| Model Number |
| ATMEGA644PA-AUR |
AT89C2051-12PU |
| Model Name |
| Microchip Tech ATMEGA644PA-AUR |
Microchip Tech AT89C2051-12PU |
| Category |
| Microcontroller Units (MCUs/MPUs/SOCs) |
Microcontroller Units (MCUs/MPUs/SOCs) |
| Brand |
| Microchip Tech |
Microchip Tech |
| Description |
| 64KB 1.8V~5.5V AVR 20MHz 32 TQFP-44(10x10) Microcontroller Units (MCUs/MPUs/SOCs) ROHS |
2KB 2.7V~6V 51Series 12MHz 15 DIP-20 Microcontroller Units (MCUs/MPUs/SOCs) ROHS |
| RoHS |
| Lead free / RoHS Compliant |
Lead free / RoHS Compliant |
| Unit |
| Piece |
Piece |
| Weight: |
| 0.400 grams / 0.01411 oz |
2.960 grams / 0.104411 oz |
| Package / Case |
| TQFP-44(10x10) |
DIP-20 |
| Package / Arrange |
| Tape & Reel (TR) |
Tube-packed |
| Battery |
| No |
No |
| ECCN |
| EAR99 |
EAR99 |
| Low-Voltage Detect |
| Yes |
N/A |
| Program Storage Size |
| 64KB |
2KB |
| Operating Temperature Range |
| -40℃~+85℃ |
-40℃~+85℃ |
| Operating Voltage Range |
| 1.8V~5.5V |
2.7V~6V |
| CPU Core |
| AVR |
51Series |
| Watchdog |
| Yes |
N/A |
| Internal Oscillator |
| Yes |
Yes |
| CPU Maximum Speed |
| 20MHz |
12MHz |
| ADC (Bit) |
| 10bit |
N/A |
| GPIO Ports Number |
| 32 |
15 |
