This datasheet provides a detailed description of the C8051F121 100 MIPS, 128 kB Flash, 12-Bit ADC, 64-Pin Mixed-Signal MCU
The C8051F121 is a 64‑pin mixed‑signal microcontroller from Silicon Labs featuring a 100 MIPS 8051 core, 128 kB Flash, 12‑bit ADC, dual 12‑bit DACs, and extensive digital peripherals such as UARTs, SPI, SMBus, and programmable timers. It includes on‑chip JTAG debug, boundary‑scan, and a high‑speed PLL for flexible clocking.
The datasheet lists detailed electrical specifications, including a supply voltage range of 3.0‑3.6 V, typical operating current of 50 mA at 100 MHz, and a temperature range of –40 °C to +85 °C. Package information shows the device is supplied in a 64‑pin TQFP form factor.
| CPU speed | 100 MIPS at 100 MHz |
|---|---|
| Flash memory | 128 kB |
| ADC resolution | 12 bits |
| DAC resolution | 12 bits |
| Supply voltage | 3.0 V – 3.6 V |
| Operating temperature | ‑40 °C to +85 °C |
| Package | 64‑Pin TQFP |
| Typical supply current | 50 mA at 100 MHz |
The device can run up to 100 MHz, delivering up to 100 MIPS.
It includes 128 kB of flash memory.
The microcontroller operates from 3.0 V to 3.6 V.