This document is an introduction to the C8051F040 model of Mixed-Signal MCU produced by Silicon Laboratories. The product features a processing speed of 25 MIPS, 64 kB of Flash memory, a 12-bit ADC, and various other analog peripherals.
The C8051F040 is a 100‑pin mixed‑signal microcontroller offering a 25 MIPS 8051 core, 64 kB Flash, 12‑bit ADC, multiple digital interfaces and on‑chip debugging. It includes analog peripherals such as a 12‑bit ADC with up to 100 ksps throughput, a high‑voltage differential amplifier, and two 12‑bit DACs.
The handbook lists detailed electrical specifications, package information, and peripheral configurations, including supply voltage ranges, current consumption, temperature limits, CAN‑bus support, and clock source options. It also provides pin‑out diagrams and development‑kit references for designers.
| Supply Voltage | 2.7 to 3.6 V |
|---|---|
| Typical Operating Current (25 MHz) | 10 mA |
| Temperature Range | -40 to +85 °C |
| Flash Memory | 64 kB |
| Data RAM | 4352 bytes |
| ADC Resolution | 12 bits |
| ADC Throughput (12‑bit) | up to 100 ksps |
| Package | 100‑pin TQFP |
The device operates from 2.7 V to 3.6 V.
It provides 64 port I/O pins, all of which are 5 V tolerant.
The 12‑bit ADC can sample up to 100 ksps.
It is offered in a 100‑pin TQFP package, both standard and lead‑free.