C8051F397-A-GMR

Overview

The C8051F397-A-GMR is an 8-bit mixed-signal microcontroller from Silicon Labs, utilizing the high-speed CIP-51 core with pipelined architecture. It features 16 kB of in-system programmable Flash memory and 1 kB of internal data RAM. The device integrates a 10-bit ADC with up to 500 ksps throughput, two 10-bit current output DACs, and a precision temperature sensor accurate to ±2 °C. Operating at frequencies up to 50 MHz, it supports supply voltages from 1.8 V to 3.6 V and includes on-chip debug circuitry for non-intrusive system debugging.

Feature Summary

• Integrated 10-bit analog-to-digital converter with programmable throughput and multiple input configurations
• On-chip debug circuitry enabling full-speed, non-intrusive in-system debugging without external emulators
• Precision temperature sensor providing calibrated accuracy across the operating temperature range
• Dual 10-bit current output digital-to-analog converters supporting continuous operation through resets

Applications

• Battery-powered instrumentation systems requiring low power consumption
• Industrial process control applications utilizing analog signal conditioning
• Consumer devices needing precise temperature monitoring and control
• Data acquisition systems employing high-speed sampling requirements

Procurement Notes

Verify component authenticity by checking manufacturer markings against official datasheet specifications. Confirm package integrity and pin alignment for the QFN-20 configuration. Ensure storage conditions comply with moisture sensitivity level requirements prior to assembly. Validate that the specific revision matches design documentation to avoid compatibility issues.

Selection Notes

Select this component when a compact 8-bit solution with integrated analog peripherals is required. The CIP-51 core offers enhanced performance over standard 8051 architectures. Consider the available I/O count and peripheral set relative to application constraints. Evaluate power modes to ensure compliance with system energy efficiency targets.

Part Context

This part belongs to the C8051F39x/37x family of mixed-signal microcontrollers. These devices are designed for applications demanding high integration within small form factors. The family shares common architectural features while varying in memory size and peripheral availability. This specific model represents a variant optimized for general-purpose mixed-signal processing tasks.

Replacement Considerations

Consult the official datasheet for direct pin-compatible alternatives within the same series. Verify functional equivalence regarding memory capacity and peripheral sets before substitution. Check for any updates or revisions that may affect electrical characteristics or software compatibility.