C8051F131-GQR

Overview

The C8051F131-GQR 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 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 SMBus, SPI, and dual UARTs. It operates within a 3.0 V to 3.6 V supply range at maximum speed and supports 100-Pin TQFP packaging.

Feature Summary

• High-speed 8051 core with pipelined architecture for efficient instruction execution
• Integrated 10-bit SAR ADC with programmable amplifier gain and windowed interrupt generation
• On-chip JTAG debug circuitry supporting breakpoints and non-intrusive in-circuit debugging
• Flexible clocking system with 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 JTAG debugging capabilities
• Communication interfaces using concurrent serial ports

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm RoHS compliance status as indicated in official documentation. Check for end-of-life notices, as this family may be marked not recommended for new designs. Ensure ordering suffixes match required package types and temperature ranges specified in the datasheet.

Selection Notes

Select this model when 64 kB Flash memory and 10-bit ADC resolution are required. Consider the 100-Pin TQFP package for expanded I/O availability. Evaluate power consumption against the 3.0 V to 3.6 V operating range. Compare performance needs against the 100 MIPS capability before choosing alternative families.

Part Context

This component belongs to the C8051F12x/13x series of mixed-signal microcontrollers. It shares architectural similarities with other members like the C8051F130 and C8051F132, differing primarily in memory size and specific peripheral configurations. The GQR suffix denotes the TQFP package variant suitable for surface mount applications.

Replacement Considerations

Public confirmed substitute part numbers: C8051F130-GQR, C8051F132-GQR.