C8051F131-GQ

Overview

The C8051F131-GQ is an 8-bit microcontroller from the Silicon Labs C8051F12x/13x family, featuring a pipelined 8051 core with up to 100 MIPS throughput. It includes 64 kB of in-system programmable Flash memory and 8448 bytes of internal data RAM. The device integrates a 10-bit SAR ADC with programmable gain and throughput up to 100 ksps, two analog comparators, and a voltage reference. Digital peripherals include hardware SMBus, SPI, and dual UARTs. It operates within a 2.7 V to 3.6 V supply range and supports -40 °C to +85 °C temperatures.

Feature Summary

• High-speed 8051 core with pipelined architecture executing most instructions in one or two system clocks
• Integrated 10-bit SAR ADC with programmable amplifier gain and windowed interrupt generation
• On-chip JTAG debug circuitry supporting full-speed non-intrusive in-circuit debugging
• Flexible clocking options including internal precision oscillator and phase-locked loop technology

Applications

• Industrial control systems requiring high-speed processing
• Data acquisition applications utilizing integrated analog peripherals
• Embedded systems needing on-chip debugging capabilities
• Communication interfaces using concurrent serial ports

Procurement Notes

Verify component authenticity through authorized distributors. Confirm package type matches design requirements. Check for RoHS compliance status. Ensure operating temperature range aligns with application environment. Review datasheet revision history for any updates.

Selection Notes

Consider memory size requirements when choosing between variants. Evaluate analog peripheral needs such as ADC resolution and DAC availability. Assess clock speed requirements against power consumption constraints. Verify pinout compatibility with existing PCB layouts. Check for specific feature sets like MAC engine availability.

Part Context

This part belongs to the C8051F12x/13x series of mixed-signal microcontrollers. These devices are designed for applications requiring high performance and rich analog integration. The family offers various memory configurations and peripheral combinations to suit different system needs.

Replacement Considerations

Check for direct pin-to-pin replacements within the same family. Verify functional equivalence regarding memory and peripheral counts. Ensure software compatibility with existing codebases. Consider lead times and availability of alternative sources.