, and eight-channel event-system support, housed in a 32-pin TQFP package. The -AN suffix identifies the specified Microchip ordering configuration, while the family datasheet is titled ATxmega32E5/16E5/8E5 Data Sheet. A microcontroller is a programmable embedded-control IC that integrates a processor core, memory, timers, communication interfaces, and peripherals on one device. The AVR XMEGA E5 belongs to the 8/16-bit AVR enhanced RISC microcontroller family, combining low-power operation with event-driven control and read-while-write flash support. This makes it useful for compact control systems that need deterministic timing and flexible peripheral interconnection. The ATXMEGA8E5-AN combines 8 KB ISP flash with an additional 2 KB boot-code section, 512 bytes EEPROM, and 1 KB SRAM. Its operating supply range is listed by Mouser as 1.6 V to 3.6 V, with an operating-temperature marking of 105C. The family documentation identifies a 32-pin device configuration, while the distributor listings identify this exact orderable part as ATXMEGA8E5-AN in a 32-TQFP package. The ATXMEGA family is intended for applications where compact code execution, EEPROM retention, and event-system peripherals are valuable. The eight-channel event system is a key architectural feature. It allows hardware peripherals and external signals to communicate through event resources, reducing the need for polling and helping coordinate timing-sensitive tasks. The integrated memory arrangement also supports firmware storage, boot loading, and working data in a single controller. Compared with a larger general-purpose MCU, the ATXMEGA8E5-AN offers a focused 8/16-bit platform with a small memory footprint and a 32 MHz clock. Typical uses include industrial automation, sensor and actuator control, compact embedded instruments, motor-control support, communication-interface designs, and low-power control nodes. The exact peripheral mix, electrical limits, programming requirements, and package pin details should be confirmed against the Microchip family datasheet and the ATXMEGA8E5-AN ordering information before final PCB release. Designers should preserve the required decoupling, oscillator layout, programming access, and unused-pin treatment recommended by the manufacturer. Firmware should be built for the ATxmega8E5 device definition and validated with the intended clock source and supply voltage. Because this page is assembled from distributor listings and the family datasheet, package suffixes and purchasing conditions should be checked against the latest authorized source. This page combines verified distributor specifications, the official Microchip product description, family datasheet information, application guidance, and sourcing links to support component selection and engineering review.

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ATXMEGA8E5-ANR - 32MHz 8KB AVR Microcontroller | Microchip (Tape & Reel)
ATXMEGA8E5-ANR

ATXMEGA8E5-ANR - 32MHz 8KB AVR Microcontroller | Microchip (Tape & Reel)

The Microchip Technology ATXMEGA8E5-ANR is a low-power, high-performance 8/16-bit AVR XMEGA E5 microcontroller with a 32 MHz maximum clock, 8 KB flash memory, 512 bytes EEPROM, 1 KB SRAM, and eight-channel event-system support, housed in a 32-pin TQFP package. The -AN suffix identifies the specified Microchip ordering configuration, while the family datasheet is titled ATxmega32E5/16E5/8E5 Data Sheet. A microcontroller is a programmable embedded-control IC that integrates a processor core, memory, timers, communication interfaces, and peripherals on one device. The AVR XMEGA E5 belongs to the 8/16-bit AVR enhanced RISC microcontroller family, combining low-power operation with event-driven control and read-while-write flash support. This makes it useful for compact control systems that need deterministic timing and flexible peripheral interconnection. The ATXMEGA8E5-ANR combines 8 KB ISP flash with an additional 2 KB boot-code section, 512 bytes EEPROM, and 1 KB SRAM. Its operating supply range is listed by Mouser as 1.6 V to 3.6 V, with an operating-temperature marking of 105C. The family documentation identifies a 32-pin device configuration, while the distributor listings identify this exact orderable part as ATXMEGA8E5-ANR in a 32-TQFP package. The ATXMEGA family is intended for applications where compact code execution, EEPROM retention, and event-system peripherals are valuable. The eight-channel event system is a key architectural feature. It allows hardware peripherals and external signals to communicate through event resources, reducing the need for polling and helping coordinate timing-sensitive tasks. The integrated memory arrangement also supports firmware storage, boot loading, and working data in a single controller. Compared with a larger general-purpose MCU, the ATXMEGA8E5-ANR offers a focused 8/16-bit platform with a small memory footprint and a 32 MHz clock. Typical uses include industrial automation, sensor and actuator control, compact embedded instruments, motor-control support, communication-interface designs, and low-power control nodes. The exact peripheral mix, electrical limits, programming requirements, and package pin details should be confirmed against the Microchip family datasheet and the ATXMEGA8E5-ANR ordering information before final PCB release. Designers should preserve the required decoupling, oscillator layout, programming access, and unused-pin treatment recommended by the manufacturer. Firmware should be built for the ATxmega8E5 device definition and validated with the intended clock source and supply voltage. Because this page is assembled from distributor listings and the family datasheet, package suffixes and purchasing conditions should be checked against the latest authorized source. This page combines verified distributor specifications, the official Microchip product description, family datasheet information, application guidance, and sourcing links to support component selection and engineering review.

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ATXMEGA8E5-AU - 32MHz 8KB AVR MCU | Microchip Technology
ATXMEGA8E5-AU

ATXMEGA8E5-AU - 32MHz 8KB AVR MCU | Microchip Technology

The Microchip Technology ATXMEGA8E5-AU is an 8/16-bit AVR XMEGA E5 microcontroller with a 32 MHz maximum operating frequency, 8 KB of ISP Flash memory, and a 32-pin TQFP package measuring 7 mm × 7 mm. It operates from 1.6 V to 3.6 V and is supplied in an industrial-temperature, green package configuration. An AVR XMEGA microcontroller is a compact embedded-control device that combines a CPU core, flash program memory, SRAM, EEPROM, timers, communication peripherals, and event-system hardware on one integrated circuit. The ATXMEGA8E5 belongs to the low-power, high-performance XMEGA E5 family, where the enhanced RISC architecture supports deterministic embedded processing for control, sensing, communications, and low-energy products. The device provides 8 KB of ISP Flash organized as 4K × 16, plus a 2 KB boot-code section with read-while-write capabilities. Its memory resources include 512 bytes of EEPROM and 1 KB of SRAM. An eight-channel event system connects peripherals without requiring continuous CPU intervention, while a programmable multi-level interrupt system supports event-driven firmware designs. A maximum clock frequency of 32 MHz provides additional performance headroom for compact control tasks. The ATXMEGA8E5-AU is intended for embedded systems that need deterministic peripheral interaction, efficient local storage, and a compact surface-mount footprint. Potential uses include industrial control modules, low-power sensor nodes, compact motor-control subsystems, building automation, instrumentation, and compact consumer accessories. The 1.6 V minimum operating voltage also makes the device suitable for systems designed around low-voltage energy-storage or sensor-power rails. Designers should pay attention to the 1.6 V to 3.6 V supply range, available 1 KB SRAM, and the division between 8 KB general Flash and the 2 KB boot section. Firmware size and interrupt-heavy workloads should be checked against the limited SRAM. Decoupling, clock stability, programming access, and exposed-pad or via-in-pad land patterns should be reviewed against the complete manufacturer data sheet before layout release. This page consolidates the verified manufacturer and distributor specifications, focused drop-in comparison data, and practical engineering guidance for the ATXMEGA8E5-AU. It also distinguishes verified electrical and packaging facts from parameters that require confirmation in the complete Microchip documentation.

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