8-bit RISC microcontroller featuring an AVR RISC CPU operating at up to 20MHz. This FLASH-programmable device offers 32KB of program memory and 4KB of RAM, with 32 programmable I/O lines. It supports PWM generation and includes an Analog-to-Digital Converter (ADC). Designed for industrial temperature ranges (-40°C to 85°C), it operates from a 4.5V to 5.5V supply. The component is housed in a 40-pin PDIP package.
Frequency20
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Technical Specifications
Atmel ATMEGA644-20PU technical specifications.
General
Max Operating Temperature
85
Number of Terminals
40
Min Operating Temperature
-40
Terminal Position
DUAL
JEDEC Package Code
R-PDIP-T40
Width
15.24
Length
52.324
Pin Count
40
Temperature Grade
INDUSTRIAL
Supply Current-Max
9
Supply Voltage-Nom
5
Supply Voltage-Min
4.5
Supply Voltage-Max
5.5
Clock Frequency-Max
16
uPs/uCs/Peripheral ICs Type
MICROCONTROLLER, RISC
Number of I/O Lines
32
External Data Bus Width
0
Address Bus Width
0
Bit Size
8
Speed
20
ROM Programmability
FLASH
ROM (words)
32768
RAM (bytes)
4096
PWM Channels
YES
Has ADC
YES
DMA Channels
NO
DAC Channels
NO
Compliance
RoHS
Yes
Eccn Code
EAR99
Lead Free
Yes
HTS Code
8542.31.00.01
REACH
Compliant
Military Spec
False
Datasheet
Atmel ATMEGA644-20PU Datasheet
Download the complete datasheet for Atmel ATMEGA644-20PU to view detailed technical specifications.
This datasheet cannot be embedded due to technical restrictions.