The ATMEGA644P-20PU is a low-power CMOS 8-bit Microcontroller, based on the AVR enhanced RISC architecture. By executing powerful instructions in a single clock cycle, the microcontroller achieves throughputs approaching 1 MIPS per MHz allowing the system designed to optimize power consumption versus processing speed.
  • High-performance, Low-power AVR® 8-Bit Microcontroller
  • Advanced RISC Architecture
  • High Endurance Non-volatile Memory Segments
  • JTAG (IEEE Standard 1149.1 Compliant) Interface
  • Power-on Reset and Programmable Brown-out Detection
  • Internal Calibrated RC Oscillator
  • External and Internal Interrupt Sources
  • Idle, ADC Noise Reduction, Power-save, Power-down, Standby and Extended Standby Sleep Modes
  • 0 to 20MHz at 4.5 to 5.5V Speed Grade
  • 0.4mA Active, 0.1µA Power-down mode, 0.6µA Power-save mode (32kHz RTC) power consumption

Specification

Core Processor
AVR
Core Size
8-Bit
Speed
20MHz
Connectivity
I2C, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number of I/O
32
Program Memory Size
64KB (32K x 16)
Program Memory Type
FLASH
EEPROM Size
2K x 8
RAM Size
4K x 8
Voltage - Supply (Vcc/Vdd)
2.7V ~ 5.5V
Data Converters
A/D 8x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C (TA)
Mounting Type
Through Hole
Supplier Device Package
40-PDIP
Package / Case
40-DIP (0.600", 15.24mm)

Shipping

Your order is dispatched the next working day after payment is received by International Registered Tracked & Signed - CTT Portugal.
As an example, consider the following delivery time:
- Between 3 to 5 working days EU
- Between 5 to 7 working days USA