C8051F713-GMR

Overview

The C8051F713-GMR is an 8-bit 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 MIPS with a 25 MHz clock. The device integrates 16 kB of in-system programmable Flash memory, 512 bytes of internal data RAM, and 32 bytes of data EEPROM. 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. Digital interfaces encompass UART, SMBus, SPI, four timers, and a PCA. 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

• Integrates a capacitance-to-digital converter supporting up to 38 input channels for capacitive proximity and touch screen sensing applications.
• Features a high-speed 8051 microcontroller core with a pipelined architecture executing 70% of 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 clock source selection including a precision internal oscillator and support for external crystal or RC circuits.

Applications

• Capacitive touch sensing interfaces such as buttons, sliders, and wheels
• Mixed-signal data acquisition systems requiring ADC and comparator functions
• Embedded USB or serial communication devices utilizing UART and SMBus
• Battery-powered portable instruments benefiting from low-voltage operation

Procurement Notes

Verify the specific package variant corresponding to the -GM suffix against the official datasheet pinout diagrams before procurement. Confirm that the design accommodates the 1.8 V to 3.6 V supply voltage range and the specified industrial temperature limits. Ensure development tools are compatible with the CIP-51 core and C2 interface for programming and debugging.

Selection Notes

Select this component when a high integration level of analog and digital peripherals is required in a compact form factor. The inclusion of a dedicated capacitance-to-digital converter makes it suitable for touch-sensitive user interfaces. Consider the 16 kB Flash capacity and 512 B RAM for applications with moderate code size and data handling requirements. Evaluate the 25 MIPS throughput against processing demands.

Part Context

This device belongs to the C8051F70x/71x mixed-signal ISP Flash MCU family produced by Silicon Laboratories. The family shares a common architectural foundation featuring the CIP-51 core and extensive peripheral sets. Variants within the series differ primarily in memory sizes, I/O counts, and specific analog module configurations. The C8051F713 represents a specific configuration within this lineup optimized for mixed-signal control tasks.

Replacement Considerations

Consult the manufacturer's obsolescence notices and cross-reference guides for current alternatives. Verify compatibility of pinouts and register maps if substituting with other members of the C8051F7xx series or newer silicon generations.