C8051F398-A-GM

Overview

The C8051F398-A-GM is an 8-bit mixed-signal microcontroller from the Silicon Labs C8051F39x family. It features a pipelined 8051 core with up to 50 MIPS throughput at a 50 MHz clock frequency. The device includes 16 kB of in-system programmable Flash memory, 1 kB of internal data RAM, and a precision temperature sensor accurate to ±2 °C. It operates within a supply voltage range of 1.8 V to 3.6 V and supports an industrial temperature range of –40 °C to +105 °C. The component is housed in a compact 20-pin QFN package.

Feature Summary

• High-performance 8051 core with pipelined architecture for efficient instruction execution
• Integrated analog peripherals including a 10-bit ADC and two 10-bit current output DACs
• On-chip debug circuitry enabling non-intrusive in-system debugging without external emulators
• Low power consumption capabilities with specific active and stop mode current characteristics

Applications

• Industrial control systems requiring precise temperature monitoring
• Battery-powered devices utilizing low-power operational modes
• Data acquisition systems using integrated analog-to-digital conversion
• Embedded applications needing in-circuit reprogrammable firmware storage

Procurement Notes

Verify the component status as the datasheet indicates this family is Not Recommended for New Designs. Confirm that the specific ordering suffix matches the required package and temperature grade. Ensure compatibility with existing designs rather than initiating new development projects due to potential future availability constraints.

Selection Notes

Select this model when a footprint-compatible upgrade from the C8051F33x series is required. It provides increased speed and extended temperature ranges compared to previous generations. Consider the 20-pin QFN form factor for space-constrained layouts. Evaluate the available GPIO count and peripheral set against application requirements before finalizing the selection.

Part Context

This part belongs to the C8051F39x/37x family, which serves as the next generation to the C8051F33x MCUs. The family maintains hardware and code compatibility with field-proven predecessors while offering enhanced performance. It integrates mixed-signal capabilities on a single chip, reducing system complexity and component count for embedded designers.

Replacement Considerations

The C8051F396-A-GM is a confirmed substitute within the same family featuring identical pinouts and specifications but with reduced Flash memory capacity.