The C8051F330 is a 25 MIPS, 8 kB Flash, 10-Bit ADC, 20-Pin Mixed-Signal MCU with 10-Bit ADC, 10-bit DAC, Comparator, On-Chip Debug and other features.
The C8051F330 is a 20‑pin mixed‑signal microcontroller based on a pipelined 8051 core delivering up to 25 MIPS. It includes 8 kB Flash, 768 bytes of SRAM, a 10‑bit ADC with up to 200 ksps throughput, a 10‑bit current‑mode DAC, an on‑chip comparator, and an integrated temperature sensor. The device offers multiple digital peripherals such as UART, SPI, SMBus (I²C‑compatible), and a flexible 16‑bit timer/counter array.
The MCU operates from 2.7 V to 3.6 V and features two internal oscillators (24.5 MHz and 80 kHz) plus support for external clock sources. Typical active‑mode current is 6.4 mA at 25 MHz, with shutdown current below 0.1 µA. It is supplied in a 20‑pin QFN package (standard and lead‑free options) and is rated for –40 °C to +85 °C operation.
| Supply Voltage | 2.7 V – 3.6 V |
|---|---|
| Active‑mode Supply Current (25 MHz) | 6.4 mA |
| Shutdown Supply Current | <0.1 µA |
| ADC Resolution | 10 bits |
| DAC Resolution | 10 bits |
| Flash Memory | 8 kB |
| SRAM | 768 bytes |
| Package Type | 20‑pin QFN |
| Operating Temperature Range | –40 °C to +85 °C |
The C8051F330 operates from 2.7 V to 3.6 V.
It draws about 6.4 mA when the CPU is active at 25 MHz.
It is offered in a 20‑pin QFN package, both standard and lead‑free versions.