| Model Number |
| PIC18F45K20-I/ML |
AT89S51-24PU |
| Model Name |
| Microchip Tech PIC18F45K20-I/ML |
Microchip Tech AT89S51-24PU |
| Category |
| Microcontroller Units (MCUs/MPUs/SOCs) |
Microcontroller Units (MCUs/MPUs/SOCs) |
| Brand |
| Microchip Tech |
Microchip Tech |
| Description |
| 32KB 1.8V~3.6V PIC 64MHz FLASH 35 QFN-44(8x8) Microcontroller Units (MCUs/MPUs/SOCs) ROHS |
4KB 4V~5.5V 51Series 128Byte 24MHz FLASH 32 DIP-40 Microcontroller Units (MCUs/MPUs/SOCs) ROHS |
| RoHS |
| Lead free / RoHS Compliant |
Lead free / RoHS Compliant |
| Unit |
| Piece |
Piece |
| Weight: |
| 1.000 grams / 0.035274 oz |
9.985 grams / 0.352211 oz |
| Package / Case |
| QFN-44(8x8) |
DIP-40 |
| Package / Arrange |
| Tube-packed |
Tube-packed |
| Battery |
| No |
No |
| ECCN |
| 3A991A2 |
EAR99 |
| Infrared Data Association |
| - |
- |
| Low-Voltage Detect |
| Yes |
- |
| CCP Capture/Compare |
| - |
- |
| Program Storage Size |
| 32KB |
4KB |
| Internal Comparator |
| - |
- |
| communication protocol |
| - |
- |
| Operating Voltage Range |
| 1.8V~3.6V |
4V~5.5V |
| Operating Temperature Range |
| -40℃~+85℃ |
-40℃~+85℃ |
| Watchdog |
| Yes |
Yes |
| CPU Core |
| PIC |
51Series |
| Peripheral/Function |
| PWM;WDT |
WDT |
| Real-Time Clock |
| - |
- |
| Secure Digital Input and Output |
| - |
- |
| Universal Serial Bus |
| - |
- |
| Direct Memory Access |
| - |
- |
| EEPROM |
| 256Byte |
N/A |
| PWM (Bit) |
| - |
- |
| Internal Oscillator |
| Yes |
Yes |
| CPU Maximum Speed |
| 64MHz |
24MHz |
| DAC (Bit) |
| - |
- |
| Program Memory Type |
| FLASH |
FLASH |
| ADC (Bit) |
| 10bit |
- |
| GPIO Ports Number |
| 35 |
32 |
