C8051F714-GM

Overview

The C8051F714-GM is a mixed-signal ISP Flash MCU from Silicon Labs, part of the C8051F70x/71x family. It features a high-speed pipelined 8051 core operating at up to 25 MHz with 25 MIPS throughput. The device integrates 16 kB of in-system programmable Flash memory and 512 bytes of internal data RAM. Key analog peripherals include a 10-bit ADC supporting up to 500 ksps, a capacitance-to-digital converter for touch sensing, and an analog comparator. It operates on a supply voltage range of 1.8 V to 3.6 V and supports industrial temperature ranges from -40 °C to +85 °C.

Feature Summary

• Integrates a capacitance-to-digital converter supporting up to 38 input channels for buttons, sliders, and touch screen sensing with fast conversion times.
• Features a high-speed 8051 microcontroller core with a pipelined instruction architecture executing most instructions in one or two system clocks.
• Includes on-chip debug circuitry enabling full-speed, non-intrusive in-system debugging without external emulators.
• Provides flexible digital peripherals including hardware-enhanced UART, SMBus, SPI, and multiple timer/counters.

Applications

• Capacitive touch sensing interfaces
• Industrial control systems
• Portable instrumentation

Procurement Notes

Verify component status before procurement as this series is marked Not Recommended for New Designs. Confirm package type matches design requirements. Ensure development tools are compatible with the CIP-51 core. Check for end-of-life notices or alternative recommendations from the manufacturer.

Selection Notes

Select this MCU for applications requiring integrated capacitive touch sensing alongside standard mixed-signal processing. Evaluate the 16 kB Flash limit against firmware size requirements. Consider the 1.8 V to 3.6 V supply range for power budgeting. Verify that the available I/O pins and peripheral counts meet system interface needs.

Part Context

This component belongs to the C8051F70x/71x family of mixed-signal microcontrollers. These devices are designed for highly integrated single-chip solutions combining analog and digital functions. The family emphasizes ease of development through on-chip debugging and in-system programming capabilities.

Replacement Considerations

Consult official documentation for current alternatives as this part is not recommended for new designs. Cross-reference pinouts and peripheral sets when selecting substitutes. Verify compatibility with existing software toolchains if migrating to a newer generation MCU.

FAQ

What is the maximum sampling rate of the ADC?

The integrated 10-bit Analog to Digital Converter supports sampling rates of up to 500 ksps.

How many channels does the capacitance-to-digital converter support?

The capacitance-to-digital converter supports up to 38 input channels for sensing applications.

Is external debugging hardware required?

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