|
ADC:
|
YES |
|
Architecture:
|
8-bit |
|
CAN interface:
|
NO |
|
Case:
|
MLF44 |
|
DAC:
|
NO |
|
EEPROM memory:
|
2kB |
|
Encryption:
|
NO |
|
ETHERNET interface:
|
NO |
|
FLASH memory:
|
64kB |
|
Frequency:
|
20,000MHz |
|
Manufacturer:
|
MICROCHIP |
|
Number of I/O:
|
32 |
|
Operating temperature (range):
|
-40°C ~ 85°C |
|
RAM memory:
|
4kB |
|
SPI interface:
|
YES |
|
Supply voltage range:
|
1,8V~5,5V |
|
TWI (I2C) interface:
|
YES |
|
UART/USART interface:
|
YES |
|
USB interface:
|
NO |
Detailed description
ATMEGA644PA is the latest version of the ATMEL ATMEGA644 microcontrollers, made using picoPower™ technology, which focuses on reducing power consumption both in active and idle states. The ATMEGA644PA offers up to 25% lower power consumption in the active state and up to 60% lower power consumption in idle state compared to the older ATMEGA644P version, while maintaining identical functionality. This is an excellent solution for battery-powered devices.
Selected features:
- Available memory:
64kB of system-programmable FLASH program memory
4kB of RAM data memory
2kB of EEPROM data memory
- Input/output pins: 32
- Peripherals:
Timers: two 8-bit and one 16-bit
Two USART synchronous/asynchronous serial communication interfaces
SPI Master/Slave serial interface
TWI interface compatible with I2C®
Real-time clock
6-channel PWM mode
Analog comparator
Programmable Watchdog timer with built-in internal oscillator
Power-on reset (POR) circuit
Brown-out detection (BOD) circuit
10-bit ADC converter
JTAG interface compliant with IEEE 1149.1
- Low power modes: Idle, ADC Noise Reduction, Power-save, Power-down, Standby, Extended Standby
- Supply voltage: 1.8V~5.5V
- Operating temperature: -40°C ~ 85°C
- Operating frequency: 20MHz
- Available in packages: TQFP44, MLF44, and PDIP40
