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Home > Embedded ICs > 8bit MCU > ATMEGA644PA-PU

Microchip ATMEGA644PA-PU

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ATMEGA644PA-PU Overview

The high-performance Microchip picoPower 8-bit AVR RISC-based microcontroller combines 64KB ISP flash memory with read-while-write capabilities, 2KB EEPROM, 4KB SRAM, 32 general purpose I/O lines, 32 general purpose working registers, a real time counter, three flexible timer/counters with compare modes and PWM, two USARTs, a byte oriented 2-wire serial interface, an 8-channel 10-bit A/D converter with optional differential input stage with programmable gain, programmable watchdog timer with internal oscillator, SPI serial port, a JTAG (IEEE 1149.1 compliant) test interface for on-chip debugging and programming, and six software selectable power saving modes. The device operates between 1.8-5.5 volts.

By executing powerful instructions in a single clock cycle, the device achieves throughputs approaching 1 MIPS per MHz, balancing power consumption and processing speed.

ECAD Model

Symbol

ATMEGA644PA-PU

Footprint

ATMEGA644PA-PU

Applications

AVR? ATmega

Product Parameter

  • Core Processor AVR

  • Speed 20MHz

  • Operating Temperature -40℃ ~ 85℃ (TA)

  • Program Memory Type FLASH

  • RAM Size 4K x 8

  • Number of I/O 32

  • Peripherals Brown-out Detect/Reset, POR, PWM, WDT

  • Mounting Type Through Hole

  • Oscillator Type Internal

  • Supplier Device Package 40-PDIP

  • EEPROM Size 2K x 8

  • Package / Case 40-DIP (0.600, 15.24mm)

  • Core Size 8-Bit

  • Connectivity I2C, SPI, UART/USART

  • Program Memory Size 64KB (32K x 16)

  • Data Converters A/D 8x10b

  • Voltage - Supply (Vcc/Vdd) 1.8V ~ 5.5V

Circuit Diagram

ATMEGA644PA-PU Related Keywords

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  • ATMEGA644PA-PU Specifications
  • ATMEGA644PA-PU Pin voltage

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