C8051F964-B-GQR

Overview

The C8051F964-B-GQR is a mixed-signal System-on-Chip microcontroller from Silicon Labs, integrating a high-speed 8051-compatible CPU with extensive peripheral capabilities. It features up to 256 KB of in-system programmable Flash memory and 16 KB of RAM. Key integrated components include a 12-bit ADC, a 12-bit DAC, multiple timers, and communication interfaces such as SPI, I2C, and UART. The device operates at supply voltages ranging from 2.7 V to 3.6 V and supports industrial temperature ranges, making it suitable for precision data acquisition and control applications.

Feature Summary

• Integrates a high-performance 8051-compatible processor core with real-time emulation support for efficient debugging and development.
• Includes a versatile mixed-signal subsystem featuring a 12-bit analog-to-digital converter and a 12-bit digital-to-analog converter for precise signal processing.
• Provides comprehensive connectivity options with multiple serial communication interfaces including SPI, I2C, and UART for system integration.

Applications

• Precision data acquisition systems requiring analog signal conditioning and conversion
• Industrial process control units utilizing embedded logic and sensor interfacing
• Battery-powered instrumentation benefiting from low-power operation modes

Procurement Notes

Verify the specific suffix 'B' indicates the industrial temperature grade when sourcing this component. Confirm the 'GQR' package designation corresponds to the 48-lead QFN footprint required for your PCB layout. Ensure that the ordering part number matches the exact memory configuration and peripheral set documented in the official datasheet to avoid functional mismatches in production.

Selection Notes

Select this model when an application demands both high-speed digital processing and accurate analog measurement within a single chip. It is appropriate for designs needing multiple communication buses and on-chip programmability without external memory expansion. Consider the available GPIO count and timer resources against project requirements before choosing over simpler or more complex variants in the family.

Part Context

This component belongs to the C8051F9xx series of mixed-signal System-on-Chips. These devices are designed to reduce bill-of-materials costs by integrating common peripherals directly onto the silicon die. The series emphasizes ease of use through full in-system programming capabilities and compatibility with standard development tools, targeting cost-sensitive embedded control markets.

Replacement Considerations

Check for direct pin-compatible upgrades within the C8051F9xx series that offer increased Flash or RAM capacity. Verify if alternative packages from the same manufacturer provide the same electrical characteristics but different thermal or mechanical properties for board space optimization.