C8051F817-GSR

Overview

The C8051F817-GSR is an 8-bit mixed-signal microcontroller from the C8051F80x-83x family, manufactured by Silicon Labs. It features a high-speed pipelined 8051 core operating at up to 25 MHz with 25 MIPS throughput. The device integrates 16 kB of in-system programmable Flash memory and 512 bytes of internal data RAM. Key peripherals include a 10-bit ADC supporting up to 500 ksps, a capacitance-to-digital converter for capacitive sensing, and multiple digital communication interfaces including UART, SMBus, and SPI. It operates on a supply voltage range of 1.8 V to 3.6 V within an industrial temperature range of –40 °C to +85 °C.

Feature Summary

• Integrated capacitance-to-digital converter supports buttons, sliders, wheels, and proximity sensing with fast conversion times and auto-scan capabilities.
• On-chip debug circuitry enables full-speed, non-intrusive in-system debugging without requiring external emulation hardware.
• Pipelined instruction architecture executes a majority of instructions in one or two system clocks for efficient processing.
• High-speed 8051 μC core provides expanded interrupt handling and flexible clock source switching for power management.

Applications

• Capacitive touch sensing interfaces
• Data acquisition systems
• Industrial control logic
• Portable battery-powered devices

Procurement Notes

Verify component status as this series is marked Not Recommended for New Designs. Confirm package type matches design requirements, specifically the SOIC-16 variant for this suffix. Check for End-of-Life notifications or Product Change Notices regarding availability and long-term supply commitments before finalizing procurement plans.

Selection Notes

Select this model when 16 kB of Flash and 512 bytes of RAM are sufficient for application code and data storage. Ensure the 1.8 V to 3.6 V supply voltage range aligns with the system power architecture. Verify that the 10-bit ADC resolution and sampling rate meet signal conditioning requirements. Consider the SOIC-16 package dimensions for PCB layout constraints.

Part Context

This component belongs to the C8051F80x-83x mixed-signal ISP Flash MCU family. These devices are designed as complete system-on-a-chip solutions, integrating analog peripherals, digital I/O, and memory alongside the microcontroller core. The family emphasizes high integration to reduce external component count and simplify board design for embedded applications.

Replacement Considerations

Consult the official product selection guide for pin-compatible or functionally equivalent members within the C8051F8xx series. Verify memory sizes and peripheral configurations match application needs when selecting alternatives.