| Model Number |
| C8051F820-GMR |
SIM3U144-B-GM |
| Model Name |
| SKYWORKS/SILICON LABS C8051F820-GMR |
SKYWORKS/SILICON LABS SIM3U144-B-GM |
| Category |
| Microcontroller Units (MCUs/MPUs/SOCs) |
Microcontroller Units (MCUs/MPUs/SOCs) |
| Brand |
| SKYWORKS/SILICON LABS |
SKYWORKS/SILICON LABS |
| Description |
| 8KB 1.8V~3.6V 51Series 25MHz 17 QFN-20(4x4) Microcontroller Units (MCUs/MPUs/SOCs) ROHS |
64KB 1.8V~3.6V ARM-M3 80MHz 28 QFN-40(6x6) 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 |
1.000 grams / 0.035274 oz |
| Package / Case |
| QFN-20(4x4) |
QFN-40(6x6) |
| Package / Arrange |
| Tape & Reel (TR) |
Tray |
| Battery |
| No |
No |
| ECCN |
| 3A991A |
5A992C |
| Low-Voltage Detect |
| Yes |
Yes |
| Program Storage Size |
| 8KB |
64KB |
| Operating Temperature Range |
| -40℃~+85℃ |
-40℃~+85℃ |
| Operating Voltage Range |
| 1.8V~3.6V |
1.8V~3.6V |
| CPU Core |
| 51Series |
ARM-M3 |
| Watchdog |
| Yes |
Yes |
| Internal Oscillator |
| Yes |
Yes |
| CPU Maximum Speed |
| 25MHz |
80MHz |
| GPIO Ports Number |
| 17 |
28 |
