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ATmega640
  • ATmega640

ATmega640

In Production

The high-performance, low-power Microchip 8-bit AVR® RISC-based microcontroller combines 64 KB ISP Flash memory, 8 KB SRAM, 4 KB EEPROM, 86 general purpose I/O lines, 32 general purpose working registers, real-time counter, six flexible timer/counters with compare modes, PWM, four USARTs, byte-oriented Two-Wire serial interface, 16-channel 10-bit A/D converter, and a JTAG interface for on-chip debugging. The device achieves a throughput of 16 MIPS at 16 MHz and operates between 2.7-5.5 volts. By executing powerful instructions in a single clock cycle, the device achieves a throughput approaching one MIPS per MHz, balancing power consumption and processing speed....

Microchip Technology ATmega640 Product Info

16 April 2026 0

Parameters

Program Memory Size (KB)

64

RAM

8192

Data EEPROM (bytes)

4096

Pin Count

100

Operation Voltage Max.(V)

5.5

Operation Voltage Min.(V)

1.8

ADC Resolution Max

10

ADC Channels

16

Zero Cross Detect

No

Number of Comparators

1

SPI

5

I2C

1

Stand alone PWM

15

Low Power

No

Numerically Controlled Oscillator (NCO)

0

Data Signal Modulator (DSM)

0

Description

The high-performance, low-power Microchip 8-bit AVR® RISC-based microcontroller combines 64 KB ISP Flash memory, 8 KB SRAM, 4 KB EEPROM, 86 general purpose I/O lines, 32 general purpose working registers, real-time counter, six flexible timer/counters with compare modes, PWM, four USARTs, byte-oriented Two-Wire serial interface, 16-channel 10-bit A/D converter, and a JTAG interface for on-chip debugging. The device achieves a throughput of 16 MIPS at 16 MHz and operates between 2.7-5.5 volts.

By executing powerful instructions in a single clock cycle, the device achieves a throughput approaching one MIPS per MHz, balancing power consumption and processing speed.

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