C8051F833-GSR

Overview

The C8051F833-GSR is an 8-bit mixed-signal ISP Flash microcontroller from Silicon Labs, featuring a high-speed CIP-51 core with up to 25 MIPS throughput at a 25 MHz clock. It integrates up to 16 kB of in-system programmable Flash 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 sensing applications, and digital interfaces such as UART, SMBus, and SPI. The device operates on a supply voltage range of 1.8 V to 3.6 V and is available in 16-pin SOIC, 20-pin QFN, or 24-pin QSOP packages.

Feature Summary

• Integrated Capacitance to Digital Converter supports buttons, sliders, wheels, and capacitive proximity sensing with fast conversion times.
• On-chip debug circuitry facilitates full-speed, non-intrusive in-system debugging without requiring external emulation hardware.
• Pipelined instruction architecture executes the majority of instructions in one or two system clocks for efficient processing.
• Capable of switching between internal and external clock sources on-the-fly to optimize power consumption.

Applications

• Capacitive touch sensing interfaces including buttons, sliders, and wheels
• Portable devices requiring low-power mixed-signal control
• Industrial monitoring systems utilizing analog input acquisition

Procurement Notes

Verify the specific package variant (SOIC-16, QFN-20, or QSOP-24) required for your design, as the suffix indicates physical form factor. Confirm that the component meets RoHS compliance standards if applicable to your region. Note that this family is designated as Not Recommended for New Designs; evaluate long-term availability and lifecycle status before finalizing procurement plans.

Selection Notes

Select this component when a cost-effective 8-bit solution with integrated capacitive sensing is required. Ensure the application fits within the 1.8 V to 3.6 V supply voltage constraints. Consider the limited pin count and memory size against project requirements. Verify that the 25 MHz maximum clock speed satisfies the real-time processing demands of the target system.

Part Context

This part belongs to the C8051F80x-83x family of mixed-signal microcontrollers. These devices are designed as complete System-on-a-Chip solutions, integrating analog peripherals, digital interfaces, and a high-performance CPU. The family emphasizes ease of development through on-chip debugging and in-system programming capabilities.

Replacement Considerations

Consult the official datasheet for pin-compatible alternatives within the C8051F8xx series. Verify functional equivalence regarding peripheral sets and memory sizes before substituting.