C8051F806-GM

Overview

The C8051F806-GM is a mixed-signal ISP Flash MCU from the C8051F80x-83x family, manufactured by Silicon Labs. It features an 8-bit 8051 core operating at up to 25 MHz with pipelined architecture. The device includes 16 kB of in-system programmable Flash memory and 512 bytes of internal data RAM. Key peripherals include a 10-bit ADC supporting up to 500 ksps, a Capacitance to Digital Converter, comparators, three 16-bit timers, a PCA with PWM, and enhanced serial ports (UART, SMBus, 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

• Integrated Capacitance to Digital Converter supports buttons, sliders, wheels, and capacitive proximity sensing with auto-scan capabilities.
• On-chip debug circuitry facilitates full-speed, non-intrusive in-system debugging without requiring external emulators.
• Hardware-enhanced serial communication interfaces including UART, SMBus, and SPI for robust digital connectivity.
• High-speed 8051 core executes 70% of instructions in one or two system clocks for efficient processing.

Applications

• Capacitive touch interface implementations
• Battery-powered portable devices
• Industrial control systems
• Smart sensors

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status as specified in the datasheet. Check for end-of-life notices, as this family may be marked Not Recommended for New Designs. Ensure proper handling procedures are followed due to moisture sensitivity classification. Validate package dimensions against PCB land pattern requirements before integration.

Selection Notes

Evaluate memory requirements against the 16 kB Flash and 512-byte RAM limits. Consider peripheral availability such as the Capacitance to Digital Converter if touch sensing is needed. Assess power consumption profiles across active and stop modes. Verify voltage compatibility with the 1.8 V to 3.6 V operating range. Review pinout assignments for I/O flexibility using the priority crossbar decoder.

Part Context

This component belongs to the C8051F80x-83x mixed-signal MCU family from Silicon Labs. It shares architectural similarities with other members like the C8051F800 and C8051F812, differing primarily in memory size and peripheral configurations. The family emphasizes high integration and low cost for embedded applications.

Replacement Considerations

Consult the official product selection guide for compatible alternatives within the C8051F80x series. Verify pin-to-pin compatibility and peripheral equivalence before substitution. Note that newer designs should consider current recommended replacements due to potential obsolescence status.

FAQ

What is the maximum sampling rate of the integrated ADC?

The 10-bit ADC supports a maximum sampling rate of up to 500 ksps.

Does the C8051F806-GM support capacitive touch sensing?

Yes, it includes a Capacitance to Digital Converter that supports buttons, sliders, wheels, and capacitive proximity sensing.

Is external emulator hardware required for debugging?

No, the device features on-chip debug circuitry that allows full-speed, non-intrusive in-system debugging without external emulators.