| Model Number |
| PIC16C74B-04/P |
AT89C55WD-24PU |
| Model Name |
| Microchip Tech PIC16C74B-04/P |
Microchip Tech AT89C55WD-24PU |
| Category |
| Microcontroller Units (MCUs/MPUs/SOCs) |
Microcontroller Units (MCUs/MPUs/SOCs) |
| Brand |
| Microchip Tech |
Microchip Tech |
| Description |
| 7KB 4V~5.5V PIC 4MHz 33 PDIP-40 Microcontroller Units (MCUs/MPUs/SOCs) ROHS |
20KB 4.5V~5.5V 51Series 256Byte 24MHz FLASH 32 DIP-40 Microcontroller Units (MCUs/MPUs/SOCs) ROHS |
| RoHS |
| Lead free / RoHS Compliant |
Lead free / RoHS Compliant |
| Unit |
| Piece |
Piece |
| Weight: |
| 9.300 grams / 0.328048 oz |
9.985 grams / 0.352211 oz |
| Package / Case |
| PDIP-40 |
DIP-40 |
| Package / Arrange |
| Tube-packed |
Tube-packed |
| Battery |
| No |
No |
| ECCN |
| EAR99 |
EAR99 |
| Low-Voltage Detect |
| Yes |
- |
| Program Storage Size |
| 7KB |
20KB |
| Operating Temperature Range |
| 0℃~+70℃ |
-40℃~+85℃ |
| Operating Voltage Range |
| 4V~5.5V |
4.5V~5.5V |
| CPU Core |
| PIC |
51Series |
| Watchdog |
| Yes |
Yes |
| Secure Digital Input and Output |
| - |
- |
| Direct Memory Access |
| - |
- |
| Universal Serial Bus |
| - |
- |
| CPU Maximum Speed |
| 4MHz |
24MHz |
| ADC (Bit) |
| 8bit |
- |
| GPIO Ports Number |
| 33 |
32 |
