C8051F707-GQ

Overview

The C8051F707-GQ is an 8-bit mixed-signal microcontroller from Silicon Labs, based on the high-speed CIP-51 core. It features up to 16 kB of ISP Flash memory and 512 bytes of internal data RAM. The device integrates a 10-bit ADC with speeds up to 500 ksps, a capacitance-to-digital converter supporting up to 38 channels, and analog comparators. Operating at clock frequencies up to 25 MHz, it supports supply voltages from 1.8 V to 3.6 V and functions within a temperature range of –40 °C to +85 °C.

Feature Summary

• Integrates a capacitance-to-digital converter for sensing applications including buttons, sliders, and touch screens.
• Features a pipelined instruction architecture that executes most instructions in one or two system clocks.
• Includes on-chip debug circuitry enabling full-speed, non-intrusive in-system debugging without external emulators.
• Supports flexible clock source switching between internal oscillators and external crystals or RC circuits.

Applications

• Capacitive sensing interfaces such as touch screens and proximity detection
• Data acquisition systems utilizing the high-speed analog-to-digital converter
• Battery-powered devices requiring low-voltage operation and power management modes

Procurement Notes

Verify the specific package variant, as the GQ suffix denotes a TQFP form factor. Confirm the exact memory configuration matches project requirements, as the family includes variants with differing Flash sizes. Ensure the design accounts for the 1.8 V to 3.6 V supply voltage range and industrial temperature specifications during component selection.

Selection Notes

Select this component when a highly integrated solution combining capacitive sensing and high-speed analog conversion is required. The CIP-51 core offers significant performance advantages over traditional 8051 architectures. Consider the available digital peripherals and programmable crossbar for flexible I/O mapping in space-constrained designs.

Part Context

This part belongs to the C8051F70x/71x family of mixed-signal ISPs Flash MCUs. The series is characterized by its combination of digital processing capabilities with extensive analog front-end modules. The family targets applications needing precise signal conditioning alongside robust control logic in a single chip.

Replacement Considerations

Direct substitutes include other members of the C8051F70x/71x series, such as the C8051F706 or C8051F708, provided pin compatibility and memory requirements align. Verify functional equivalence regarding peripheral counts before substitution.

FAQ

What is the maximum sampling rate of the integrated ADC?

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

How many input channels does the capacitance sense module support?

The Capacitance to Digital Converter supports up to 38 input channels for sensing applications.

Is external emulator hardware required for debugging?

No, the device features on-chip debug circuitry that facilitates full-speed, non-intrusive in-system debugging without requiring an emulator.