C8051F826-GSR

Overview

The C8051F826-GSR is a mixed-signal ISP Flash microcontroller from the Silicon Labs C8051F80x-83x family. It features a high-speed pipelined 8051 core operating at up to 25 MHz, delivering 25 MIPS throughput. The device integrates 8 kB of in-system programmable Flash memory and 256 bytes of internal data RAM. Key peripherals include a 10-bit ADC with up to 500 ksps sampling rate, a capacitive sense module with 16-bit resolution, three 16-bit timers, and a Programmable Counter Array. Communication interfaces consist of an enhanced UART, SMBus (I2C compatible), and SPI. 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

• High-speed 8051 core with pipelined architecture for efficient instruction execution
• Integrated capacitive sense module supporting buttons, sliders, and proximity sensing
• On-chip debug circuitry enabling non-intrusive in-system debugging without external emulators
• Mixed-signal integration including 10-bit ADC, comparators, and multiple serial communication ports

Applications

• Capacitive touch sensing interfaces
• Portable battery-powered instrumentation
• Industrial control systems requiring mixed-signal processing
• Low-power embedded applications

Procurement Notes

Verify the specific suffix 'GSR' against the manufacturer's current ordering guide to confirm package type and tape-and-reel specifications. Confirm that the component status remains acceptable for your design lifecycle, as the datasheet indicates this family may be Not Recommended for New Designs. Ensure compatibility with existing development tools and verify pinout assignments for the SOIC-16 package.

Selection Notes

Select this component when a cost-effective 8-bit solution with integrated analog capabilities is required. The C8051F826 offers sufficient Flash and RAM for moderate firmware complexity while providing dedicated hardware for capacitive sensing. Consider the 1.8 V to 3.6 V supply range for battery-operated designs. Evaluate the available I/O pins and peripheral count against system requirements before choosing between variants in the F80x-83x series.

Part Context

This part belongs to the C8051F80x-83x family of fully integrated mixed-signal system-on-chip microcontrollers. These devices are designed to reduce bill-of-materials costs by integrating common analog and digital peripherals onto a single die. The family shares a common instruction set and peripheral architecture, allowing for software portability across different memory configurations and package options within the same series.

Replacement Considerations

Direct replacements within the same family include C8051F826-GS or other suffixes denoting different packages or reel options. Cross-family migration to C8051F3xx or C8051T6xx series requires significant software adaptation due to architectural differences.