ATMEGA644-20PU
Symbol Micros:
ATM644-20pu
Case : PDIP40
64kB-FL 4kB-RAM 2kB-EE 32I/O 2.7÷5.5V 20MHz 3xtimer 8A/D UART SPI TWI -40÷85°C Replaced by: ATMEGA644PA-PU
Parameters
| Manufacturer: | MICROCHIP |
| Architecture: | 8-bit |
| FLASH memory: | 64kB |
| RAM memory: | 4kB |
| EEPROM memory: | 2kB |
| Number of I/O: | 32 |
| Supply voltage range: | 2,7V~5,5V |
| Manufacturer: | MICROCHIP |
| Architecture: | 8-bit |
| FLASH memory: | 64kB |
| RAM memory: | 4kB |
| EEPROM memory: | 2kB |
| Number of I/O: | 32 |
| Supply voltage range: | 2,7V~5,5V |
| Frequency: | 20,000MHz |
| ADC: | YES |
| DAC: | NO |
| UART/USART interface: | YES |
| SPI interface: | YES |
| TWI (I2C) interface: | YES |
| CAN interface: | NO |
| ETHERNET interface: | NO |
| USB interface: | NO |
| Encryption: | NO |
| Operating temperature (range): | -40°C ~ 85°C |
| Case: | PDIP40 |
Detailed description
Micros Part Number | ATM644-20pu |
Manufacturer Part Number | ATMEGA644-20PU |
Flash | 64 Kbytes |
Pin Count | 44 |
Max. Operating Freq. | 20 MHz |
CPU | 8-bit AVR |
Max I/O Pins | 32 |
SPI | 3 |
UART | 1 |
SRAM (Kbytes) | 4 |
Self Program Memory | Tak |
Operating Voltage (Vcc) | 1.8 to 5.5 |
Timers | 3 |
Watchdog | Yes |
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