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| TYPE | DESCRIPTION |
| Mfr | Silicon Labs |
| Series | C8051F12x |
| Package | Tape & Reel (TR) |
| Product Status | Not For New Designs |
| DigiKey Programmable | Verified |
| Core Processor | 8051 |
| Core Size | 8-Bit |
| Speed | 100MHz |
| Connectivity | EBI/EMI, SMBus (2-Wire/I²C), SPI, UART/USART |
| Peripherals | Brown-out Detect/Reset, POR, PWM, Temp Sensor, WDT |
| Number of I/O | 32 |
| Program Memory Size | 128KB (128K x 8) |
| Program Memory Type | FLASH |
| EEPROM Size | - |
| RAM Size | 8.25K x 8 |
| Voltage - Supply (Vcc/Vdd) | 3V ~ 3.6V |
| Data Converters | A/D 8x8b, 8x12b; D/A 2x12b |
| Oscillator Type | Internal |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
| Package / Case | 64-TQFP |
| Supplier Device Package | 64-TQFP (10x10) |
| Base Product Number | C8051F121 |
