C8051F827-GSR

Overview

The C8051F827-GSR is a mixed-signal ISP Flash microcontroller from the Silicon Labs C8051F80x-83x family. It features an 8-bit CIP-51 core with up to 25 MIPS throughput at 25 MHz. The device includes 16 kB of in-system programmable Flash memory and 256 bytes of internal data RAM. Key peripherals include a 10-bit ADC, capacitive sense module, comparators, UART, SMBus, SPI, and PCA. 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 capacitive sense module 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.
• High-speed pipelined 8051 core executing most instructions in one or two system clocks for efficient processing.
• Flexible clock sources including an internal oscillator and external options, allowing on-the-fly switching for power management.

Applications

• Capacitive touch interface implementations
• Portable battery-powered instrumentation
• Industrial control systems requiring mixed-signal processing

Procurement Notes

Verify component authenticity through authorized distributors. Confirm package type matches design requirements. Check datasheet revision for latest electrical characteristics. Ensure environmental compliance documentation is available. Validate operating voltage and temperature ranges against application specifications.

Selection Notes

Select this MCU for applications needing integrated analog-to-digital conversion and capacitive sensing. Consider the 16-pin SOIC package for space-constrained designs. Evaluate the 25 MHz maximum clock speed against processing requirements. Verify compatibility with existing development tools and debug interfaces.

Part Context

This component belongs to the C8051F80x-83x series of mixed-signal microcontrollers. These devices are designed for high integration, combining digital processing with analog peripherals on a single chip. The series targets cost-sensitive embedded applications requiring robust performance and low power consumption.

Replacement Considerations

Consult official Silicon Labs documentation for verified substitute part numbers within the same family. Cross-reference pinouts and peripheral configurations before substitution. Ensure thermal and electrical specifications match the original design constraints.