| Model Number |
| C8051F521A-IMR |
C8051F397-A-GMR |
| Model Name |
| SKYWORKS/SILICON LABS C8051F521A-IMR |
SKYWORKS/SILICON LABS C8051F397-A-GMR |
| Category |
| Microcontroller Units (MCUs/MPUs/SOCs) |
Microcontroller Units (MCUs/MPUs/SOCs) |
| Brand |
| SKYWORKS/SILICON LABS |
SKYWORKS/SILICON LABS |
| Description |
| 8KB 256Byte FLASH 6 1.8V~5.25V 51Series 25MHz DFN-10-EP(3x3) Microcontroller Units (MCUs/MPUs/SOCs) ROHS |
8KB 1KB FLASH 17 1.8V~3.6V 51Series 50MHz TQFN-20-EP(4x4) Microcontroller Units (MCUs/MPUs/SOCs) ROHS |
| RoHS |
| Lead free / RoHS Compliant |
Lead free / RoHS Compliant |
| Unit |
| Piece |
Piece |
| Weight: |
| 0.001 grams / 0.000035 oz |
0.001 grams / 0.000035 oz |
| Package / Case |
| DFN-10-EP(3x3) |
TQFN-20-EP(4x4) |
| Package / Arrange |
| Tape & Reel (TR) |
Tape & Reel (TR) |
| Battery |
| No |
No |
| ECCN |
| EAR99 |
3A991A2 |
| Infrared Data Association |
| - |
- |
| Low-Voltage Detect |
| Yes |
- |
| CCP Capture/Compare |
| - |
- |
| Program Storage Size |
| 8KB |
8KB |
| Internal Comparator |
| - |
- |
| communication protocol |
| - |
- |
| Watchdog |
| Yes |
Yes |
| Real-Time Clock |
| - |
- |
| Universal Serial Bus |
| - |
- |
| RAM Size |
| 256Byte |
1KB |
| 16Bit Timer |
| - |
- |
| 8Bit Timer |
| - |
- |
| PWM (Bit) |
| - |
- |
| Internal Oscillator |
| Yes |
Yes |
| DAC (Bit) |
| - |
- |
| Program Memory Type |
| FLASH |
FLASH |
| ADC (Bit) |
| 12bit |
- |
| GPIO Ports Number |
| 6 |
17 |
| Operating Temperature Range |
| -40℃~+125℃ |
-40℃~+105℃ |
| Operating Voltage Range |
| 1.8V~5.25V |
1.8V~3.6V |
| CPU Core |
| 51Series |
51Series |
| Peripheral/Function |
| Temperature transducer;WDT |
WDT |
| Secure Digital Input and Output |
| - |
- |
| Direct Memory Access |
| - |
- |
| I2C |
| - |
- |
| UART/USART |
| - |
- |
| 32Bit Timer |
| - |
- |
| CPU Maximum Speed |
| 25MHz |
50MHz |
| CAN |
| - |
- |
| SPI |
| - |
- |
| I2S |
| - |
- |
