This datasheet provides details on the features and characteristics of the 8K ISP FLASH MCU Family C8051F020/1/2/3 product
The C8051F020/1/2/3 family is an 8‑bit microcontroller series with a high‑speed 8051‑compatible core, up to 25 MIPS at 25 MHz, on‑chip flash, SRAM, and a rich set of analog and digital peripherals including 12‑bit, 10‑bit and 8‑bit ADCs, DACs, comparators, and multiple UART, SPI and I²C interfaces. It supports on‑chip JTAG debug and boundary‑scan compliant with IEEE 1149.1.
The document contains a system overview, absolute maximum ratings, electrical characteristics, pin‑out definitions, detailed descriptions of each peripheral (ADC, DAC, voltage reference, comparators, timers, UART, SPI, SMBus, etc.), memory organization, power‑management modes, oscillator options, flash programming via JTAG, and debug support information.
| CPU core speed | 25 MHz (up to 25 MIPS) |
|---|---|
| Flash memory | 64 kB |
| Internal RAM | 4 kB + 256 B |
| Supply voltage | 2.7 V to 3.6 V |
| Typical operating current | 10 mA @ 20 MHz |
| Temperature range | -40 °C to +85 °C |
| Package options | 100‑pin TQFP, 64‑pin TQFP |
The devices operate from 2.7 V to 3.6 V.
Each device includes 64 kB of flash memory.