The document describes the features and characteristics of the Small Form Factor product introduced by Silicon Laboratories in 2005, including components such as UART, FLASH, SRAM, as well as functions related to system clock, analog/digital power, and debugging hardware.
The C8051F305 is a mixed‑signal 8051‑core microcontroller offering 25 MIPS performance, 2 kB Flash, 256 bytes of data RAM, and a range of analog peripherals such as comparators with programmable hysteresis. It includes on‑chip debug circuitry, a high‑speed pipelined core, and multiple digital I/O, timers, UART, and SMBus interfaces.
Electrical specifications include a supply voltage range of 2.7 V to 3.6 V, typical operating current of 5.8 mA at 25 MHz, and a temperature range of –40 °C to +85 °C. The device is offered in an 11‑pin MLP package, available in standard and lead‑free versions, and supports both internal and external clock sources.
| Supply Voltage | 2.7 V to 3.6 V |
|---|---|
| Typical Operating Current (25 MHz) | 5.8 mA |
| Flash Memory | 2 kB |
| Data RAM | 256 bytes |
| Package | 11‑pin MLP (standard and lead‑free) |
| Temperature Range | ‑40 °C to +85 °C |
The device operates from 2.7 V up to 3.6 V.
Typical current consumption is 5.8 mA when running at 25 MHz.
It is offered in an 11‑pin MLP package, both standard and lead‑free versions.
The microcontroller includes 2 kB of Flash memory.