C8051F828-GSR

Overview

The C8051F828-GSR is a mixed-signal ISP Flash microcontroller from the Silicon Labs C8051F80x-83x family. It features a high-speed 8051 core with up to 25 MIPS throughput at a 25 MHz clock. The device includes up to 16 kB of in-system programmable Flash memory and up to 512 bytes of internal data RAM. Analog peripherals consist of a 10-bit ADC supporting up to 500 ksps, a capacitive sense module with 16-bit resolution, and a comparator. Digital interfaces include UART, SMBus, and SPI. It operates on a 1.8 V to 3.6 V supply within a –40 °C to +85 °C temperature range.

Feature Summary

• Integrated capacitive sense module for 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 70% of instructions in one or two system clocks
• In-system programmable Flash memory allowing field upgrades and non-volatile data storage

Applications

• Capacitive touch interface implementations
• Low-power embedded control systems
• Industrial sensor monitoring applications
• Portable battery-operated devices

Procurement Notes

Verify component status before procurement as this part is designated Not Recommended for New Designs. Confirm package availability matches project requirements. Check for end-of-life notifications or last-time-buy windows. Ensure design migration strategies are evaluated if long-term supply is required. Validate ordering suffixes against specific package and temperature grade needs.

Selection Notes

Select this MCU for designs requiring integrated capacitive sensing alongside standard analog conversion. Evaluate pin count compatibility between SOIC-16, QFN-20, and QSOP-24 packages. Consider the 25 MHz maximum clock speed for timing-critical applications. Review power management modes for energy efficiency requirements. Verify peripheral availability such as UART and SPI counts for system connectivity.

Part Context

This component belongs to the C8051F80x-83x mixed-signal microcontroller family. These devices are designed for cost-sensitive applications requiring high integration. The family shares a common architecture with varying memory sizes and I/O configurations. Development tools like 8-bit Microcontroller Studio support programming and debugging across the series.

Replacement Considerations

Consult official documentation for recommended replacements due to the Not Recommended for New Designs status. Evaluate EFM8 Busy Bee series for modern alternatives with similar functionality. Verify pinout and peripheral compatibility during migration.