8-Bit Microcontroller, featuring an 8051 CPU core operating at 25MHz. This CMOS device offers 8KB of FLASH memory and 256 Bytes of RAM, with 32 ADC channels and 22 I/O pins. Integrated peripherals include SPI, UART, USART interfaces, 3 timers/counters, and a watchdog timer. Designed for surface mount applications, it operates from a 2.7V to 3.6V supply and is packaged in an LQFP-32, lead-free tray.
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Silicon Labs C8051F221-GQ technical specifications.
| Access Time | 25us |
| Package/Case | LQFP |
| Contact Plating | Tin |
| Core Architecture | 8051 |
| Data Bus Width | 8b |
| Frequency | 25MHz |
| Height | 1.45mm |
| Interface | SPI, UART, USART |
| Lead Free | Lead Free |
| Length | 7mm |
| Max Frequency | 25MHz |
| Max Operating Temperature | 85°C |
| Min Operating Temperature | -40°C |
| Max Power Dissipation | 1W |
| Max Supply Voltage | 3.6V |
| Memory Size | 8KB |
| Memory Type | FLASH, |
| Min Supply Voltage | 2.7V |
| Mount | Surface Mount |
| Number of ADC Channels | 32 |
| Number of I/Os | 22 |
| Number of Programmable I/O | 32 |
| Number of SPI Channels | 1 |
| Number of Timers/Counters | 3 |
| Number of UART Channels | 1 |
| Operating Supply Voltage | 3.3V |
| Oscillator Type | Internal |
| Package Quantity | 250 |
| Packaging | Tray |
| Peripherals | Brown-out Detect/Reset, POR, WDT |
| RAM Size | 256B |
| RoHS Compliant | Yes |
| Series | C8051F2xx |
| Watchdog Timer | Yes |
| Width | 7mm |
| RoHS | Compliant |
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