C8051F302-GMR

Overview

The C8051F302-GMR is a mixed-signal ISP Flash microcontroller from Silicon Labs, featuring an 8-bit CIP-51 core with up to 25 MIPS throughput at a 25 MHz clock. It integrates 8 kB of Flash memory and 256 bytes of internal data RAM. The device includes an 8-bit ADC supporting up to 500 ksps with eight external inputs and programmable amplifier gains. Supply voltage ranges from 2.7 V to 3.6 V, with typical operating current of 6.6 mA at 25 MHz and 14 μA at 32 kHz. It operates within a temperature range of –40 °C to +85 °C.

Feature Summary

• Integrated on-chip debug circuitry enabling full-speed, non-intrusive in-system debugging without external emulators.
• Programmable digital I/O and crossbar architecture allowing flexible mapping of internal digital resources to physical pins.
• Hardware-enhanced UART and SMBus serial ports for robust communication capabilities.
• Built-in comparator with programmable hysteresis and response time, configurable as an interrupt or reset source.

Applications

• Industrial control systems
• Consumer electronics
• Motor control applications
• Medical devices

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific ordering suffix matches the required package type and temperature rating. Check for RoHS compliance status and ensure the part number aligns with current availability, as this family may have lifecycle restrictions.

Selection Notes

Select the C8051F302-GMR when an 8-bit MCU with integrated analog peripherals is required. Ensure the 8-bit ADC resolution and 8 kB Flash capacity meet application needs. Verify that the 11-pin QFN package fits the PCB layout constraints. Consider power consumption requirements against the specified operating currents at different clock speeds.

Part Context

This component belongs to the C8051F30x series of mixed-signal microcontrollers. The 'GMR' suffix indicates a tape-and-reel packaging format suitable for automated surface-mount assembly. The device utilizes the CIP-51 core, which offers improved instruction execution speed compared to standard 8051 architectures while maintaining compatibility.

Replacement Considerations

Consult official documentation for verified substitute part numbers within the same product family or equivalent performance tiers. Cross-reference pinouts and electrical characteristics carefully before substitution.