C8051F120-GQ

Overview

The C8051F120-GQ is a mixed-signal 8-bit microcontroller from the C8051F12x family, manufactured by Silicon Labs. It features an 8051 core operating at up to 100 MIPS with an on-chip PLL. The device includes 128 kB of in-system programmable Flash memory and 8448 bytes of internal data RAM. Analog peripherals consist of an 8-bit SAR ADC (up to 500 ksps), a 12-bit SAR ADC (up to 100 ksps), two 12-bit DACs, and two analog comparators. It supports SMBus, SPI, and dual UART interfaces within a 100-pin TQFP package.

Feature Summary

• High-performance pipelined 8051 core with 2-cycle 16 x 16 MAC engine
• Integrated mixed-signal capabilities including 8-bit and 12-bit ADCs, dual 12-bit DACs, and comparators
• On-chip JTAG debug circuitry for non-intrusive in-circuit debugging
• Flexible clocking system with internal precision oscillator and PLL

Applications

• Portable medical equipment
• Weigh scales
• Test equipment
• Fiber optic systems

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status and check for End-of-Life announcements prior to procurement. Ensure packaging specifications match project requirements. Validate that the specific suffix corresponds to the desired package type and temperature range.

Selection Notes

Select this component for applications requiring high analog integration alongside digital processing. Consider the 100-pin TQFP package for expanded I/O availability. Evaluate power consumption against the 2.7V to 3.6V supply range. Verify compatibility with existing development tools and debug interfaces before finalizing the design choice.

Part Context

This part belongs to the C8051F12x series of highly integrated mixed-signal microcontrollers. The series is characterized by its complete system-on-chip solution approach, combining a fast 8051 core with extensive peripheral sets. It targets embedded systems needing standalone operation without external support components.

Replacement Considerations

Silicon Labs recommends the EFM8BB31F64G-QFN32 as a replacement for this part due to End-of-Life status.