C8051F834-GS

Overview

The C8051F834-GS is a mixed-signal ISP Flash MCU from the C8051F80x-83x family. It features a high-speed 8051 core with up to 25 MIPS throughput at 25 MHz. Memory includes up to 16 kB of in-system programmable Flash and up to 512 bytes of internal data RAM. Analog peripherals consist of a 10-bit ADC supporting up to 500 ksps, a comparator, and a capacitance-to-digital converter. Digital interfaces include an enhanced UART, SMBus, and SPI. The device operates on a supply voltage of 1.8 to 3.6 V and supports temperature ranges from –40 to +85 °C.

Feature Summary

• Integrated capacitance-to-digital converter for sensing applications
• On-chip debug circuitry for non-intrusive in-system debugging
• Pipelined instruction architecture for efficient processing
• In-system programmable Flash memory

Applications

• Capacitive proximity sensing
• Industrial control systems
• Portable instrumentation
• Battery-powered devices

Procurement Notes

Verify the component against official Silicon Laboratories documentation before integration. Confirm that the specific package variant matches your design requirements. Note that this product family is marked as Not Recommended for New Designs; evaluate long-term availability and lifecycle status prior to final procurement decisions.

Selection Notes

Select this component when a highly integrated mixed-signal solution is required within a small form factor. The inclusion of a capacitance-to-digital converter makes it suitable for touch interface designs. Ensure the application voltage falls within the 1.8 to 3.6 V range and consider the limited pin count if extensive I/O is needed.

Part Context

This microcontroller belongs to the C8051F80x-83x series, which are fully integrated system-on-a-chip solutions. The family shares a common architecture but varies in memory size and peripheral configurations. The C8051F834-GS represents a specific configuration within this lineup, optimized for cost-sensitive and space-constrained embedded applications.

Replacement Considerations

Consult the manufacturer's selection guide for direct pin-compatible or functionally equivalent alternatives within the same family. Verify memory sizes and peripheral sets carefully when considering cross-model replacements.