C8051F807-GU

Overview

The C8051F807-GU is an 8-bit mixed-signal microcontroller from the Silicon Labs C8051F80x-83x family, featuring a CIP-51 core operating at up to 25 MHz. It includes 16 KB of in-system programmable Flash memory and 512 bytes of internal data RAM. The device integrates a 10-bit ADC with up to 16 external single-ended inputs, a capacitive sense module with up to 16 channels, and a comparator. Digital peripherals include UART, SMBus, SPI, three 16-bit timers, and a PCA with PWM functionality. It operates on a supply voltage of 1.8 V to 3.6 V within a temperature range of -40 °C to +85 °C.

Feature Summary

• Integrated Capacitance to Digital Converter supporting buttons, sliders, wheels, and proximity sensing with auto-scan capabilities
• On-chip debug circuitry enabling full-speed, non-intrusive in-system debugging without external emulators
• Pipelined instruction architecture executing 70% of instructions in one or two system clocks for high throughput
• Programmable digital crossbar allows flexible assignment of I/O pins to analog and digital functions

Applications

• Capacitive touch sensing interfaces including buttons and sliders
• Industrial control systems requiring mixed-signal processing
• Portable instrumentation utilizing low-voltage operation
• Sensor signal conditioning using integrated ADC and comparators

Procurement Notes

Verify component authenticity through authorized distributors as this part is marked Not Recommended for New Designs. Confirm package type matches QSOP-24 requirements. Check for obsolescence notices or last-time-buy dates before finalizing procurement plans. Ensure design reviews account for end-of-life status if long-term production support is required.

Selection Notes

Select this MCU when existing designs utilize the C8051F80x series and require maintenance rather than new development. Evaluate pin compatibility with current PCB layouts due to the specific QSOP-24 footprint. Consider the limited future availability given the Not Recommended for New Designs status. Review datasheet errata for any known silicon revisions affecting performance characteristics.

Part Context

This component belongs to the C8051F80x-83x mixed-signal ISP Flash MCU family by Silicon Labs. The family shares a common architecture but varies in memory size and peripheral configurations. The C8051F807 variant specifically provides 16 KB Flash and supports capacitive sensing features. It is designed for applications needing high integration in a small form factor.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult Silicon Labs for alternative recommendations suitable for legacy replacements.