 |  | | |
| PartNumber | C8051F921-G-GMR | C8051F921-G-GM | C8051F921-GM |
| Description | 8-bit Microcontrollers - MCU 32kB/4kB RAM, 10bADC, DC-DC, 0.9V, QFN24 | 8-bit Microcontrollers - MCU 32kB/4kB RAM, 10bADC, DC-DC, 0.9V, QFN24 | 8-bit Microcontrollers - MCU 32KB,10ADC,24Pin MCU |
| Manufacturer | Silicon Laboratories | Silicon Laboratories | Silicon Laboratories |
| Product Category | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU |
| RoHS | Y | Y | Y |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | VFQFN-20 | QFN-24 | QFN-24 |
| Core | 8051 | 8051 | 8051 |
| Data Bus Width | 8 bit | 8 bit | 8 bit |
| Maximum Clock Frequency | 25 MHz | 25 MHz | 25 MHz |
| Program Memory Size | 32 kB | 32 kB | 32 kB |
| Data RAM Size | 4.25 kB | 4.25 kB | 4 kB |
| ADC Resolution | 10 bit | 10 bit | 10 bit |
| Number of I/Os | 17 I/O | 16 I/O | 24 I/O |
| Operating Supply Voltage | 1.8 V to 3.6 V | 1.8 V to 3.6 V | 1.8 V to 3.6 V |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 85 C | + 85 C | + 85 C |
| Packaging | Reel | Tube | Reel |
| Product | MCU | - | - |
| Program Memory Type | Flash | Flash | Flash |
| Brand | Silicon Labs | Silicon Labs | Silicon Labs |
| Interface Type | SMBus, SPI, UART | I2C, SMBus, SPI, UART | SMBus, SPI, UART |
| Analog Supply Voltage | 900 mV to 3.6 V | - | - |
| Number of Timers/Counters | 4 x 16 bit | 4 Timer | 4 Timer |
| Processor Series | C8051 | C8051F9xx | C8051 |
| Product Type | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU | 8-bit Microcontrollers - MCU |
| Factory Pack Quantity | 1500 | 91 | 91 |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | Microcontrollers - MCU |
| Supply Voltage Max | 3.6 V | 3.6 V | 3.6 V |
| Supply Voltage Min | 900 mV | 0.9 V | 1.8 V |
| Watchdog Timers | Watchdog Timer | - | - |
| Data RAM Type | - | RAM | - |
| Unit Weight | - | 0.001764 oz | 0.001368 oz |
| Series | - | - | C8051F921 |
| Height | - | - | 0.73 mm |
| Length | - | - | 4 mm |
| Width | - | - | 4 mm |
| Number of ADC Channels | - | - | 15 |