C8051F707-GM

Overview

The C8051F707-GM is a mixed-signal ISP Flash microcontroller from the C8051F70x/71x family, manufactured by Silicon Labs. It features a high-speed 8051 µC core operating at up to 25 MHz with 25 MIPS throughput. 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, analog comparators, and multiple digital interfaces such as UART, SMBus, and SPI. It operates within a supply voltage range of 1.8 V to 3.6 V and supports a temperature range of –40 °C to +85 °C.

Feature Summary

• High-speed pipelined 8051 core executing 70% of instructions in one or two system clocks
• Integrated capacitance-to-digital converter for sensing applications like buttons and touch screens
• On-chip debug circuitry enabling full-speed non-intrusive in-system debugging without external emulators
• Programmable internal oscillator providing precise clocking for crystal-less UART operation

Applications

• Capacitive sensing interfaces including buttons, sliders, wheels, and proximity detection
• Embedded USB connectivity implementations requiring on-chip clock recovery
• Industrial control systems utilizing integrated analog comparators and ADCs
• Portable battery-powered devices benefiting from low-voltage operation and power management modes

Procurement Notes

Verify component authenticity through authorized Silicon Labs distributors or certified suppliers. Confirm the specific package variant matches project requirements, as the C8051F70x family offers multiple pin configurations. Check for current lifecycle status notices, as this series may be marked not recommended for new designs. Ensure development tools are compatible with the C2 interface for programming and debugging.

Selection Notes

Select this MCU when a highly integrated solution combining analog sensing with digital communication is required. The inclusion of a capacitance-to-digital converter reduces external component count for touch interfaces. Evaluate the 10-bit ADC speed against application sampling needs. Consider the available I/O ports and peripheral sets relative to system complexity before choosing alternative members of the F70x family.

Part Context

This component belongs to the C8051F70x/71x mixed-signal microcontroller family designed for cost-sensitive embedded applications. It integrates significant analog functionality alongside a standard 8051 architecture. The family emphasizes ease of development through on-chip debugging and in-system programming capabilities. It targets markets requiring compact form factors and reduced bill-of-materials through high integration levels.

Replacement Considerations

Public confirmed substitute part numbers: C8051F707-GMR.