C8051F371-A-GM

Overview

The C8051F371-A-GM is an 8-bit mixed-signal MCU featuring a high-speed 50 MIPS pipelined 8051 core. It integrates 16 kB of in-system programmable Flash, 512 bytes of byte-programmable EEPROM, and up to 1 kB of internal data RAM. The device includes a 49 MHz precision internal oscillator, a low-frequency oscillator, and comprehensive analog peripherals such as a 10-bit ADC with 500 ksps throughput, two 10-bit current DACs, and a comparator. It operates on a supply voltage of 1.8 V to 3.6 V within the -40 °C to +85 °C temperature range.

Feature Summary

• On-chip debug circuitry enables full-speed, non-intrusive in-system debugging without external emulators.
• Integrated precision temperature sensor accurate to ±2 °C across the operating range without user calibration.
• Supports crystal-less UART operation via the precision internal oscillator for simplified system design.

Applications

• Battery-powered systems requiring low power consumption and precise timing
• Industrial control applications utilizing integrated analog signal conditioning
• Data acquisition systems leveraging the high-speed ADC and multiple I/O ports

Procurement Notes

Verify the specific suffix 'A' against the manufacturer's latest documentation to confirm package type and temperature grade. Confirm that the required EEPROM endurance and Flash sector sizes align with application write cycles. Ensure the QFN-24 package dimensions match the PCB land pattern requirements.

Selection Notes

Select this component when a complete mixed-signal solution is needed to reduce bill-of-materials count. The integrated analog peripherals eliminate the need for external ADCs or DACs. Consider the 50 MIPS throughput if real-time processing of sensor data is required within the specified voltage and temperature constraints.

Part Context

This part belongs to the C8051F39x/37x family of fully integrated mixed-signal microcontrollers from Silicon Labs. The family shares a common architecture but varies in memory size, package options, and peripheral configurations. The C8051F37x subset specifically targets industrial and commercial environments with a defined operating temperature range.

Replacement Considerations

Public confirmed substitute part numbers: None identified in verified documentation.