C8051F974-A-GM

Overview

The C8051F974-A-GM is an 8-bit microcontroller from Silicon Labs, based on the 8051 core architecture. It features 16 kB of Flash program memory and 4 kB of RAM. The device operates at a maximum clock frequency of 25 MHz and includes a 10-bit ADC with 28 channels. It provides 28 I/O pins and supports interfaces including I2C, SPI, and UART. Operating voltage ranges from 1.8 V to 3.6 V, with a working temperature range of -40°C to +85°C. The component is housed in a QFN-32 package.

Feature Summary

• Integrates low power capacitive sensing capabilities for touch applications.
• Includes a high-resolution 10-bit analog-to-digital converter with multiple input channels.
• Supports standard digital communication protocols via integrated serial interfaces.

Applications

• Battery-powered portable devices requiring low power consumption
• Capacitive touch sensor interface designs
• General-purpose embedded control systems

Procurement Notes

Verify current availability status as this specific part number may be discontinued or subject to limited supply. Confirm that the QFN-32 package dimensions and pinout match your PCB footprint requirements. Ensure compatibility with existing development tools and debuggers for the C8051F97x series before finalizing procurement decisions.

Selection Notes

Select this component when a compact 8-bit MCU with integrated capacitive touch sensing is required. It is suitable for designs needing moderate code storage and analog input resolution within a small form factor. Consider alternative members of the C8051F97x family if higher memory capacity or different pin counts are necessary.

Part Context

This microcontroller belongs to the C8051F97x series, which focuses on low-power operation and integrated capacitive sensing features. The series utilizes the standard 8051 instruction set while offering enhanced peripheral integration for cost-sensitive and space-constrained applications.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Consult official Silicon Labs resources for end-of-life notifications or recommended upgrades within the C8051F97x family.