| Model Number |
| EFM8SB20F64G-B-QFN24 |
C8051F961-B-GMR |
| Model Name |
| SKYWORKS/SILICON LABS EFM8SB20F64G-B-QFN24 |
SKYWORKS/SILICON LABS C8051F961-B-GMR |
| Category |
| Microcontroller Units (MCUs/MPUs/SOCs) |
Microcontroller Units (MCUs/MPUs/SOCs) |
| Brand |
| SKYWORKS/SILICON LABS |
SKYWORKS/SILICON LABS |
| Description |
| 64KB 1.8V~3.6V 51Series 25MHz 16 QFN-24-EP(4x4) Microcontroller Units (MCUs/MPUs/SOCs) ROHS |
128KB 8.25KB FLASH 34 1.8V~3.8V 51Series 25MHz QFN-40-EP(6x6) Microcontroller Units (MCUs/MPUs/SOCs) ROHS |
| RoHS |
| Lead free / RoHS Compliant |
Lead free / RoHS Compliant |
| Unit |
| Piece |
Piece |
| Weight: |
| 0.550 grams / 0.019401 oz |
0.001 grams / 0.000035 oz |
| Package / Case |
| QFN-24-EP(4x4) |
QFN-40-EP(6x6) |
| Package / Arrange |
| Tube-packed |
Tape & Reel (TR) |
| Battery |
| No |
No |
| ECCN |
| 3A991A2 |
5A992C |
| Low-Voltage Detect |
| Yes |
Yes |
| Program Storage Size |
| 64KB |
128KB |
| Operating Temperature Range |
| -40℃~+85℃ |
-40℃~+85℃ |
| Operating Voltage Range |
| 1.8V~3.6V |
1.8V~3.8V |
| CPU Core |
| 51Series |
51Series |
| Watchdog |
| Yes |
Yes |
| Internal Oscillator |
| Yes |
Yes |
| CPU Maximum Speed |
| 25MHz |
25MHz |
| ADC (Bit) |
| 10bit |
10bit;12bit |
| GPIO Ports Number |
| 16 |
34 |
