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ATMEGA48PV-10MMU

ATMEGA48PV-10MMU - 8-bit AVR MCU 4KB Flash 10MHz | Microchip

The Microchip Technology ATMEGA48PV-10MMU is an 8-bit AVR RISC microcontroller with 4 KB ISP FLASH, 256 B EEPROM, 512 B SRAM, and 23 general-purpose I/O lines, operating at up to 10 MHz in a 28-pin 4x4 mm VQFN (MLF) package with 0.45 mm pitch. An 8-bit microcontroller is an integrated circuit that executes program instructions on 8-bit-wide data words, integrating a processor core, program memory, data memory, timers, and peripherals onto a single chip. The AVR ATmega family sits within the broader hierarchy of microcontrollers -> embedded processors -> semiconductors, and is widely used in embedded systems where low cost, low power, and in-system programmability are essential. Key features of the ATMEGA48PV-10MMU include the picoPower technology suite for ultra-low sleep-mode consumption, an advanced RISC architecture with 131 mostly single-cycle instructions, three flexible timer/counters with compare modes, and 6-channel 10-bit ADC functionality. The PV suffix denotes operation across a 1.8V to 5.5V supply range at up to 10 MHz, giving design flexibility for battery-powered and 5V industrial systems alike. Technical depth: the AVR core executes most instructions in a single clock cycle, achieving up to 10 MIPS at 10 MHz. Peripherals include SPI, TWI (I2C-compatible), and USART serial interfaces, plus internal and external interrupt sources. In-system programmable FLASH supports read-while-write, allowing firmware updates in the field via SPI or a bootloader. The FindIC listing confirms the 4x4 MLF industrial-temperature, green (RoHS) package with 1.8V capability. Typical applications include battery-powered sensor nodes, consumer appliance control, HVAC and motor control interfaces, and low-cost industrial automation where 4 KB of program memory and 23 I/O lines are sufficient. Design consideration: verify that your code footprint stays below 4 KB FLASH and 512 B SRAM; if the design may grow, select pin-compatible ATMEGA88 or ATMEGA168 family members sharing the identical 28-pin footprint. This page synthesizes verified distributor data, drop-in alternatives, comparison tables, and practical design notes not found in the manufacturer datasheet, with pricing as of 2026-09-18.

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ATMEGA48PV-10MUR

ATMEGA48PV-10MUR - 8-bit AVR MCU 4KB Flash 10MHz VQFN-32 | Microchip

The Microchip Technology ATMEGA48PV-10MUR is a high-performance, low-power 8-bit AVR RISC picoPower microcontroller with 4KB ISP flash memory, 256B EEPROM, 512B SRAM, 23 general-purpose I/O lines, and a 10MHz maximum clock speed, housed in a 32-pin VQFN (5x5 mm) package rated for the industrial temperature range. An 8-bit AVR ATmega microcontroller is a Harvard-architecture RISC processor that executes most of its 131 instructions in a single clock cycle, combining the flash program memory, EEPROM data memory, SRAM, timers, ADC, and serial peripherals on a single chip. Within the power-management hierarchy, it functions as the system-level controller for embedded products, sitting above discrete logic and below 32-bit application processors. Key features of the ATMEGA48PV-10MUR include the picoPower technology suite for microamp-level sleep currents, an operating voltage range of 1.8V to 5.5V that supports single-cell battery and 5V logic designs, three flexible timer/counters with compare modes, a 10-bit ADC, and SPI and TWI (I2C) serial interfaces. The device is in-system programmable via SPI, enabling firmware updates without removing the chip from the PCB. The advanced RISC architecture provides 32 general-purpose working registers directly connected to the ALU, allowing two independent registers to be accessed in one instruction. The picoPower feature set includes idle, ADC noise reduction, power-save, power-down, and standby sleep modes with wakeup sources such as pin-change interrupts and the watch-dog timer, making the device well suited to battery-powered designs that spend most of their life asleep. Typical applications include battery-powered sensor nodes, industrial control panels, home automation devices, LED lighting controllers, and consumer appliance user interfaces where low standby current and 5V tolerance matter. The 5x5 mm VQFN footprint conserves board area in compact designs. A key design consideration is that flash density is only 4KB; if firmware grows beyond this limit, pin-compatible upgrades to the ATmega88PA or ATmega328P in the same 32-VQFN footprint preserve the layout investment. Note also that a newer device, the ATMEGA48PA, is recommended by Microchip for new designs. This page synthesizes distributor pricing, drop-in alternatives, pinout data, and practical design notes not found in the manufacturer datasheet.

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ATMEGA48V-10AI

ATMEGA48V-10AI - 8-Bit AVR MCU 4KB Flash 10MHz | Microchip

The Microchip Technology ATMEGA48V-10AI is an 8-bit AVR RISC microcontroller with 4 KB of in-system programmable Flash, 512 bytes SRAM, and 256 bytes EEPROM, rated for 10 MHz operation at 1.8 V to 5.5 V and supplied in a 32-pin TQFP (7x7 mm) package. It is the 1.8 V low-voltage, 10 MHz speed-grade member of the ATmega48/88/168 family, delivering up to 10 MIPS throughput with 131 single-cycle-capable instructions. An 8-bit microcontroller is a single-chip computer that integrates a CPU, program memory, data memory, and peripherals such as timers, serial interfaces, and analog-to-digital converters. Within the semiconductor taxonomy, the ATmega48V sits at microcontroller -> 8-bit MCU -> embedded processor -> integrated circuit, and it is built on the AVR enhanced RISC architecture that executes most instructions in a single clock cycle, allowing the designer to trade processing speed against power consumption. Key differentiators include 4 KB ISP Flash with 10,000 write/erase cycles, a true 10-bit ADC with 8 multiplexed channels, a programmable watchdog timer with separate on-chip oscillator, and debugWIRE on-chip debug capability. The device also integrates two 8-bit timers, one 16-bit timer, a USART, SPI, and a byte-oriented two-wire serial interface, plus an internal calibrated RC oscillator that removes the need for an external clock in many designs. The ATmega48V uses picoPower technology to minimize active and standby current, making it well suited to battery-powered and always-on embedded systems. Its 1.8 V minimum supply allows direct operation from two AA cells or a single Li-ion cell with a low-dropout regulator, while the 5.5 V maximum keeps it compatible with legacy 5 V logic. Typical applications include battery-powered sensor nodes, consumer appliance control panels, motor control front ends, and low-cost industrial instrumentation. The 32-pin TQFP footprint is shared across the ATmega48/88/168 family, so firmware and PCB layouts can be scaled by Flash size without redesign. When designing with this device, decouple VCC and AVCC with 100 nF ceramic capacitors placed close to the pins, and keep the 32 kHz crystal or resonator traces short. The debugWIRE interface shares the RESET pin, so reserve a programming header footprint if field re-flashing is required. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes that are not consolidated in the manufacturer datasheet, giving engineers a single reference for selection, cross-referencing, and procurement of the ATMEGA48V-10AI.

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ATMEGA48V-10AUR

ATMEGA48V-10AUR - 8-Bit AVR MCU 4KB Flash 10MHz | Microchip

The Microchip Technology ATMEGA48V-10AUR is an 8-bit AVR RISC microcontroller with 4 KB in-system programmable Flash, 512 B SRAM and 256 B EEPROM, rated for 10 MHz operation at 1.8 V to 5.5 V, supplied in a 32-pin TQFP (7x7 mm) package. It delivers up to 10 MIPS throughput at 10 MHz and integrates 23 general-purpose I/O lines, an 8-channel 10-bit ADC, and debugWIRE on-chip debug. An AVR microcontroller is a single-chip computer built on the enhanced RISC architecture, combining program memory, data memory, peripherals and I/O on one die. Within the taxonomy it sits as AVR MCU -> 8-bit microcontroller -> microcontroller -> embedded processor -> semiconductor. The ATmega48V family is the low-voltage variant of the classic ATmega48 line, designed for battery-powered and 1.8 V logic systems where the standard 2.7 V minimum would be too restrictive. Key differentiators include 1.8 V to 5.5 V operation, 10 MHz maximum clock at 1.8 V, 4 KB Flash with 10,000 write/erase cycles, 256 B EEPROM with 100,000 cycles, and picoPower technology that keeps active current low. The 32-TQFP (7x7) footprint is shared across the ATmega48/88/168 family, so code and layout can scale without PCB changes. The core executes 131 instructions, most in a single clock cycle, with 32 general-purpose working registers eliminating accumulator bottlenecks. Three flexible timer/counters with compare modes, a programmable watchdog with separate oscillator, an on-chip analog comparator, and a byte-oriented two-wire serial interface (I2C compatible) round out the peripheral set. Typical applications include battery-powered sensor nodes, portable instrumentation, motor control front-ends, consumer appliance control panels, and legacy 5 V designs migrating to lower supply rails. The wide 1.8 V to 5.5 V range allows direct interfacing with both 3.3 V and 5 V peripherals. A key design consideration is that the 10 MHz rating applies at 1.8 V; at 5 V the same silicon can be clocked faster, but the -10 speed grade is specified for 10 MHz. Decouple VCC and AVCC with 100 nF ceramic capacitors placed within a few millimeters of the pins, and use a separate LC filter on AVCC when the ADC is used for precision measurement. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, giving engineers a single reference for selection, replacement and layout decisions.

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ATMEGA48V-10MI

ATMEGA48V-10MI - 4KB Flash 1.8V AVR MCU QFN-32 | Microchip

The Microchip (Atmel) ATMEGA48V-10MI is an 8-bit AVR RISC microcontroller with 4KB of self-programming ISP Flash memory, 512B SRAM, 256B EEPROM, and an 8-channel 10-bit ADC, operating from 1.8V to 5.5V at up to 10MHz (up to 10 MIPS throughput) in a 32-pad VFQFN/MLF exposed-pad package. The MI suffix indicates industrial temperature range (-40C to +85C). An 8-bit AVR microcontroller is a Harvard-architecture processor that executes most of its 131 powerful instructions in a single clock cycle. Within the power-management hierarchy, microcontrollers sit at the system-control layer, integrating CPU, program memory, data memory, timers, analog conversion, and serial interfaces into a single IC, reducing board complexity versus discrete MCU-plus-logic solutions. Key features include the advanced RISC core with 32 general-purpose 8-bit working registers, three flexible timer/counters with compare modes and PWM, byte-oriented Two-Wire Interface (I2C), USART serial port, and SPI. The low-voltage V-variant operates down to 1.8V, making it well suited to battery-powered designs where a 5V rail is not available. Technical depth: the device features debugWIRE on-chip debugging over the RESET pin, a 10-bit successive-approximation ADC with internal 1.1V bandgap reference option, and self-programming Flash enabling field updates. The picoPower-class sleep modes (idle, ADC noise reduction, power-save, power-down) achieve low standby consumption. Typical applications include battery-powered sensor nodes, industrial control and metering, small appliance and consumer product control boards, and lighting control - anywhere 4KB of code, low voltage, and a compact 5x5 mm QFN footprint suffice. Design consideration: reserve PC6/RESET and the Two-Wire/SPI pins early; programming uses SPI (ISP) on PB3-PB5, which must remain accessible on the PCB for factory programming and debugWIRE. This page synthesizes distributor pricing context, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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ATMEGA48V-10MMH

ATMEGA48V-10MMH - 8-Bit AVR MCU 4KB Flash 10MHz QFN-28 | Microchip

The Microchip Technology ATMEGA48V-10MMH is an 8-bit AVR ATmega RISC microcontroller with 4KB (2K x 16) ISP FLASH memory, 256B EEPROM, 512B SRAM, and a maximum clock speed of 10MHz, housed in a 28-pin VQFN (4x4 mm) package with exposed pad. It operates from a wide 1.8V to 5.5V supply, making it suitable for low-voltage and battery-powered designs. A microcontroller (MCU) is a single-chip computer integrating a CPU core, program memory, data memory, and peripherals such as timers, ADCs, and communication interfaces. Within the power-management and embedded-system hierarchy, an 8-bit MCU like the AVR ATmega family occupies the entry-to-mid tier of embedded processing, sitting above discrete logic and below 32-bit ARM cores, and is widely used where cost, power efficiency, and ease of programming matter more than raw compute throughput. Key features include the AVR Advanced RISC architecture with 131 powerful instructions, most executing in a single clock cycle; 32 general-purpose 8-bit working registers; 23 general-purpose I/O lines; and three flexible timer/counters with compare modes and PWM. A 10-bit ADC with up to 8 single-ended channels (6 external on the 28-pin package, plus 2 differential channels via ADC6/ADC7 available on QFN packages) and an internal bandgap reference enable accurate analog sensing. The picoPower technology platform offers multiple sleep modes (Idle, ADC Noise Reduction, Power-save, Power-down, Standby, and Extended Standby) with very low quiescent consumption in Power-down mode, which is essential for coin-cell and energy-harvesting products. The V-suffix voltage rating (1.8V-5.5V) and H-suffix automotive-grade temperature qualification extend operation into harsh environments, and the part is manufactured in green, RoHS-compliant packaging. Programming and debugging occur in-system via SPI using standard Microchip tools (ISP, debugWIRE via the RESET line, and parallel HV programming). Typical applications include battery-powered sensor nodes, small industrial control and monitoring boards, automotive body and comfort modules, consumer appliance controls, and RS-485/UART-based communication peripherals where a compact 4x4 mm footprint and low-voltage operation are required. A key design consideration: the 10MHz maximum clock frequency must be respected across the full supply range; the ATmega48 clock-versus-voltage safety margin means that running near 1.8V requires conservative speed, andBrown-out detection should be enabled to guarantee code integrity during supply droops. This page synthesizes verified distributor pricing, drop-in alternatives, pinout data, and practical design notes not consolidated in the manufacturer datasheet, providing engineers with a complete selection and sourcing reference for the ATMEGA48V-10MMH.

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ATMEGA48V-10MMU

ATMEGA48V-10MMU - 8-bit AVR MCU, 4KB Flash, 10MHz, 1.8-5.5V | Microchip

The Microchip Technology ATMEGA48V-10MMU is a picoPower 8-bit AVR ATmega microcontroller with 4 KB ISP flash memory, 256 B EEPROM, 512 B SRAM, and a 10 MHz maximum clock speed, operating from 1.8 V to 5.5 V in a 28-pin VQFN (4x4 mm) package. An 8-bit AVR microcontroller is a single-chip RISC processor with integrated program flash, SRAM, EEPROM, and peripherals such as timers, ADC, and serial interfaces. Within the power-management hierarchy of an embedded system, the MCU sits at the control layer, executing user firmware that supervises sensors, actuators, and communication links. The ATmega family achieves throughput approaching 1 MIPS per MHz by executing most of its 131 instructions in a single clock cycle. Key features of the ATMEGA48V-10MMU include 23 general-purpose I/O lines, 32 general-purpose working registers, three flexible timer/counters with compare modes, an internal oscillator, and a 10-bit ADC. The 'V' grade supports a wide 1.8 V to 5.5 V supply range, and Atmel picoPower technology delivers low sleep-mode currents for battery-operated designs. In-System Programming (ISP) via the SPI interface allows firmware updates without removing the device from the board. Architecturally, the AVR uses a Harvard structure with separate program and data buses, enabling single-cycle instruction fetch and execution. The device also supports two-wire (I2C) and USART serial interfaces, interrupt-driven operation, and multiple sleep modes including power-down and power-save for energy-sensitive applications. Typical applications include battery-powered sensor nodes, small appliance and HVAC control boards, industrial remote monitoring, and consumer electronics requiring a compact 4x4 mm footprint with industrial temperature range of -40C to +85C. A key design consideration: the 4 KB flash limits complex firmware, so engineers should budget code size carefully or step up to the pin-compatible ATmega88V/168V with larger flash. Also note the datasheet recommends the newer ATMEGA48PA for new designs. This page synthesizes distributor pricing, drop-in alternatives, pinout data, and practical design notes not found in the manufacturer datasheet.

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ATMEGA48V-10MMUR

ATMEGA48V-10MMUR - AVR 8-bit MCU 4KB Flash 10MHz | Microchip

The Microchip Technology ATMEGA48V-10MMUR is an 8-bit AVR ATmega microcontroller with 4KB (2K x 16) of In-System Programmable Flash, 512B SRAM, 256B EEPROM, and up to 10 MHz clock speed (10 MIPS throughput), operating from a 1.8V to 5.5V supply in a 28-pad VQFN (4x4 mm, 0.45 mm pitch) package. An 8-bit AVR microcontroller is a Harvard-architecture RISC processor that executes most of its 131 powerful instructions in a single clock cycle. MCUs of this class sit at the entry level of the 8-bit microcontroller hierarchy (microcontroller -> embedded processor -> semiconductor), combining CPU, program Flash, data SRAM, non-volatile EEPROM, peripherals, and I/O on one die, making them the workhorse of cost-sensitive embedded designs. Key features include the AVR Advanced RISC architecture with 32 general-purpose 8-bit registers, an 8-channel 10-bit ADC, an on-chip debugWIRE debug system, and In-Circuit Serial Programming (ICSP) via two I/O pins plus the reset line. The V suffix denotes the extended 1.8V to 5.5V low-voltage operating range, and the MMUR suffix denotes the 28-VQFN surface-mount package supplied in Tape and Reel for automated assembly. The die integrates hardware peripherals including three timers (two 8-bit and one 16-bit), a programmable serial USART, SPI master/slave interface, two-wire (I2C-compatible) interface, analog comparator, and watchdog timer with separate on-chip oscillator. Self-programming Flash supports bootloader firmware updates in the field. Typical applications include consumer appliance control, battery-powered sensor nodes where the low 1.8V floor and low-power modes extend battery life, and industrial auxiliary boards requiring small 4x4 mm footprint and reliable surface-mount assembly. When designing with this part, budget for its 10 MHz maximum clock (up to 20 MHz is available in the ATMEGA48PA variant family) and provide decoupling on both VCC and AVCC pins for optimal ADC accuracy. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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ATMEGA48V-10MU

ATMEGA48V-10MU - 4KB Flash 10MHz AVR MCU 1.8V | Microchip

The Microchip Technology ATMEGA48V-10MU is a low-power 8-bit AVR ATmega microcontroller with 4KB (2K x 16) In-System Programmable FLASH, 256B EEPROM, 512B SRAM, and a 10MHz maximum clock speed, operating from 1.8V to 5.5V in a 32-pin VQFN (5x5 mm) package. A microcontroller (MCU) is a compact integrated circuit that combines a processor core, non-volatile program memory, data memory, and peripheral functions on a single die. The ATMEGA48V-10MU belongs to the AVR ATmega family of RISC microcontrollers, which sits within the broader hierarchy of embedded processors and semiconductor ICs. AVR 8-bit MCUs are widely used because their single-cycle instruction execution delivers up to 10 MIPS throughput at 10MHz for this grade. Key features include the Advanced RISC architecture with 131 powerful instructions, most executed in a single clock cycle, 32 x 8 general purpose working registers, and an on-chip 2-cycle hardware multiplier. The device provides 23 general purpose I/O lines, three flexible timer/counters with compare modes, and picoPower technology for ultra-low sleep-mode current consumption, making it well suited to battery-powered designs. The picoPower technology platform reduces power consumption across all sleep modes, which is the primary reason engineers select the V voltage-grade variant over standard ATmega48 parts. The 1.8V to 5.5V wide supply range allows direct operation from single-cell lithium coin batteries or two-cell alkaline stacks without a regulator. Typical applications include battery-powered sensors, consumer appliances, industrial control nodes, and handheld instruments where low quiescent current and wide voltage tolerance matter more than raw clock speed. When designing with this device, note the 10MHz speed grade constraint: the V variant is specified to 10MHz, so designs requiring 20MHz should use the ATMEGA48-20MU instead. This page synthesizes distributor pricing, drop-in alternatives, pinout data, and practical design notes not consolidated in the manufacturer datasheet.

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ATMEGA48V-10PJ

ATMEGA48V-10PJ - 4KB Flash 10MHz AVR MCU 28-DIP | Microchip

The Microchip Technology ATMEGA48V-10PJ is an 8-bit AVR ATmega microcontroller with 4KB (2K x 16) self-programming Flash program memory, 512 bytes SRAM, and 256 bytes EEPROM, executing up to 10 million instructions per second (MIPS) at its 10 MHz maximum clock speed in a 28-pin PDIP (0.300 inch, 7.62 mm) package. The V suffix denotes extended low-voltage operation from 1.8 V to 5.5 V, making this one of the few through-hole AVRs rated for single-cell lithium and two-cell battery-powered designs. An 8-bit AVR microcontroller is a reduced-instruction-set (RISC) MCU that executes most of its 131 powerful instructions in a single clock cycle. Within the power management and embedded hierarchy, the ATmega family sits in the low-power general-purpose MCU class, descended from the original AVR architecture now manufactured by Microchip Technology after its acquisition of Atmel. Key features include an advanced RISC architecture with 32 general-purpose 8-bit working registers, an 8-channel 10-bit ADC, three timers (two 8-bit, one 16-bit), and I2C, SPI, and UART/USART serial interfaces. The device supports In-System Programmable (ISP) Flash and DebugWire on-chip debugging over a single wire. Technically, the ATMEGA48V-10PJ combines self-programming Flash with a Harvard-architecture pipeline, delivering deterministic single-cycle execution that simplifies real-time firmware timing analysis. Its low-voltage rating (1.8 V minimum) extends battery life in coin-cell and alkaline-powered products where 5 V-only parts cannot operate. Typical applications include battery-powered sensors, hobby and educational breadboard projects benefiting from the through-hole DIP-28 footprint, small appliance control boards, and low-cost industrial monitoring nodes using the UART for telemetry. For design, remember the 10 MHz speed grade applies across the 1.8-5.5 V range, but verify Brown-out Detector (BOD) settings when operating below 2.7 V, and note the DIP-28 footprint supports zero-insertion-force sockets for rapid prototyping. This page synthesizes distributor pricing, drop-in family alternatives, complete pinout data, and practical design notes not found in a single manufacturer datasheet.

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ATMEGA48V-10PU

ATMEGA48V-10PU - 4KB Flash AVR MCU, 1.8V, 10MHz | Microchip

The Microchip Technology ATMEGA48V-10PU (originally Atmel) is a low-power 8-bit AVR RISC microcontroller with 4KB of In-System Programmable (ISP) Flash memory, 256B of EEPROM, 512B of SRAM, and 23 general-purpose I/O lines, housed in a 28-pin 0.3-inch PDIP (28-PDIP) through-hole package. The V suffix denotes a 1.8V to 5.5V operating voltage range at up to 10MHz clock speed, and the industrial temperature suffix supports -40C to +85C operation. An 8-bit AVR microcontroller is a single-chip computer based on the AVR enhanced RISC architecture, executing most instructions in a single clock cycle for throughput close to 1 MIPS per MHz. MCUs sit at the bottom of the embedded processing hierarchy (microcontroller -> embedded processor -> semiconductor), integrating CPU, program memory, data memory, timers, ADC, and communication peripherals on one die. Key features include 131 powerful instructions with mostly single-cycle execution, 32 general-purpose working registers, an 8-channel 10-bit ADC (in TQFP/QFN packages; fewer channels accessible in PDIP), three flexible timer/counters with compare modes, and debugWIRE on-chip debugging. A picoPower-class design supports multiple sleep modes with sub-uA power-down current, making the device suitable for battery-powered designs. The architecture pairs the AVR core with a Harvard memory bus, separating Flash program memory from SRAM for deterministic execution. In-System Programming via SPI and self-programming support simplify field updates and bootloader implementations. Typical applications include hobbyist and educational breadboard projects (the through-hole PDIP package is Arduino-IDE and ISP-programmer friendly), battery-powered sensor nodes, appliance control, and simple motor or LED control systems. Design consideration: at 1.8V the maximum clock frequency is 10MHz and the ADC reference range is reduced; always consult the frequency-versus-voltage derating curve before overclocking. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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ATMEGA64-16AJ

ATMEGA64-16AJ - 8-Bit AVR MCU 16MHz 64KB Flash | Microchip

The Microchip Technology ATMEGA64-16AJ is a low-power 8-bit AVR ATmega microcontroller with 64KB self-programming Flash program memory, 4KB SRAM, and 2KB EEPROM, running at up to 16 MHz and delivering 16 MIPS throughput in a 64-pin TQFP (14x14 mm) package. It operates from a 5V supply with 8 channels of 10-bit ADC and an on-chip JTAG interface for on-chip debug and boundary scan. An AVR ATmega microcontroller is a member of the AVR enhanced-RISC 8-bit MCU family, sitting within the broader hierarchy of microcontrollers under the microprocessor and embedded processor category. By executing most of its powerful instructions in a single clock cycle, AVR cores achieve throughput approaching one MIPS per MHz, letting system designers optimize power consumption versus processing speed. Key features include the advanced RISC architecture with 130 instructions (most single-cycle executed) and 32 x 8 general purpose working registers, 64KB of self-programming In-System Programmable Flash organized as 32K x 16, and a rich peripheral set: two 8-bit and one 16-bit timer/counters, two USARTs, SPI interface, two-wire serial (I2C-compatible) interface, and an analog comparator. The JTAG boundary-scan capability supports IEEE 1149.1-style test access and on-chip debugging, easing board-level manufacturing test. The self-programming Flash allows the bootloader to update firmware in the field, while 2KB EEPROM preserves calibration and configuration data through power cycles. The 8-channel 10-bit ADC with internal reference supports sensor front-ends directly on-chip, reducing bill-of-materials complexity. Typical applications include industrial automation controllers, embedded control systems requiring external memory interfaces (via the parallel port A-D on-chip bus), instrumentation and data loggers, and legacy board redesigns where the ATmega64 pinout is already qualified. Design consideration: the 16 MHz speed grade requires a 4.5V to 5.5V supply; below that, the clock must be derated according to the datasheet frequency-versus-voltage curve. This page synthesizes distributor pricing, pin-compatible drop-in alternatives (including the ATmega128 on the same footprint), and practical design notes not found in the manufacturer datasheet.

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ATMEGA64-16AU

ATMEGA64-16AU - 8-bit AVR MCU 64KB Flash 16MHz | Microchip

The Microchip Technology ATMEGA64-16AU is an 8-bit AVR RISC microcontroller with 64 KB of in-system programmable Flash, 4 KB SRAM, and 2 KB EEPROM, running at up to 16 MHz and housed in a 64-pin TQFP (14x14 mm) package. It delivers throughput approaching 1 MIPS per MHz and provides 53 general-purpose I/O lines for embedded control designs. An AVR microcontroller is a single-chip computer built on the enhanced RISC architecture originally developed by Atmel (now Microchip Technology). It integrates CPU, non-volatile program memory, data memory, and peripherals such as timers, serial interfaces, and analog-to-digital converters on one die. In the product hierarchy, the ATmega64 sits within the AVR 8-bit MCU family, which belongs to the broader microcontroller category under embedded processing semiconductors. Key features include 64 KB Flash with Read-While-Write capability, 4 KB internal SRAM, 2 KB EEPROM, a real-time counter (RTC), four flexible timer/counters with compare modes and PWM, two USARTs, a byte-oriented Two-wire serial interface, and an 8-channel 10-bit ADC. The device supports both 5V and 3.3V operation and offers six sleep modes for power-sensitive designs. The ATmega64 is 100% pin compatible with the legacy ATmega103, allowing direct replacement on existing printed circuit boards. Its JTAG interface supports IEEE 1149.1 boundary-scan and on-chip debug, while the self-programming Flash enables in-system firmware updates without removing the device from the board. Typical applications include industrial automation controllers, motor control, sensor hubs, building automation nodes, battery-powered instrumentation, and legacy ATmega103 board upgrades. The 53 I/O lines and dual USARTs make it well suited to multi-interface gateway designs. When designing with the ATMEGA64-16AU, decouple every VCC pin with a 100 nF ceramic capacitor placed close to the pin, and use a low-ESR crystal with matched load capacitors on XTAL1/XTAL2 for reliable 16 MHz operation. Keep the analog AVCC supply filtered through a ferrite bead for ADC accuracy. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet, giving engineers a single reference for selection, replacement, and layout decisions.

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ATMEGA64-16MC

ATMEGA64-16MC - 8-Bit AVR MCU 64KB Flash 16MHz QFN-64 | Microchip

The Atmel/Microchip Technology ATMEGA64-16MC is an 8-bit AVR enhanced RISC microcontroller with 64KB of In-System Programmable Flash (organized 32K x 16), 4KB SRAM, 2KB EEPROM, and a maximum clock frequency of 16MHz delivering up to 16 MIPS throughput, housed in a 64-pin QFN (9x9 mm) MLF package with exposed pad. An 8-bit microcontroller is a single-chip computer whose CPU processes data in 8-bit words, integrating program memory, data memory, timers, communication peripherals and analog converters on one silicon die. Within the product hierarchy, the ATMEGA64 belongs to the AVR ATmega family, which sits under the AVR MCU line, under the broader microcontroller (MCU) and semiconductor categories. MCUs of this class serve as the main embedded controller in countless industrial, consumer and instrumentation designs. Key features include the Advanced RISC architecture with 130 powerful instructions, most executed in a single clock cycle, plus 32 general-purpose working registers. The device integrates an 8-channel 10-bit ADC, a JTAG interface for on-chip debugging and boundary-scan, multiple timers with PWM channels, a hardware USART, SPI and TWI (I2C) serial interfaces, an analog comparator, a watchdog timer (WDT) and brown-out detect/reset. Self-programming Flash enables bootloader-based firmware updates in the field. Technically, the AVR core achieves near one MIPS per MHz by fetching an instruction while executing the previous one through a two-stage pipeline, letting designers trade clock speed directly against power consumption. Operating from a 4.5V to 5.5V supply (the '-16' speed grade), the MCU suits 5V industrial logic levels. Flash endurance is rated for 10,000 write/erase cycles with independent lock bits for code security. Typical applications include industrial control systems, building automation and HVAC controllers, test and measurement instrumentation, and motor-control or power-management nodes where a 5V-tolerant, ADC-equipped 8-bit MCU is required. The MLF/QFN package saves board area versus the TQFP-64 version while improving thermal performance through the exposed die-attach pad. A key design consideration: hand-soldering the MLF package is difficult because the ground pad and fine-pitch perimeter lands are underneath the body, so plan reflow assembly and a solid via-fan under the exposed pad for both grounding and heat spreading. This page synthesizes distributor pricing, drop-in alternatives, comparison data, and practical design notes not found in the manufacturer datasheet, with all data verified as of 2026-09-18.

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ATMEGA64-16MI

ATMEGA64-16MI - 8-Bit AVR MCU, 64KB Flash, 16MHz | Microchip

The Microchip Technology ATMEGA64-16MI is an 8-bit AVR microcontroller with 64KB of In-System Programmable Flash, 4KB SRAM, 2KB EEPROM, and an 8-channel 10-bit ADC, operating at up to 16MHz in a 64-pin QFN (9x9 mm) package rated for the industrial temperature range at 5V. An 8-bit microcontroller is a self-contained computing IC that integrates a CPU core, program memory, data memory, and peripherals such as timers, serial interfaces, and converters on a single die. The ATmega64 belongs to the AVR enhanced RISC family within the broader hierarchy of embedded processors and power/processing management devices in a system-on-board design. Key features include up to 16 MIPS throughput at 16MHz (one MIPS per MHz), 130 powerful instructions with mostly single-clock-cycle execution, eight general-purpose working registers, and a JTAG interface supporting on-chip debugging. The 64KB self-programming Flash allows firmware updates in the field, while the 2KB EEPROM retains calibration and configuration data through power cycles. The AVR architecture achieves near one MIPS per MHz by fetching and executing most instructions in a single clock cycle, which lets designers trade clock frequency directly against power consumption. Hardware multipliers, nested interrupt vectors, and rich peripheral sets (two USARTs, SPI, TWI/I2C, timers with PWM) reduce external component count. Typical applications include industrial automation controllers, sensor acquisition nodes using the 8-channel 10-bit ADC, motor control panels, building management systems, and embedded instrumentation where 5V logic levels and industrial temperature ratings are required. A key design consideration is that the -16MI suffix denotes the industrial-grade, 4.5V to 5.5V 16MHz speed grade in the QFN package; always confirm clock frequency and temperature requirements before substituting speed or temperature variants. This page synthesizes verified distributor data, drop-in alternatives, practical design notes, and FAQ content not found in the manufacturer datasheet, as of 2026-09-18.

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ATMEGA64-16MU

ATMEGA64-16MU - 8-Bit AVR MCU 16MHz 64KB Flash | Microchip

The Microchip Technology ATMEGA64-16MU is an 8-bit AVR enhanced RISC microcontroller with 64KB of In-System Programmable FLASH, 16MHz maximum clock frequency, 4KB SRAM, and a 2KB EEPROM, housed in a 64-pad QFN (9x9 mm) package with exposed pad. An 8-bit microcontroller (MCU) is a single-chip processor that integrates a CPU core, program and data memory, and peripheral functions such as timers, serial interfaces, and ADCs on one silicon die. MCUs sit at the heart of embedded systems - below microprocessors in processing power but above discrete logic in integration - forming the lowest tier of the compute hierarchy: microcontroller -> processor -> system-on-chip. The ATmega64 belongs to the AVR family, famous for executing most instructions in a single clock cycle. Key features include the AVR RISC architecture with 130 powerful instructions (most single-cycle) and 32 x 8-bit general-purpose working registers, achieving throughput approaching 1 MIPS per MHz. At the 16MHz maximum frequency, the device delivers up to 16 MIPS. Non-volatile memory is split into 64KB self-programmable FLASH endurance-rated for repeated reprogramming, 2KB EEPROM, and 4KB internal SRAM, enabling complex firmware with parameter storage in a single chip. The ATmega64 is a low-power CMOS design: fully static operation allows the clock to be stopped and restarted without losing register state, and power-down sleep modes reduce standby consumption to microamp levels. Peripherals typically include USARTs, SPI, TWI (I2C-compatible), a 10-bit ADC, JTAG for on-chip debugging and boundary scan, and multiple 8-bit and 16-bit timers with PWM outputs - all feeding the 53 programmable I/O lines. Typical applications include industrial automation control boards, motor and LED lighting control, metering equipment, sensor data loggers, and legacy embedded platforms built around the AVR instruction set. The 16MHz grade (4.5V to 5.5V operating voltage) suits 5V industrial environments where noise margin matters. Design consideration: this device is a mature product superseded by the ATmega64A; Microchip does not recommend it for new designs, so plan migration or stock-up accordingly. This page synthesizes distributor sourcing information, drop-in alternative options, lifecycle guidance, and practical design notes not found in the manufacturer datasheet alone.

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ATMEGA64-16MUR

ATMEGA64-16MUR - 8-Bit AVR MCU 64KB Flash 16MHz | Microchip

The Microchip Technology ATMEGA64-16MUR is an 8-bit AVR ATmega microcontroller delivering 16 MIPS throughput at 16 MHz, with 64 KB flash, 4 KB SRAM, 2 KB EEPROM and 53 general-purpose I/O lines, housed in a 64-pin QFN/MLF (9x9 mm) surface-mount package rated for industrial temperatures at a 5 V supply. An 8-bit AVR microcontroller is a Harvard-architecture RISC processor that executes most instructions in a single clock cycle, so throughput approaches one MIPS per MHz. Within the power-management hierarchy, an MCU integrates CPU, memory, and peripherals (timers, UARTs, SPI, ADC) on one die, replacing multi-chip designs and reducing board complexity in embedded systems. Key features include the AVR enhanced RISC core with 130 powerful instructions and 32 x 8 general-purpose working registers, fully static operation, 16 MHz maximum clock speed, and a supply voltage range of 4.5 V to 5.5 V. The 64 KB self-programmable flash supports in-system programming via SPI, while the separate 2 KB EEPROM retains calibration data through power cycles. Peripherals on this device include two 8-bit and two 16-bit timers with PWM, two UARTs, an 8-channel 10-bit ADC, an analog comparator, SPI and TWI (I2C) serial interfaces, and a JTAG boundary-scan/debug port. The architecture achieves near one MIPS per MHz, letting designers optimize power consumption versus processing speed - important for battery-backed industrial nodes. Typical applications include industrial automation controllers, building automation and HVAC nodes, embedded instrumentation, and motor-control auxiliary boards that need a mature, well-documented 5 V MCU with generous I/O. Design consideration: this is a mature product; Microchip lists the newer ATmega64A as its replacement and does not recommend the ATMEGA64-16MUR for new designs, though it remains active for existing production. This page synthesizes distributor pricing, same-family drop-in alternatives, and practical design notes not found in the manufacturer datasheet, with prices as of 2026-09-18.

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ATMEGA640-16AU

ATMEGA640-16AU - 8-bit AVR MCU 16MHz 64KB Flash | Microchip

The Microchip Technology ATMEGA640-16AU is a high-performance, low-power 8-bit AVR RISC microcontroller with 64 KB ISP Flash, 4 KB EEPROM, and 8 KB SRAM, executing up to 16 MIPS at 16 MHz in a 100-pin TQFP (14x14 mm) surface-mount package. It exposes 86 general-purpose I/O lines, four USARTs, one SPI port, one TWI (I2C) interface, a 16-channel 10-bit ADC, and six timer/counters with PWM, and operates from 2.7 V to 5.5 V to support both 3.3 V and 5 V designs. An 8-bit AVR microcontroller is a member of the microcontroller unit (MCU) family that integrates a processor core, program memory, data memory, and peripherals on a single die. Within the embedded-system hierarchy, the MCU sits at the control layer, orchestrating sensors, actuators, and communication interfaces. The AVR enhanced RISC core executes most instructions in a single clock cycle, delivering approximately 1 MIPS per MHz of throughput, which is the throughput-per-megahertz benchmark used across the ATmega lineup. The 16 MHz speed grade therefore yields ~16 MIPS, while in-system programmable (ISP) Flash allows firmware updates without removing the device from the PCB. Key features include 86 general-purpose I/O lines, 32 general-purpose working registers, a real-time counter, six flexible timer/counters with compare modes and PWM, four USARTs, a byte-oriented 2-wire serial interface (I2C/TWI), an SPI interface, a 16-channel 10-bit ADC, and an on-chip JTAG interface for boundary-scan and on-chip debugging. The 16 MHz speed grade and 2.7 V to 5.5 V supply range cover both 3.3 V and 5 V rails, simplifying mixed-voltage designs. The AVR enhanced RISC architecture combines a rich instruction set with single-cycle execution, while ISP Flash enables in-system firmware updates. The generous 86-I/O count and 16 PWM channels suit multi-axis motor control, and the four USARTs enable multi-channel serial communication such as RS-485 networks or multi-drop sensor buses. Typical applications include industrial automation controllers, building automation, 3D printers and CNC controllers, Arduino Mega-class development platforms (via MegaCore support), and multi-sensor instrumentation. The wide TQFP-100 footprint provides ample I/O for gateways, and the JTAG debug port speeds firmware bring-up. Design consideration: ensure decoupling capacitors on all VCC/AVCC pins and account for the wide TQFP-100 footprint in PCB routing; the ADC reference and AVCC supply should be filtered separately from digital VCC to preserve ADC accuracy at 10 bits. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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ATMEGA640-16AUR

ATMEGA640-16AUR - 8-bit AVR MCU 64KB Flash 16MHz TQFP-100 | Microchip

The Microchip Technology ATMEGA640-16AUR is an 8-bit AVR RISC-based microcontroller integrating 64 KB of in-system programmable Flash, 8 KB SRAM, and 4 KB EEPROM, with a 16 MHz maximum CPU clock and 86 general-purpose I/O lines, supplied in a 100-pin TQFP (14x14 mm) surface-mount package and rated for 4.5 V to 5.5 V operation over the industrial temperature range. An 8-bit AVR microcontroller is a Harvard-architecture RISC processor that executes most instructions in a single clock cycle, delivering close to 1 MIPS per MHz. The AVR ATmega family sits within the broader taxonomy of microcontroller units (MCUs) under the semiconductor and embedded-system hierarchy, and the ATmega640 shares its core with the ATmega1280/ATmega2560 used on the Arduino Mega platform, making it familiar to a wide embedded engineering audience. Key features include 32 general-purpose working registers, six flexible timer/counters with compare and PWM modes, a real-time counter with separate oscillator, and an 8/16-channel 10-bit successive-approximation ADC. The device also integrates two programmable serial USARTs, a master/slave SPI interface, a byte-oriented 2-wire serial interface (TWI/I2C-compatible), a programmable watchdog timer with its own on-chip oscillator, an on-chip analog comparator, and an output-compare modulator for dead-time generation. Technical depth: the AVR core achieves close to 1 MIPS per MHz throughput, allowing the ATMEGA640-16AUR to deliver approximately 16 MIPS at 16 MHz while keeping active power low. ISP Flash supports firmware updates on the final PCB without removing the device, the 4 KB EEPROM retains calibration and configuration data through power cycles, and the 100-pin TQFP package exposes enough I/O for parallel buses, multiple UART channels, and PWM-rich motor-control front-ends simultaneously. Typical applications include industrial control systems, building automation and HVAC controllers, consumer appliances, white goods, and instrumentation requiring many I/O lines and multiple serial channels. Its Arduino Mega compatibility also makes it popular for rapid prototyping and education. Design consideration: the suffix decoding matters - 16A = 16 MHz / 4.5-5.5 V, U = industrial temperature (-40C to +85C), R = tape-and-reel. For 2.7-5.5 V or 8 MHz battery designs, choose ATmega640V-8AUR instead. Ensure ISP programming signals (MOSI, MISO, SCK, RESET) are brought out to a programming header. This page synthesizes distributor pricing, drop-in same-family alternatives, and practical design notes not found in the manufacturer datasheet, with data verified as of 2026-10-07.

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ATMEGA640-16CU

ATMEGA640-16CU - 8-bit AVR MCU 16MHz 64KB CBGA-100 | Microchip

The Microchip Technology ATMEGA640-16CU (originally Atmel) is an 8-bit AVR RISC microcontroller with 64KB of in-system programmable FLASH, 8KB SRAM, 4KB EEPROM, and a 16MHz maximum clock, housed in a 100-ball CBGA package measuring 9x9 mm. An 8-bit microcontroller is an integrated circuit that executes instructions and controls peripheral devices using an 8-bit-wide data bus. The AVR ATmega family belongs to the broader taxonomy of embedded processors under the microcontroller (MCU) category, sitting alongside Microchip's PIC and SAM product lines. MCUs integrate CPU, memory, and peripherals on a single die, making them the foundation of embedded system design. Key features of the ATMEGA640-16CU include a 16MHz AVR RISC core delivering up to 16 MIPS, 64KB self-programmable FLASH with a dedicated boot section supporting in-system programming, and rich connectivity: four USARTs, one master/slave SPI interface, and one byte-oriented 2-wire serial interface (TWI/I2C). The device also integrates a programmable watchdog timer with a separate on-chip oscillator and an on-chip analog comparator. Technical depth: the AVR architecture uses a Harvard structure with single-cycle instruction execution, and the ATmega640 shares its die family with the ATmega1280 and ATmega2560 (64K/128K/256K Bytes In-System Programmable Flash per the datasheet title). Peripherals include an 8/16-channel 10-bit ADC and an output compare modulator. Typical applications include industrial automation controllers, 3D printer mainboards, embedded networking nodes, and test and measurement equipment, where the many USARTs and I/O ports simplify multi-channel designs. Design consideration: this part runs from a 4.5V to 5.5V supply only, so 3.3V designs require the V variants or level shifting; verify CBGA assembly capability before layout. This page synthesizes verified distributor data, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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ATMEGA640-16CUR

ATMEGA640-16CUR - 8-Bit AVR MCU 64KB 16MHz 100-CBGA | Microchip

The Microchip ATMEGA640-16CUR is an 8-bit AVR RISC microcontroller with 64 KB ISP Flash memory, 8 KB SRAM, and 4 KB EEPROM, executing at up to 16 MHz from a 2.7V to 5.5V supply in a 100-ball CBGA (9x9 mm) package. An 8-bit AVR microcontroller is a reduced-instruction-set (RISC) single-chip computer that integrates program Flash, data SRAM, EEPROM, timers, serial interfaces, and an ADC on one die. Within the power-management-and-control hierarchy of embedded systems, the AVR ATmega family sits in the general-purpose microcontroller class, alongside families such as PIC and STM8, and is programmed through In-System Programming (ISP) and debugged via In-Circuit Serial Programming (ICSP). Key features include 86 general-purpose I/O lines, up to four programmable serial USARTs, a master/slave SPI interface, a byte-oriented 2-wire serial interface (TWI/I2C-compatible), an 8/16-channel 10-bit ADC, an output-compare modulator, a programmable watchdog timer with a separate on-chip oscillator, and an on-chip analog comparator. The AVR core uses a Harvard architecture with 32 general-purpose working registers directly connected to the ALU, allowing most instructions to execute in a single clock cycle. The -16 speed grade sustains full 16 MIPS throughput at 16 MHz (5V), while the wide 2.7V to 5.5V operating range supports both battery-powered 3.3V designs and industrial 5V systems. The 64 KB self-programmable Flash enables boot-loader-based field firmware updates, and 4 KB EEPROM retains calibration data through power cycles. Typical applications include industrial automation controllers, building automation and HVAC boards, test and measurement instrumentation, and legacy ATmega2560-style embedded designs that need a lower-cost 64 KB memory point. Design consideration: at 16 MHz the device is specified for 4.5V to 5.5V operation; below 4.5V the maximum safe clock frequency decreases, so derate f_MAX versus VCC per the manufacturer datasheet. This page synthesizes distributor pricing, drop-in alternatives within the same 100-ball CBGA footprint, and practical design notes not found in the manufacturer datasheet.

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ATMEGA640V-8AU

ATMEGA640V-8AU - 8MHz 64KB Flash AVR MCU 100-TQFP | Microchip

The Microchip Technology ATMEGA640V-8AU is an 8-bit AVR RISC microcontroller with 64KB ISP Flash memory, 8KB SRAM, and 4KB EEPROM, operating at up to 8MHz across a 1.8V to 5.5V supply range, housed in a 100-pin TQFP (14x14 mm) package. This V-variant of the ATmega640 family targets low-voltage, battery-powered designs. An 8-bit AVR microcontroller (MCU) is a single-chip computer that integrates a processor core, program memory, data memory, timers, serial interfaces, and analog peripherals on one die. Microcontrollers sit at the device level of the embedded-systems hierarchy, beneath single-board computers and above discrete logic, and are the central building block of industrial control, consumer, and IoT electronics. Key features include 86 general purpose I/O lines, four USARTs, a byte-oriented 2-wire (I2C-compatible) serial interface, a master/slave SPI interface, a 16-channel 10-bit ADC, an on-chip analog comparator, a programmable watchdog timer with separate on-chip oscillator, and six flexible timer/counters with compare modes and PWM capability. External memory interfacing (EBI/EMI) supports system expansion. The AVR architecture executes most instructions in a single clock cycle through a Harvard-architecture RISC pipeline with 32 general purpose working registers, delivering throughput approaching 1 MIPS per MHz. At 8MHz this yields roughly 8 MIPS, adequate for control loops, protocol bridging, and instrument firmware while consuming very little power. In-System Programmable (ISP) Flash allows firmware updates without removing the device, and the ATmega640 shares its die with the ATmega1280/2560 family, simplifying memory-size migrations. Typical applications include industrial automation and building control nodes, low-voltage battery-powered instrumentation, motor control and LED lighting systems, and communication bridges using multiple USARTs. The wide 1.8V to 5.5V supply range makes it well suited to 2xAA/3xAA battery products. Design consideration: the V-grade maximum clock frequency of 8MHz applies across the full voltage range; the 5V-only 16MHz ATMEGA640-16AU is the speed-upgrade path but requires at least 4.5V supply. This page synthesizes distributor pricing, drop-in family alternatives, pinout guidance, and practical design notes not found in the manufacturer datasheet.

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ATMEGA640V-8AUR

ATMEGA640V-8AUR - 8-bit AVR MCU 64KB Flash 8MHz TQFP-100 | Microchip

The Microchip Technology ATMEGA640V-8AUR is a high-performance, low-power 8-bit AVR RISC microcontroller with 64 KB of In-System Programmable (ISP) Flash memory, 8 KB SRAM, and 4 KB EEPROM, operating at up to 8 MHz with a 1.8 V to 5.5 V supply, housed in a 100-pin TQFP (14 x 14 mm) package supplied on tape and reel. An 8-bit AVR microcontroller is a Harvard-architecture RISC processor in which Flash program memory, SRAM data memory, and EEPROM non-volatile storage are addressed on separate buses. Within the semiconductor hierarchy, the ATmega640 sits in the AVR ATmega family, under general-purpose microcontrollers, under embedded processors. In a complete system it acts as the central control element, reading sensors, driving actuators, and managing communication interfaces. Key features include 86 general-purpose I/O lines, 32 general-purpose working registers directly connected to the ALU for single-cycle execution, and six flexible timer/counters with output-compare and PWM channels. The device integrates an 8/16-channel 10-bit ADC, up to four programmable USARTs, master/slave SPI, a byte-oriented two-wire serial interface (TWI/I2C), a programmable watchdog timer with a separate on-chip oscillator, an on-chip analog comparator, and interrupt and wake-up on pin change. The AVR core achieves throughputs close to 1 MIPS per MHz, so at 8 MHz the ATMEGA640V-8AUR delivers roughly 8 MIPS while consuming very little power, which is why the V-grade (1.8 V to 5.5 V) part is favored in battery-powered and low-voltage industrial designs. In-System Programming via SPI and support for in-circuit debugging with tools such as MPLAB SNAP simplify manufacturing and field updates. Typical applications include industrial automation controllers, building automation and HVAC systems, battery-powered instrumentation, motor control panels, and multi-channel sensor acquisition nodes that need the 100-pin TQFP I/O count. Design-wise, remember the 8 MHz maximum clock for the V-grade part: do not substitute a faster grade at reduced voltage without checking the frequency-versus-voltage curve in the manufacturer datasheet. Decouple VCC and AVCC with 100 nF ceramics placed close to the pins. This page synthesizes distributor pricing, drop-in family alternatives, and practical design notes not found in the manufacturer datasheet, with pricing as of 2026-09-18.

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ATMEGA640V-8CU

ATMEGA640V-8CU - 8MHz AVR 64KB Flash MCU 100-CBGA | Microchip

The Microchip (Atmel) ATMEGA640V-8CU is a high-performance, low-power 8-bit AVR RISC microcontroller with 64KB of In-System Programmable Flash, 8KB SRAM, 4KB EEPROM, 86 general-purpose I/O lines, and a maximum clock frequency of 8MHz at the low-voltage operating range, housed in a 100-ball CBGA (9x9 mm) package. An 8-bit AVR microcontroller is a reduced-instruction-set computing device based on the Harvard architecture, executing most instructions in a single clock cycle. In the embedded-system hierarchy, it sits as the central processing element of a power management and control IC, integrating program memory, data memory, peripherals (timers, USARTs, SPI, TWI, ADC) and a CPU core on a single die, eliminating the need for external memory in most designs. Key features include the AVR RISC core with 32 general-purpose working registers, 64KB self-programmable Flash with 2KB boot section, four flexible 16-bit timer/counters with output-compare modulator, two 8-bit timers, an 8/16-channel 10-bit ADC, and up to four programmable serial USARTs plus master/slave SPI and byte-oriented 2-wire (TWI/I2C) interfaces. A programmable watchdog timer with a separate on-chip oscillator and on-chip analog comparator complete the peripheral set. The V-variant operates at the low end of the AVR voltage range, supporting green/lead-free assembly and industrial temperature ranges, making it suitable for battery-driven systems where supply voltage may fall well below the conventional 5V rail. The CBGA ball-grid array improves signal integrity and board density versus QFP alternatives for high-pin-count applications. Typical applications include industrial automation and control nodes, battery-powered instrumentation, building management systems, and multi-channel serial communication gateways that exploit the four USARTs and large 86-I/O complement. A key design consideration: verify the speed-versus-voltage curve, as the maximum safe clock frequency decreases at lower supply voltages, and ensure JTAG/debug pins are correctly strapped on the 100-ball footprint. This page synthesizes distributor pricing, drop-in same-family alternatives, and practical design notes not found in the manufacturer datasheet.

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ATMEGA64-16MU - 8-Bit AVR MCU 16MHz 64KB Flash | Microchip

ATMEGA64-16MUR - 8-Bit AVR MCU 64KB Flash 16MHz | Microchip

ATMEGA640-16AU - 8-bit AVR MCU 16MHz 64KB Flash | Microchip

ATMEGA640-16AUR - 8-bit AVR MCU 64KB Flash 16MHz TQFP-100 | Microchip

ATMEGA640-16CU - 8-bit AVR MCU 16MHz 64KB CBGA-100 | Microchip

ATMEGA640-16CUR - 8-Bit AVR MCU 64KB 16MHz 100-CBGA | Microchip

ATMEGA640V-8AU - 8MHz 64KB Flash AVR MCU 100-TQFP | Microchip

ATMEGA640V-8AUR - 8-bit AVR MCU 64KB Flash 8MHz TQFP-100 | Microchip

ATMEGA640V-8CU - 8MHz AVR 64KB Flash MCU 100-CBGA | Microchip