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ATMEGA32M1-15MZ

ATMEGA32M1-15MZ - 32KB AVR MCU w/ Motor Control | Microchip

The Microchip Technology ATMEGA32M1-15MZ is an 8-bit AVR RISC microcontroller with 32 KB ISP Flash memory, 1 KB EEPROM, 2 KB SRAM, and an integrated 3-phase motor power stage controller (PSC), operating at up to 16 MHz and housed in a 32-pin QFN package with exposed pad (MLF-32), rated for automotive temperature ranges. An 8-bit AVR microcontroller is a Harvard-architecture RISC processor that executes most of its 131 instructions in a single clock cycle, sitting within the broader power management and embedded control hierarchy of MCU-based motor drive systems. The ATmega M1 family (ATmega16M1/32C1/32M1/64C1/64M1) adds dedicated motor-control peripherals to the standard megaAVR core, replacing a generic MCU plus discrete gate-driver solution with a single-chip design. Key features include 32 KB of self-programmable ISP Flash with read-while-write capability, 27 general purpose I/O lines, 32 general purpose working registers, and an internal oscillator option that eliminates the need for an external crystal in cost-sensitive designs. The integrated PSC (Power Stage Controller) generates complementary PWM outputs with dead-time insertion for 3-phase BLDC, PMSM, and ACIM motor drives. The device also integrates peripherals common to automotive body and drive electronics: a CAN controller, 10-bit ADC, USART, SPI, and TWI (I2C) interfaces, enabling sensor feedback loops and in-vehicle network communication from the same die. The AVR core's single-cycle execution supports deterministic control-loop timing at 16 MHz. Typical applications include automotive 3-phase motor control (pumps, fans, HVAC actuators), industrial motor drives, and power conversion systems where CAN connectivity and integrated PWM hardware reduce bill-of-materials count. A key design consideration: the QFN exposed pad is the primary ground and thermal path, so it must be soldered to a grounded copper pour for reliable operation at full load. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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ATMEGA32M1-AU

ATMEGA32M1-AU - 8-bit AVR MCU 32KB Flash 16MHz TQFP-32 | Microchip

The Microchip Technology ATMEGA32M1-AU is a high-performance, low-power 8-bit AVR RISC microcontroller with 32 KB ISP Flash memory, 1 KB EEPROM, 2 KB SRAM, a 16 MHz maximum clock rate, and an integrated motor power stage controller (PSC), housed in a 32-pin TQFP (7x7 mm) package. A microcontroller unit (MCU) is a single-chip computer that integrates a processor core, program memory, data memory, and peripherals such as timers, communication interfaces, and analog-to-digital converters. MCUs sit at the heart of the embedded systems hierarchy - from semiconductor ICs to microcontroller families such as AVR, PIC, and ARM Cortex-M - and are used wherever deterministic, low-power control is required. The ATmega M1 series is Microchip's automotive-oriented megaAVR line, adding LIN-bus connectivity and a PSC motor controller to the classic AVR architecture. Key features of the ATMEGA32M1-AU include 131 powerful AVR instructions with mostly single-clock execution, read-while-write self-programming of the 32 KB ISP Flash, an 11-channel 10-bit ADC, a 1-channel 10-bit DAC, hardware LIN 2.0 connectivity, and two flexible 16-bit timer/counters with compare modes and PWM. The AVR advanced RISC architecture provides 32 general-purpose working registers directly connected to the ALU, giving high code density and fast deterministic execution for real-time control loops. Technically, the device combines the classic AVR 8-bit core with dedicated application peripherals: the Power Stage Controller (PSC) generates complementary PWM outputs with dead-time insertion for motor driving, while the LIN controller offloads LIN 2.0 protocol handling from the CPU. Supply voltage spans 2.7 V to 5.5 V per the datasheet family range, and the internal RC oscillator removes the need for an external crystal in cost-sensitive designs. Typical applications include BLDC and DC motor control nodes in automotive body electronics, LIN slave nodes for door modules, seat controllers, and sensor hubs, plus industrial actuator and pump control where integrated PWM power stages reduce external component count. When designing with this device, budget code space carefully - 32 KB Flash and 2 KB SRAM suit mid-complexity motor control firmware, and compiler optimization plus fixed-point math keep the SRAM footprint within limits. This page synthesizes distributor pricing, drop-in alternatives across the ATmega M1/C1 family, and practical design notes not found in the manufacturer datasheet.

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ATMEGA32U2-AU

ATMEGA32U2-AU - 8-bit AVR USB MCU 32KB Flash 16MHz | Microchip

The Microchip Technology ATMEGA32U2-AU is an 8-bit AVR RISC USB microcontroller with 32 KB ISP Flash (16K x 16), 1 KB EEPROM, 1 KB SRAM, 22 general purpose I/O lines, and full-speed USB 2.0 connectivity, operating up to 16 MHz in a 32-pin TQFP (7x7 mm) package. An 8-bit microcontroller (MCU) is a single-chip processor integrating CPU, program memory, data memory, and peripherals such as USB, SPI, and UART. Within the power/performance hierarchy of embedded systems, ATmega-class MCUs occupy the cost-sensitive, low-power segment below 32-bit MCUs and application processors, and are widely deployed in consumer and industrial firmware platforms. Key features include AVR enhanced RISC architecture executing most instructions in a single clock cycle for throughput approaching 1 MIPS per MHz, read-while-write ISP Flash for self-programming and in-field firmware updates, and an integrated full-speed USB device controller that eliminates an external USB interface chip. The ATmega32U2 also provides two flexible timer/counters and 32 general purpose working registers. Technically, the device belongs to the ATmega8U2/16U2/32U2 family, sharing a common die architecture and pinout across Flash sizes, which eases platform scaling. The USB controller supports device operation with dedicated data pins and HWB bootstrap pin for USB bootloader entry, enabling driver-less DFU-style programming. Typical applications include USB HID devices (keyboards, mice, game controllers), USB-to-UART bridge adapters, small USB peripherals, and firmware upgrade handlers in larger systems. A key design consideration: program the HWB pin state and fuse bits correctly so the device enters the USB bootloader or application firmware as intended at reset. This page synthesizes distributor pricing, drop-in family alternatives, and practical design notes not found in the manufacturer datasheet.

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ATMEGA32U2-MU

ATMEGA32U2-MU - 8-bit AVR USB MCU 16MHz 32KB Flash | Microchip

The Microchip Technology ATMEGA32U2-MU is an 8-bit AVR RISC USB microcontroller with 32 KB ISP Flash memory, 1 KB EEPROM, and 1 KB SRAM, operating at up to 16 MHz in a 32-pin VQFN (5x5 mm) package with exposed thermal pad. It integrates a full-speed USB 2.0 device controller with hardware flow control, making it a single-chip replacement for designs that previously required an external USB-to-UART bridge. A microcontroller (MCU) is a single-chip computer that integrates a processor core, non-volatile program memory, volatile data memory, and programmable peripherals on one silicon die. The ATMEGA32U2 belongs to the AVR ATmega USB family within the broader taxonomy microcontroller -> embedded controller -> semiconductor, specifically positioned for embedded applications that need native USB device connectivity without an external PHY or serial converter. Key features include 131 powerful AVR RISC instructions with mostly single-clock-cycle execution, 32 general-purpose working registers directly connected to the ALU, 22 general-purpose I/O lines, two flexible 8/16-bit timer/counters with PWM, a USART, SPI serial interface, programmable watchdog timer with internal oscillator, and a USB device controller that supports remote wake-up. The device operates from 2.7 V to 5.5 V (4.5 V to 5.5 V for full-speed USB at 16 MHz) and is rated for the industrial temperature range. The advanced RISC architecture delivers up to 16 MIPS at 16 MHz, allowing deterministic single-cycle instruction throughput. The 32 KB read-while-write ISP Flash enables in-system self-programming for bootloader-driven firmware updates over the USB bus, which is why this MCU is widely adopted as a USB interface controller in Arduino-class boards and as a USB HID bootloader in keyboards, mice, and game controllers. Typical applications include USB-to-UART bridge dongles, Arduino Uno R3-style USB interface controllers, custom USB HID devices such as keyboards, mice, and gamepads, MIDI adapters, and general embedded products requiring USB device connectivity. The industrial temperature rating supports factory automation, instrumentation, and outdoor systems. The exposed-pad VQFN-32 package enables compact PCB layouts. When designing with this device, coordinate the supply voltage and USB VBUS rail: USB requires 4.5 V to 5.5 V, so a 3.3 V system must include a regulator. Decouple VCC, AVCC, and UCAP with 100 nF ceramics placed close to the respective pins, and tie the exposed pad to a clean ground copper pour for thermal dissipation and reference integrity. This page synthesizes distributor pricing, drop-in same-family and cross-brand alternatives, and practical design notes not found in the manufacturer datasheet.

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ATMEGA32U4

ATMEGA32U4 - 8-bit AVR MCU, 32KB Flash, USB 2.0 | Microchip

The Microchip ATmega32U4 is a low-power CMOS 8-bit AVR RISC microcontroller with 32 KB of In-System Programmable Flash, USB 2.0 full-speed/low-speed device controller, 2.5 KB SRAM, and 1 KB EEPROM in a 44-pin TQFP package. It executes most instructions in a single clock cycle, achieving throughputs approaching 1 MIPS per MHz and enabling a balance between power consumption and processing speed. What is an 8-bit microcontroller? An 8-bit microcontroller (MCU) is a single-chip computer that integrates a CPU core, program memory (Flash), data memory (SRAM), non-volatile storage (EEPROM), and peripherals such as timers, ADCs, and communication interfaces. The AVR family from Atmel/Microchip uses a RISC architecture with 32 general-purpose working registers directly connected to the arithmetic logic unit, allowing single-cycle register access. The ATmega32U4 sits in the broader taxonomy: microcontroller -> 8-bit MCU -> AVR family -> megaAVR class, distinguished from the tinyAVR and XMega sub-families by larger memory and richer peripherals. Key features include 26 general-purpose I/O lines, four flexible Timer/Counters with compare modes and PWM, one high-speed Timer/Counter, a 12-channel 10-bit ADC, a USART, SPI, I2C (TWI), JTAG debug interface, and an integrated USB 2.0 full-speed/low-speed controller with on-chip transceiver. The device supports 2.7V to 5.5V operation at industrial temperature range (-40C to +85C) and includes power-save modes for battery-driven applications. Typical applications include USB Human Interface Devices (HID) such as keyboards, mice, and game controllers, custom MIDI controllers, Arduino Leonardo / Pro Micro compatible boards, low-cost data acquisition front-ends, and industrial control panels. The integrated USB eliminates the need for an external bridge chip, reducing BOM cost and PCB area. When designing with this device, ensure the USB D- line is properly matched and that VBUS is sensed through a voltage divider to the UVCC pin. Decouple AVCC and VCC with 100 nF ceramic capacitors placed within 5 mm of the supply pins.

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ATMEGA32U4-AU

ATMEGA32U4-AU - 8-bit AVR MCU, 16MHz, 32KB Flash, USB | Microchip

The Microchip ATMEGA32U4-AU is an 8-bit AVR RISC microcontroller with integrated USB 2.0 full-speed/low-speed device controller, 32KB self-programming Flash, 2.5KB SRAM, 1KB EEPROM, 12-channel 10-bit ADC, and JTAG debug interface, packaged in a 44-pin TQFP (10x10 mm) and operating from 2.7V to 5.5V at up to 16 MHz. An 8-bit AVR microcontroller (AVR = Alf and Vegard's RISC processor) is a modified-Harvard RISC MCU family from Microchip (originally Atmel) that executes most instructions in a single clock cycle and is widely used in Arduino, USB HID, and keyboard-firmware designs. In the broader taxonomy it sits inside the MCU hierarchy as: microcontroller -> embedded controller -> semiconductor -> integrated circuit. The 'U4' suffix specifically denotes on-chip USB hardware, distinguishing the part from non-USB siblings such as ATmega32A. Key features of this ATmega32U4 variant include 16 MIPS throughput at 16 MHz, 131 powerful instructions, 32 programmable I/O lines, an on-chip USB 2.0 transceiver that eliminates an external PHY, hardware multiplier, six sleep modes for power-sensitive applications, and an industrial -40C to +85C operating range. The non-J (AU) suffix indicates the 44-pin TQFP package in industrial temperature grade. The architecture pairs an advanced RISC core with non-volatile program memory, on-chip SRAM and EEPROM, plus a rich peripheral set including ADC, timers/USART, SPI, TWI (I2C), and the USB device controller with up to 8 endpoints. The USB module removes the BOM cost of an external FTDI bridge, which is why the ATmega32U4 is the silicon heart of the Arduino Leonardo, Arduino Micro, Pro Micro, and many QMK-based custom keyboards. Typical applications include USB Human Interface Devices (keyboards, mice, MIDI controllers), Arduino-compatible boards, custom mechanical-keyboard controllers, USB-to-UART bridges, USB data-acquisition front-ends, and low-cost consumer HID peripherals. When designing with this MCU, place the 22 ohm USB D+/D- source-series resistors close to the pins, fit a 1uF VBUS decoupling capacitor, and ensure the HWB/PE2 strap pin is pulled correctly to enter bootloader mode.

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ATMEGA32U4-AUR

ATMEGA32U4-AUR - 8-Bit AVR MCU, USB, 16MHz | Microchip

The Microchip Technology ATMEGA32U4-AUR is a low-power 8-bit AVR RISC microcontroller with 32 KB self-programming ISP Flash, 2.5 KB SRAM, 1 KB EEPROM, an integrated USB 2.0 full-speed/low-speed device controller, a 12-channel 10-bit ADC, and a JTAG interface for on-chip debug, packaged in a 44-pin TQFP (10x10 mm). A microcontroller unit (MCU) is a single-chip computer that integrates a processor core, memory, and peripherals such as timers, ADCs, and communication interfaces into one IC. Within the power-management and embedded-systems hierarchy, the ATmega32U4 belongs to the 8-bit AVR family (ATmega line -> AVR RISC architecture -> microcontroller -> semiconductor), where it is distinguished by native USB device support that eliminates the need for an external USB-serial bridge chip. Key features include up to 16 MIPS throughput at 16 MHz, 131 mostly single-cycle AVR instructions, and 2.7 V to 5.5 V single-supply operation. The integrated USB 2.0 full-speed controller with on-chip transceiver makes the part a favorite for human-interface devices (HID): keyboards, mice, and game controllers that enumerate as native USB peripherals without external components. Technical depth: the advanced RISC core provides 32 x 8-bit general-purpose working registers with fully static operation. The on-chip ADC offers 12 single-ended channels at 10-bit resolution, while JTAG enables boundary scan and on-chip debugging. Self-programming Flash supports bootloader-based field updates, and the AUR suffix denotes industrial temperature range and tape-and-reel packaging. Typical applications include USB keyboards and mechanical keyboard controllers, Arduino Leonardo- and Micro-compatible boards, and battery-powered portable instruments where USB connectivity plus low power consumption matter. Design consideration: if you do not want to commit to an external 16 MHz crystal, the ATMEGA32U4RC variant integrates a USB-calibrated internal oscillator at the cost of reduced clock precision. This page synthesizes distributor pricing, drop-in alternatives, pinout data, and practical design notes not consolidated on the manufacturer product page.

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ATMEGA32U4-MU

ATMEGA32U4-MU - 8-Bit AVR USB MCU 16MHz 32KB | Microchip (Tape & Reel)

The Microchip Technology ATMEGA32U4-MU is a low-power 8-bit AVR RISC microcontroller with an integrated USB 2.0 full-speed/low-speed device controller, executing up to 16 MIPS at 16 MHz, with 32 KB self-programming Flash, 2.5 KB SRAM, and 1 KB EEPROM, housed in a 44-pad VQFN (7x7 mm) package with exposed pad. An 8-bit AVR microcontroller is a Harvard-architecture RISC processor that executes most instructions in a single clock cycle, delivering roughly 1 MIPS per MHz of core frequency. Within the power-management hierarchy of embedded systems, an MCU such as this combines the CPU core, program and data memory, USB transceiver, ADC, timers, and communication peripherals (USART, SPI, I2C) on one die, eliminating a separate USB interface chip in many designs. Key features include on-chip USB 2.0 full-speed (12 Mbps) device operation with hardware-based endpoint control, a 12-channel 10-bit analog-to-digital converter for direct sensor interfacing, and a JTAG interface for on-chip debug and boundary scan. Self-programming Flash enables in-field firmware updates via bootloader, and the 44-VQFN footprint keeps board area compact for USB HID devices. Technically, the device belongs to the ATmega16U4/32U4 family; it achieves near single-cycle instruction throughput thanks to the AVR RISC pipeline, and its USB section includes a dedicated PLL clock generator, on-chip 3.3V USB pad regulator, and interrupt-driven endpoint architecture widely proven in the Arduino Leonardo and Pro Micro ecosystems. Typical applications include USB HID keyboards and mice, custom game controllers and mechanical-keyboard matrices, USB-serial bridges, and battery-powered portable instruments that must enumerate directly over USB. The rich analog front end also suits sensor-datalogger designs that stream data over a virtual COM port. Design consideration: keep the UCAP capacitor on the internal USB regulator pin and route the D+/D- pair as a controlled 90-ohm differential pair; if using the internal RC oscillator with the RC-suffix parts, verify USB clock tolerance in the datasheet before dropping in variants. This page synthesizes verified distributor pricing, drop-in alternatives, pinout data, and practical design notes not consolidated in the manufacturer datasheet, with prices as of 2026-09-18.

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ATMEGA32U4-MUR

ATMEGA32U4-MUR - 8-Bit AVR USB MCU 16MHz 32KB | Microchip

The Microchip Technology ATMEGA32U4-MUR is a low-power 8-bit AVR RISC microcontroller with an integrated USB 2.0 full-speed/low-speed device controller, executing up to 16 MIPS at 16 MHz, with 32 KB self-programming Flash, 2.5 KB SRAM, and 1 KB EEPROM, housed in a 44-pad VQFN (7x7 mm) package with exposed pad. An 8-bit AVR microcontroller is a Harvard-architecture RISC processor that executes most instructions in a single clock cycle, delivering roughly 1 MIPS per MHz of core frequency. Within the power-management hierarchy of embedded systems, an MCU such as this combines the CPU core, program and data memory, USB transceiver, ADC, timers, and communication peripherals (USART, SPI, I2C) on one die, eliminating a separate USB interface chip in many designs. Key features include on-chip USB 2.0 full-speed (12 Mbps) device operation with hardware-based endpoint control, a 12-channel 10-bit analog-to-digital converter for direct sensor interfacing, and a JTAG interface for on-chip debug and boundary scan. Self-programming Flash enables in-field firmware updates via bootloader, and the 44-VQFN footprint keeps board area compact for USB HID devices. Technically, the device belongs to the ATmega16U4/32U4 family; it achieves near single-cycle instruction throughput thanks to the AVR RISC pipeline, and its USB section includes a dedicated PLL clock generator, on-chip 3.3V USB pad regulator, and interrupt-driven endpoint architecture widely proven in the Arduino Leonardo and Pro Micro ecosystems. Typical applications include USB HID keyboards and mice, custom game controllers and mechanical-keyboard matrices, USB-serial bridges, and battery-powered portable instruments that must enumerate directly over USB. The rich analog front end also suits sensor-datalogger designs that stream data over a virtual COM port. Design consideration: keep the UCAP capacitor on the internal USB regulator pin and route the D+/D- pair as a controlled 90-ohm differential pair; if using the internal RC oscillator with the RC-suffix parts, verify USB clock tolerance in the datasheet before dropping in variants. This page synthesizes verified distributor pricing, drop-in alternatives, pinout data, and practical design notes not consolidated in the manufacturer datasheet, with prices as of 2026-09-18.

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ATMEGA32U4RC-AU

ATMEGA32U4RC-AU - 8-bit AVR MCU, 16MHz, 32KB Flash, USB | Microchip

The Microchip Technology ATMEGA32U4RC-AU is a low-power 8-bit AVR RISC microcontroller with an integrated USB 2.0 full-speed/low-speed device controller, running at 16 MHz with 32 KB self-programming Flash, 2.5 KB SRAM and 1 KB EEPROM, housed in a 44-pin TQFP (10x10 mm, 0.8 mm pitch) surface-mount package. A microcontroller unit (MCU) is a single integrated circuit that combines a processor core, program memory, data memory and peripheral functions into one chip, forming the lowest layer of the embedded-systems hierarchy. The ATmega32U4 belongs to the AVR ATmega family of 8-bit RISC microcontrollers from Atmel, now Microchip Technology, and is distinguished within that family by its native USB 2.0 device capability, which removes the need for an external USB-to-serial converter chip. Key features include the advanced RISC architecture with 131 powerful instructions, most executing in a single clock cycle; a 12-channel 10-bit ADC for analog sensing; a JTAG interface for on-chip debugging; 32 general-purpose I/O lines across ports B, C, D, E and F; and a supply voltage range of 4.5 V to 5.5 V. The integrated USB controller supports full-speed (12 Mbps) and low-speed (1.5 Mbps) device operation, enabling direct USB HID keyboards, mice, MIDI devices and CDC serial applications. Architecturally, the 32 KB self-programming Flash supports bootloader firmware updates over USB, a capability famously leveraged by the Arduino Leonardo and Micro boards. Hardware multiply, three timers plus a high-speed timer/counter with PWM outputs (OC0A/OC0B/OC1A/OC1B/OC1C/OC3A/OC4A/OC4B/OC4D), USART, SPI, two-wire interface (I2C/TWI) and on-chip debug round out the peripheral set. Typical applications include USB HID peripherals (keyboards, gamepads, MIDI controllers), Arduino-compatible maker and educational boards, industrial control nodes, and USB-connected instrumentation. The 16 MHz clock and 5 V operation give robust noise margins for industrial environments. When designing with this device, note the 4.5 V to 5.5 V supply window: 3.3 V systems require the L grade or a level-shifting strategy. Place the UCAP capacitor on pin 6 close to the device for USB regulator stability, and route the D+/D- USB pair as a 90-ohm differential pair. This page synthesizes verified distributor data, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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ATMEGA32U4RC-AUR

ATMEGA32U4RC-AUR - 8-bit AVR MCU, 16MHz, 32KB Flash, USB | Microchip (Tape & Reel)

The Microchip Technology ATMEGA32U4RC-AUR is a low-power 8-bit AVR RISC microcontroller with an integrated USB 2.0 full-speed/low-speed device controller, running at 16 MHz with 32 KB self-programming Flash, 2.5 KB SRAM and 1 KB EEPROM, housed in a 44-pin TQFP (10x10 mm, 0.8 mm pitch) surface-mount package. A microcontroller unit (MCU) is a single integrated circuit that combines a processor core, program memory, data memory and peripheral functions into one chip, forming the lowest layer of the embedded-systems hierarchy. The ATmega32U4 belongs to the AVR ATmega family of 8-bit RISC microcontrollers from Atmel, now Microchip Technology, and is distinguished within that family by its native USB 2.0 device capability, which removes the need for an external USB-to-serial converter chip. Key features include the advanced RISC architecture with 131 powerful instructions, most executing in a single clock cycle; a 12-channel 10-bit ADC for analog sensing; a JTAG interface for on-chip debugging; 32 general-purpose I/O lines across ports B, C, D, E and F; and a supply voltage range of 4.5 V to 5.5 V. The integrated USB controller supports full-speed (12 Mbps) and low-speed (1.5 Mbps) device operation, enabling direct USB HID keyboards, mice, MIDI devices and CDC serial applications. Architecturally, the 32 KB self-programming Flash supports bootloader firmware updates over USB, a capability famously leveraged by the Arduino Leonardo and Micro boards. Hardware multiply, three timers plus a high-speed timer/counter with PWM outputs (OC0A/OC0B/OC1A/OC1B/OC1C/OC3A/OC4A/OC4B/OC4D), USART, SPI, two-wire interface (I2C/TWI) and on-chip debug round out the peripheral set. Typical applications include USB HID peripherals (keyboards, gamepads, MIDI controllers), Arduino-compatible maker and educational boards, industrial control nodes, and USB-connected instrumentation. The 16 MHz clock and 5 V operation give robust noise margins for industrial environments. When designing with this device, note the 4.5 V to 5.5 V supply window: 3.3 V systems require the L grade or a level-shifting strategy. Place the UCAP capacitor on pin 6 close to the device for USB regulator stability, and route the D+/D- USB pair as a 90-ohm differential pair. This page synthesizes verified distributor data, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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ATMEGA32U4RC-MU

ATMEGA32U4RC-MU - 8-bit AVR USB MCU 32KB 16MHz | Microchip

The Microchip Technology ATMEGA32U4RC-MU is a low-power 8-bit AVR RISC microcontroller with 32KB (16K x 16) self-programming ISP Flash, 2.5KB SRAM, 1KB EEPROM, an integrated USB 2.0 full-speed/low-speed device controller, and a 16 MHz maximum clock, housed in a 44-pin VQFN (7x7 mm) package with 32 general-purpose I/O lines. An 8-bit AVR microcontroller is a reduced-instruction-set (RISC) processor executing most of its 131 powerful instructions in a single clock cycle, positioned in the system hierarchy as the main embedded control IC between simple logic devices and 32-bit application processors. The ATmega32U4 family is widely known as the core of the Arduino Leonardo, where its native USB capability eliminates the external USB-to-serial converter required by ATmega328P-based boards. Key features include 32KB self-programming Flash for in-application firmware updates, a 12-channel 10-bit ADC for analog sensing, and an on-chip JTAG interface for on-chip debugging. The RC designation indicates the enhanced-reliability Flash variant qualified for industrial temperature ranges in a RoHS-compliant, green package. Technically, the device integrates a full-speed USB 2.0 transceiver and controller directly on the die, alongside UART, SPI, I2C (TWI) interfaces, multiple PWM channels and timer/counter resources. This single-chip integration reduces BOM cost and board area versus a two-chip MCU-plus-USB-UART solution. Typical applications include USB HID devices (keyboards, mice, game controllers), Arduino Leonardo-compatible and Pro Micro compatible hobby and maker boards, and industrial control panels requiring 4.5V to 5.5V single-supply operation. A key design consideration is supply voltage: the ATMEGA32U4RC-MU operates from 4.5V to 5.5V, so designs needing 3.3V operation must use the L variant instead. Keep the USB VBUS and UVcc supply paths properly decoupled for reliable enumeration. This page synthesizes distributor pricing, same-package drop-in alternatives, and practical design notes not found in the manufacturer datasheet, with pricing data as of 2026-09-18.

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ATMEGA32U4RC-MUR

ATMEGA32U4RC-MUR - 8-bit AVR USB MCU 32KB 16MHz | Microchip (Tape & Reel)

The Microchip Technology ATMEGA32U4RC-MUR is a low-power 8-bit AVR RISC microcontroller with 32KB (16K x 16) self-programming ISP Flash, 2.5KB SRAM, 1KB EEPROM, an integrated USB 2.0 full-speed/low-speed device controller, and a 16 MHz maximum clock, housed in a 44-pin VQFN (7x7 mm) package with 32 general-purpose I/O lines. An 8-bit AVR microcontroller is a reduced-instruction-set (RISC) processor executing most of its 131 powerful instructions in a single clock cycle, positioned in the system hierarchy as the main embedded control IC between simple logic devices and 32-bit application processors. The ATmega32U4 family is widely known as the core of the Arduino Leonardo, where its native USB capability eliminates the external USB-to-serial converter required by ATmega328P-based boards. Key features include 32KB self-programming Flash for in-application firmware updates, a 12-channel 10-bit ADC for analog sensing, and an on-chip JTAG interface for on-chip debugging. The RC designation indicates the enhanced-reliability Flash variant qualified for industrial temperature ranges in a RoHS-compliant, green package. Technically, the device integrates a full-speed USB 2.0 transceiver and controller directly on the die, alongside UART, SPI, I2C (TWI) interfaces, multiple PWM channels and timer/counter resources. This single-chip integration reduces BOM cost and board area versus a two-chip MCU-plus-USB-UART solution. Typical applications include USB HID devices (keyboards, mice, game controllers), Arduino Leonardo-compatible and Pro Micro compatible hobby and maker boards, and industrial control panels requiring 4.5V to 5.5V single-supply operation. A key design consideration is supply voltage: the ATMEGA32U4RC-MUR operates from 4.5V to 5.5V, so designs needing 3.3V operation must use the L variant instead. Keep the USB VBUS and UVcc supply paths properly decoupled for reliable enumeration. This page synthesizes distributor pricing, same-package drop-in alternatives, and practical design notes not found in the manufacturer datasheet, with pricing data as of 2026-09-18.

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ATMEGA48-15AZV

ATMEGA48-15AZV - 8-Bit AVR MCU, 4KB Flash, 32-TQFP | Microchip

The Microchip Technology ATMEGA48-15AZV is an automotive-grade 8-bit AVR RISC microcontroller with 4KB of self-programmable flash memory, 512B of SRAM, 256B of EEPROM, and 23 programmable I/O lines, housed in a 32-pin TQFP (7x7 mm) package rated for -40C to +125C operation. An 8-bit AVR microcontroller is a Harvard-architecture processor that executes most instructions in a single clock cycle, sitting at the entry level of the AVR ATmega family hierarchy below the ATmega88, ATmega168, and ATmega328. Microcontrollers of this class combine CPU, flash program memory, SRAM data memory, and peripheral functions such as timers, USART, SPI, I2C (TWI), and a 10-bit ADC on a single chip, making them the control backbone of embedded systems. Key features include throughput up to 16 MIPS at 16 MHz, two 8-bit timers and one 16-bit timer with PWM output, a 10-bit ADC with 6 multiplexed channels and internal bandgap reference, byte-oriented TWI (I2C) and full-duplex USART serial interfaces, and an SPI port supporting In-Circuit Serial Programming (ICSP). The picoPower-style sleep modes and brown-out detector support robust operation in electrically noisy automotive environments. The ATmega48 core implements 131 powerful instructions, with 32 general-purpose 8-bit registers directly connected to the ALU, enabling C-compiler-friendly code density. Hardware debug support is available through debugWIRE via the reset line, and programming uses the low-cost MPLAB SNAP or AVR ISP tools. Typical applications include automotive body and comfort electronics, sensor nodes, motor and LED control, industrial automation, and consumer appliance control boards where 4KB of flash is sufficient and extended temperature range is required. Design consideration: the 4KB flash has no bootloader-friendly split by default, so plan for external programming access; the -15AZ grade is qualified for automotive temperature ranges but verify AEC-Q100 status for your specific quality-flow requirement. This page synthesizes distributor pricing, drop-in same-family alternatives, pinout data, and practical design notes not consolidated in the manufacturer datasheet.

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ATMEGA48-15MT

ATMEGA48-15MT - 8-bit AVR MCU 4KB Flash 16MHz QFN-32 | Microchip

The Microchip Technology (Atmel) ATMEGA48-15MT is an 8-bit AVR RISC microcontroller with 4KB of In-System Programmable Flash, 16MHz maximum clock speed, and 2.7V to 5.5V supply range, housed in a 32-pin QFN (5x5 mm, 32M1-A) package with exposed pad. It is AEC-Q100 qualified for automotive environments. An 8-bit microcontroller is an integrated circuit that executes program instructions stored in on-chip Flash memory, processing data 8 bits at a time. Within the power-management and embedded-control hierarchy, the ATmega48 sits in the AVR ATmega family below the ATmega88 and ATmega168, which offer larger Flash and SRAM in the same pinout. Key features include the AVR enhanced RISC core executing most instructions in a single clock cycle for throughput approaching 1 MIPS per MHz, 4KB (2K x 16) self-programmable Flash, 512B SRAM, and 256B EEPROM. Peripheral set includes two 8-bit timers, one 16-bit timer, a 10-bit ADC, USI, and UART, plus 23 programmable I/O lines. The Harvard architecture with separate program and data buses, combined with single-cycle instruction execution, lets designers trade clock speed against power consumption precisely. In-System Programmable Flash allows firmware updates after PCB assembly, and the enhanced power-save modes support battery-operated nodes. Typical applications include automotive body electronics and sensor interfaces, industrial control and HVAC systems, and consumer appliance control boards. The -15MT speed grade and 85C industrial/automotive temperature range suit under-dash and enclosed equipment. Design consideration: with 4KB Flash, leave headroom for a bootloader, or program via ISP/debugWIRE and use the pin-compatible ATmega88/168 if code grows. This page synthesizes distributor pricing, same-package alternatives, and practical design notes not found in the manufacturer datasheet.

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ATMEGA48-15MT1

ATMEGA48-15MT1 - 8-bit AVR MCU 4KB 16MHz 32-QFN | Microchip

The Microchip Technology ATMEGA48-15MT1 (originally Atmel) is a low-power 8-bit AVR ATmega microcontroller with 4KB (2K x 16) In-System Programmable FLASH, 512 bytes of SRAM, and 256 bytes of EEPROM, executing at up to 16MHz in a 32-pin QFN (5x5 mm) exposed-pad package. An 8-bit AVR microcontroller is a Harvard-architecture RISC processor in which most instructions execute in a single clock cycle, yielding throughput approaching 1 MIPS per MHz. Within the power-management hierarchy, MCUs like the ATmega48 act as the central system controller, integrating CPU, program memory, data memory, timers, ADC, and communication peripherals on a single silicon die. Key features include the AVR enhanced RISC core delivering up to 16 MIPS at 16MHz, 23 general-purpose I/O lines, two 8-bit and one 16-bit timer/counter with PWM, a 6-channel 10-bit ADC, and USART, SPI, and I2C (TWI) serial interfaces. The 4KB self-programming FLASH supports In-System and Application programming for field firmware updates. Architecturally, the ATmega48/88/168 family shares a common AVR RISC core with 32 general-purpose registers directly connected to the ALU, combining rich instruction set density with single-cycle execution. On-chip debug via debugWIRE and a range of sleep modes (down to 0.1 uA in power-down at 1.8V class conditions) optimize energy versus speed. Typical applications include industrial control and sensor nodes, consumer appliances, embedded HVAC and lighting control, and small battery-powered instruments where a compact 5x5 mm QFN and low power matter. Design consideration: the -15 speed grade carries a 105C maximum ambient specification per Mouser listing; verify thermal budget when running 16MHz at elevated temperature, and decouple VCC and AVCC with 100nF ceramics close to the exposed pad. This page synthesizes distributor pricing, drop-in alternatives such as the ATMEGA48PA-MU, and practical design notes not found in the manufacturer datasheet.

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ATMEGA48-20AI

ATMEGA48-20AI - 8-bit AVR MCU, 4KB Flash, 20MHz | Microchip

The Microchip Technology (Atmel) ATMEGA48-20AI is a low-power 8-bit AVR RISC microcontroller with 4KB (2K x 16) in-system programmable Flash, 512B SRAM, and 256B EEPROM, delivering up to 20 MIPS throughput at 20MHz in a 32-pin TQFP (7x7 mm) package rated for the industrial temperature range of -40C to +85C. An 8-bit microcontroller is a single-chip processor that executes instructions, controls peripherals, and interfaces with sensors and actuators on a single silicon die. The ATMEGA48 belongs to the AVR family within the broader hierarchy of MCU -> embedded processor -> semiconductor, and integrates Flash program memory, SRAM data memory, EEPROM nonvolatile storage, and analog peripherals into one package, eliminating external memory chips in cost-sensitive embedded designs. Key features include the AVR enhanced RISC core executing 131 powerful instructions, most in a single clock cycle; 1.8V to 5.5V operation; an 8-channel 10-bit ADC; and three flexible timer/counters. The 32 general purpose working registers are directly connected to the arithmetic logic unit, allowing one-cycle access that boosts effective throughput far beyond classic CISC MCUs at the same clock rate. Technical depth: the ATMEGA48 supports self-programming Flash with an in-system programming (ISP) interface and includes debugWIRE, an on-chip debug system that uses only one pin, preserving I/O for the application. Peripherals include SPI and TWI (I2C-compatible) serial interfaces, a USART, analog comparator, and watchdog timer with its own oscillator. Typical applications include consumer appliance control, industrial sensor nodes, motor control front-ends, and battery-powered devices that exploit the AVR picoPower-class sleep modes and 1.8V low-voltage operation. Design consideration: the ATMEGA48-20AI is rated to 20MHz at 4.5V-5.5V; at lower supply voltages the maximum safe clock frequency derates, so verify the voltage-frequency curve in the datasheet before fixing the crystal. This page synthesizes distributor availability, same-family drop-in alternatives, and practical design notes not consolidated in the manufacturer datasheet.

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ATMEGA48-20AU

ATMEGA48-20AU - 8-bit AVR MCU 20MHz 4KB Flash | Microchip

The Microchip Technology ATMEGA48-20AU is an 8-bit AVR RISC-based microcontroller with 4 KB of in-system programmable Flash, 256 bytes of EEPROM, and 512 bytes of SRAM, operating at up to 20 MHz in a 32-pin TQFP (7x7 mm) surface-mount package. It provides 23 general-purpose I/O lines, three flexible timer/counters with compare modes, a 6-channel 10-bit ADC, a byte-oriented TWI (I2C) interface, an SPI serial port, and a programmable USART, delivering up to 20 MIPS throughput from its enhanced RISC architecture. The part operates from 4.5V to 5.5V at full 20 MHz speed (industrial grade -40C to +85C). A microcontroller (MCU) is a single-chip computer that integrates a CPU core, non-volatile program memory, working RAM, and configurable peripherals on one piece of silicon. The ATmega48 belongs to the 8-bit AVR family of microcontrollers, a subcategory of embedded controllers within the broader semiconductor hierarchy that bridges simple timers and complex MPU-based systems. By executing powerful instructions in a single clock cycle, AVR cores achieve throughput approaching 1 MIPS per MHz, giving designers a favorable performance-per-watt trade-off for cost-sensitive embedded products. Key features include 130 instructions (mostly single-cycle), 32 general-purpose working registers, fully static operation, six sleep modes (idle, ADC noise reduction, power-save, power-down, standby, extended standby), on-chip debug via debugWIRE, and a programmable watchdog timer with on-chip oscillator. The 6-channel 10-bit successive-approximation ADC provides 8 or 10 selectable resolutions and supports free-running or single-conversion modes. The internal calibrated RC oscillator and external crystal options simplify BOM cost. The TQFP-32 (7x7 mm, 0.8 mm pitch) package supports industrial 5V designs and is footprint-compatible with the wider ATmega48/88/168 family, allowing engineers to migrate upward to larger Flash sizes (8 KB / 16 KB) on the same PCB. In-system programming via SPI permits firmware updates on the finished PCB, while the boot loader support enables self-programming. Typical applications include industrial control panels, home appliance controllers, sensor data-acquisition nodes, low-cost motor drivers, USB-to-UART bridges, and hobbyist or educational embedded platforms built around the mature AVR GCC toolchain and Arduino-compatible cores such as MiniCore. When designing with this part, note that unlike the picoPower ATMEGA48PA variants (1.8V-5.5V operation), this classic 20 MHz version targets 5V systems; for battery designs below 4.5V, choose the ATMEGA48PA instead. This page synthesizes distributor pricing, drop-in same-footprint alternatives across the ATmega48/88/168/328 family, and practical design notes not found in the manufacturer datasheet.

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ATMEGA48-20MI

ATMEGA48-20MI - 8-bit AVR MCU 20MHz 4KB Flash VQFN-32 | Microchip

The Microchip Technology ATMEGA48-20MI is an 8-bit AVR RISC microcontroller delivering up to 20 MIPS throughput at 20 MHz, with 4 KB (2K x 16) self-programming ISP Flash memory, 512 bytes of SRAM, and 256 bytes of EEPROM, housed in a 32-pin VQFN (MLF) 5x5 mm package with exposed pad. An 8-bit AVR microcontroller is a single-chip processor that executes an advanced RISC instruction set (131 instructions, most in a single clock cycle) and integrates program Flash, data SRAM, EEPROM, timers, analog peripherals and I/O on one die. Within the power-management hierarchy, MCUs like the ATmega48 sit at the node level, reading sensors and driving actuators in embedded systems ranging from consumer appliances to industrial control. Key features include 23 general-purpose I/O lines, three flexible timer/counters with compare modes, an 8-channel 10-bit ADC, and debugWIRE on-chip debugging that uses only the reset line. The picoPower technology supports multiple sleep modes for battery-operated designs, and operation spans 1.8 V to 5.5 V at full 20 MHz speed grade. Architecturally, the AVR uses a Harvard structure with 32 general-purpose working registers directly connected to the ALU, allowing two independent instructions to execute in one cycle. Self-programming Flash enables in-system programming (ISP) and bootloader firmware updates in the field, while the 32-pin QFN footprint with exposed pad improves thermal and ground performance on compact two-layer PCBs. Typical applications include sensor nodes and battery-powered IoT devices (leveraging low-voltage 1.8 V operation and sleep modes), small motor and LED control boards using the three timers, and industrial consumer appliances where debugWIRE simplifies in-circuit development without a JTAG pod. When designing, remember the industrial temperature range (-40 C to +85 C) applies to the MI suffix, and Brown-out detection plus the internal 8 MHz RC oscillator eliminate external components at moderate clock rates; reserve the crystal option for UART-heavy or timing-critical designs. This page synthesizes distributor stock data, drop-in same-family alternatives, pinout detail, and practical design notes not consolidated in the manufacturer datasheet, with pricing freshness noted as of 2026-09-18.

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ATMEGA48-20MJ

ATMEGA48-20MJ - 8-bit AVR MCU 20MHz 4KB Flash VQFN-32 | Microchip

The Microchip Technology ATMEGA48-20MJ is a low-power 8-bit AVR RISC microcontroller with 4KB (2K x 16) of self-programming ISP Flash memory, 512 bytes of SRAM, 256 bytes of EEPROM, an 8-channel 10-bit ADC, and debugWIRE on-chip debug, delivering up to 20 MIPS at 20 MHz in a 32-pad VQFN/MLF (5x5 mm) package rated for the -40C to +85C industrial temperature range. A microcontroller unit (MCU) integrates a processor core, program memory, data memory, and peripherals on a single chip, sitting at the lowest level of the embedded systems hierarchy between discrete logic and application processors. The AVR architecture is a classic Harvard-architecture 8-bit family, executing most of its 131 instructions in a single clock cycle for high code efficiency. Key features include the advanced RISC AVR core with 32 general-purpose working registers, in-system programmable Flash with optional boot-code section, and a rich peripheral set: two 8-bit timers, one 16-bit timer, six PWM channels, an 8-channel 10-bit ADC, a programmable serial USART, an SPI interface, and a two-wire (I2C-compatible) serial interface. The device operates from 1.8V to 5.5V, enabling both battery-powered and 5V industrial designs. Technical depth: debugWIRE provides single-wire on-chip debugging over the RESET line, eliminating the need for a JTAG pod, while the self-programming Flash allows field firmware updates. Power management includes idle, ADC noise reduction, power-save, power-down, and standby sleep modes, with low quiescent consumption for battery applications. Typical applications include industrial control and automation nodes, consumer appliances, sensor interfaces exploiting the 10-bit ADC, and low-cost battery-powered devices. The green/RoHS VQFN-32 (5x5 mm) package suits compact, thermally efficient surface-mount designs. Design consideration: the suffix J denotes the MLF package and industrial temperature; verify VQFN footprint paste-stencil design, as the center die pad must be soldered to ground for reliable operation. This page synthesizes distributor pricing, pin-compatible drop-in alternatives including the ATmega48A/48PA/88/328P MLF variants, and practical design notes not found in the manufacturer datasheet.

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ATMEGA48-20PI

ATMEGA48-20PI - AVR 8-Bit MCU 20MHz 4KB Flash 28-PDIP | Microchip

The Atmel (Microchip Technology) ATMEGA48-20PI is a high-performance, low-power 8-bit AVR RISC microcontroller with 4KB (2K x 16) of In-System Programmable Flash, 512 bytes of SRAM, and 256 bytes of EEPROM, executing at up to 20 MIPS at 20MHz in a 28-pin PDIP package with industrial temperature range (-40C to +85C). An 8-bit microcontroller (MCU) is a single integrated circuit that contains a processor core, program memory, data memory, and peripherals such as timers, ADCs, and communication interfaces. Within the power-management and embedded-system hierarchy, the MCU sits at the heart of every embedded application, reading sensors, executing control logic, and driving actuators. The ATMEGA48 belongs to the AVR ATmega family, which uses a modified Harvard RISC architecture that executes most of its 131 powerful instructions in a single clock cycle. Key features include the AVR advanced RISC core with 32 general-purpose working registers, throughput of up to 20 MIPS at 20MHz, 1.8V to 5.5V wide supply operation, an 8-channel 10-bit ADC, debugWIRE on-chip debug system, and self-programming Flash program memory with 512-byte SRAM and 256-byte EEPROM for non-volatile data storage. Technically, the ATMEGA48 combines a fast single-cycle ALU with pipelined instruction fetch, achieving one MIPS per MHz. Its two-cycle hardware multiplier, three flexible timers (two 8-bit, one 16-bit with PWM), USART, SPI, and two-wire I2C (TWI) interfaces make it a complete system-on-chip for compact control tasks. In-System Programming (ISP) allows firmware updates without removing the device from the PCB. Typical applications include industrial automation and sensor nodes, home appliance control, hobby and educational projects such as Arduino-compatible boards (MiniCore supports the ATmega48), and battery-powered instruments where the 1.8V operation and low-power modes extend battery life. When designing with the ATMEGA48-20PI, note that full 20MHz speed is guaranteed only at 4.5V to 5.5V; at lower supply voltages the maximum clock frequency must be derated per the datasheet frequency-versus-voltage curve. This page synthesizes distributor pricing, drop-in alternatives, pinout data, and practical design notes not found in the manufacturer datasheet alone.

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ATMEGA48-20PJ

ATMEGA48-20PJ - 8-Bit AVR MCU, 20MHz, 4KB Flash | Microchip

The Microchip Technology ATMEGA48-20PJ is an 8-bit AVR RISC microcontroller with 20 MHz maximum clock frequency, 4KB (2K x 16) ISP self-programming Flash memory, and 512 bytes of SRAM, housed in a 28-pin PDIP (28-PDIP) through-hole package. It executes up to 20 MIPS at 20 MHz thanks to its single-cycle RISC architecture with 131 powerful instructions. A microcontroller (MCU) is a single integrated circuit that combines a processor core, program memory, data memory, and peripherals such as timers, ADCs, and communication interfaces. The ATmega48 belongs to the AVR family of 8-bit MCUs, which sits within the broader hierarchy of microcontrollers under the semiconductor and embedded processor taxonomy. AVR MCUs are widely used in embedded systems because they combine low power with a simple, easy-to-program architecture supported by AVR GCC toolchains and Arduino-compatible ecosystems such as MiniCore. Key features include 23 general-purpose I/O lines, 32 general-purpose working registers, three flexible timer/counters with compare modes, an 8-channel 10-bit ADC, and a two-wire serial interface (TWI/I2C) plus SPI and USART serial ports. The device operates from 1.8V to 5.5V and includes DebugWIRE on-chip debug for low-cost debugging over the RESET pin. A watchdog timer, internal calibrated RC oscillator, and picoPower sleep modes round out the low-power feature set. Architecturally, the ATmega48 uses a Harvard-structure AVR core with single-cycle instruction execution, self-programming Flash for in-system updates, and 256 bytes of on-chip EEPROM for non-volatile parameter storage. The 4KB Flash accommodates compact firmware typical of sensor nodes, motor control loops, and simple human-machine interfaces. Typical applications include industrial control boards, battery-powered sensor nodes, appliance controls, and hobby/education platforms where DIP mounting supports socketed, replaceable designs. The 28-PDIP package is especially valuable for prototyping and legacy repair. Design consideration: program the clock fuse bits carefully; switching from the internal 8 MHz RC oscillator to an external 20 MHz crystal requires setting CKSEL/SUT fuses, and an incorrect setting can brick the device until a high-voltage programmer is used. This page synthesizes distributor pricing, drop-in alternatives, pinout data, and practical design notes not found in the manufacturer datasheet.

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ATMEGA4808-AFR

ATMEGA4808-AFR - 8-bit AVR MCU 20MHz 48KB Flash TQFP-32 | Microchip

The Microchip Technology ATMEGA4808-AFR is an 8-bit megaAVR 0-series functional safety (FuSa) microcontroller with an AVR processor running at up to 20 MHz, 48 KB Flash, 6 KB SRAM, and 256 bytes of EEPROM, housed in a 32-pin TQFP (7x7 mm) package. It operates from a 1.8V to 5.5V supply and integrates a 12-channel, 10-bit ADC. A microcontroller (MCU) is a single-chip computer that combines a processor core, memory, and peripherals such as timers, serial interfaces, and analog-to-digital converters. The megaAVR 0-series sits within the broader AVR 8-bit family, which sits under the general microcontroller (embedded processor) category. Unlike general-purpose processors, MCUs execute dedicated control tasks in embedded systems, industrial automation, and consumer devices. Key features of the ATMEGA4808-AFR include a hardware multiplier in the AVR core for efficient arithmetic, 20 MHz maximum clock frequency from an internal oscillator, a 12-channel 10-bit ADC, and Functional Safety (FuSa) qualification supporting safety-oriented designs. The -AFR ordering code denotes the 32-pin TQFP package, -40C to +125C industrial operating range, and tape-and-reel packaging. Technically, the megaAVR 0-series uses the latest AVR core with a two-stage pipeline, peripheral-rich architecture with configurable custom logic (CCL), event system, and multiple USART, SPI, and TWI (I2C) serial interfaces. The wide 1.8V-5.5V supply range allows direct operation from lithium cells, 3.3V logic, or 5V industrial rails without a dedicated regulator. Typical applications include industrial control and factory automation nodes, motor control and sensor interfaces using the 10-bit ADC, and consumer appliances or HVAC controllers where wide-voltage tolerance reduces system cost. A key design consideration: use the internal oscillator to save BOM cost, but verify ADC clock configuration (prescaler) for accurate 10-bit conversions across the 1.8V-5.5V range. This page synthesizes distributor pricing, drop-in family alternatives, and practical design notes not found in the manufacturer datasheet.

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ATMEGA4808-AUR

ATMEGA4808-AUR - 8-Bit AVR MCU 20MHz 48KB Flash | Microchip

The Microchip Technology ATMEGA4808-AUR is an 8-bit AVR megaAVR 0-series microcontroller with a hardware multiplier, running at up to 20 MHz and offering 48 KB (24K x 16) Flash, 6 KB SRAM, and 256 bytes of EEPROM in a 32-pin TQFP (7x7 mm) package with tape-and-reel delivery. A microcontroller unit (MCU) integrates a processor core, memory, and peripherals on a single silicon die, forming the lowest level of the embedded-system hierarchy (system -> embedded computer -> MCU -> CPU core). The megaAVR 0-series represents Microchip's latest generation of the classic AVR architecture, adding modern peripherals while preserving AVR ease of use and the huge AVR developer ecosystem. Key features include the AVR RISC core with a hardware multiplier executing most instructions in a single clock cycle, 48 KB of in-system-programmable Flash, 6 KB of SRAM for data and stacks, 256 bytes of EEPROM for non-volatile calibration and settings storage, and multiple serial peripherals (USART, SPI, TWI/I2C) plus 10-bit ADC and analog comparators. The device also carries Functional Safety (FuSa) support, easing IEC 61508-oriented development. Technically, the megaAVR 0-series uses the latest AVR core with an enhanced event system, configurable custom logic (CLC), and low-power sleep modes, enabling deterministic real-time control while maintaining very low active and sleep current. The wide operating voltage supports both 3.3V and 5V systems. Typical applications include industrial control and automation nodes, home appliances, motor-adjacent sensing and sequencing logic, and general-purpose embedded boards, including Arduino-compatible designs supported by the MegaCoreX community package. Design consideration: the ATMEGA4808-AUR is programmed via the Unified Program and Debug Interface (UPDI), so plan a UPDI header in your PCB layout rather than legacy ISP headers used by older ATmega328 designs. This page synthesizes distributor pricing, drop-in same-family alternatives, and practical design notes not found in the manufacturer datasheet.

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製品 (38,000+)

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ATMEGA32M1-AU - 8-bit AVR MCU 32KB Flash 16MHz TQFP-32 | Microchip

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ATMEGA32U2-MU - 8-bit AVR USB MCU 16MHz 32KB Flash | Microchip

ATMEGA32U4 - 8-bit AVR MCU, 32KB Flash, USB 2.0 | Microchip

ATMEGA32U4-AU - 8-bit AVR MCU, 16MHz, 32KB Flash, USB | Microchip

ATMEGA32U4-AUR - 8-Bit AVR MCU, USB, 16MHz | Microchip

ATMEGA32U4-MU - 8-Bit AVR USB MCU 16MHz 32KB | Microchip (Tape & Reel)

ATMEGA32U4-MUR - 8-Bit AVR USB MCU 16MHz 32KB | Microchip

ATMEGA32U4RC-AU - 8-bit AVR MCU, 16MHz, 32KB Flash, USB | Microchip

ATMEGA32U4RC-AUR - 8-bit AVR MCU, 16MHz, 32KB Flash, USB | Microchip (Tape & Reel)

ATMEGA32U4RC-MU - 8-bit AVR USB MCU 32KB 16MHz | Microchip

ATMEGA32U4RC-MUR - 8-bit AVR USB MCU 32KB 16MHz | Microchip (Tape & Reel)

ATMEGA48-15AZV - 8-Bit AVR MCU, 4KB Flash, 32-TQFP | Microchip

ATMEGA48-15MT - 8-bit AVR MCU 4KB Flash 16MHz QFN-32 | Microchip

ATMEGA48-15MT1 - 8-bit AVR MCU 4KB 16MHz 32-QFN | Microchip

ATMEGA48-20AI - 8-bit AVR MCU, 4KB Flash, 20MHz | Microchip

ATMEGA48-20AU - 8-bit AVR MCU 20MHz 4KB Flash | Microchip

ATMEGA48-20MI - 8-bit AVR MCU 20MHz 4KB Flash VQFN-32 | Microchip

ATMEGA48-20MJ - 8-bit AVR MCU 20MHz 4KB Flash VQFN-32 | Microchip

ATMEGA48-20PI - AVR 8-Bit MCU 20MHz 4KB Flash 28-PDIP | Microchip

ATMEGA48-20PJ - 8-Bit AVR MCU, 20MHz, 4KB Flash | Microchip

ATMEGA4808-AFR - 8-bit AVR MCU 20MHz 48KB Flash TQFP-32 | Microchip

ATMEGA4808-AUR - 8-Bit AVR MCU 20MHz 48KB Flash | Microchip