C8051F332-GM

Overview

The C8051F332-GM is a mixed-signal ISP Flash microcontroller from Silicon Labs, featuring a high-speed 8051 core with up to 25 MIPS throughput at a 25 MHz clock. It includes 4 kB of in-system programmable Flash memory and 768 bytes of internal data RAM (256 + 512). Key analog peripherals include a 10-bit ADC supporting up to 200 ksps with 16 external inputs and a built-in temperature sensor. The device operates on a supply voltage of 2.7 to 3.6 V and is housed in a 20-pin QFN package.

Feature Summary

• Integrated 10-bit ADC with multiple input channels and a built-in temperature sensor for precise analog signal acquisition.
• High-speed pipelined 8051 CPU architecture delivering efficient instruction execution and expanded interrupt handling capabilities.
• Comprehensive digital peripheral set including hardware-enhanced UART, SMBus, SPI, four general-purpose timers, and a Programmable Counter Array.

Applications

• Data acquisition systems requiring multi-channel analog input processing
• Embedded control applications utilizing serial communication interfaces
• Battery-powered devices benefiting from low-power stop mode operation

Procurement Notes

Verify the specific ordering suffix to confirm the package type and temperature range. Confirm that the design accommodates the 2.7 V to 3.6 V supply voltage requirements. Check current documentation status as this series may be marked Not Recommended for New Designs. Ensure compatibility with existing development tools for the CIP-51 core.

Selection Notes

Select this component when a balance of analog precision and digital processing is required within a compact footprint. The inclusion of a 10-bit ADC and multiple serial ports supports complex sensor integration. Consider the 20-pin QFN package constraints for PCB layout. Evaluate power consumption profiles against application duty cycles.

Part Context

This part belongs to the C8051F33x family of mixed-signal microcontrollers. These devices integrate a high-speed 8051 core with extensive on-chip resources, reducing the need for external components. The family shares common architectural features but varies in memory size and peripheral configurations.

Replacement Considerations

Consult the manufacturer's product selection guide for direct functional equivalents within the C8051F series. Verify pinout compatibility if substituting with other members of the F33x family. Review updated datasheets for any changes in electrical characteristics or recommended design practices.