C8051F392-A-GMR

Overview

The C8051F392-A-GMR is a mixed-signal microcontroller featuring a pipelined 8051 core operating at up to 50 MHz. It integrates 16 kB of Flash memory, 1 kB of internal data RAM, and 512 bytes of EEPROM. The device includes a 10-bit ADC with up to 16 external inputs, two 10-bit current output DACs, and a comparator. Communication interfaces consist of two SMBus ports, one SPI port, and one UART. It operates on a supply voltage between 1.8 V and 3.6 V within an industrial temperature range of -40 °C to +105 °C.

Feature Summary

• Integrated high-speed 8051 core with pipelined architecture for efficient instruction execution
• On-chip analog peripherals including a 10-bit ADC, dual 10-bit DACs, and precision temperature sensor
• Comprehensive digital communication capabilities via multiple serial ports and timers
• Supports non-intrusive in-system debugging through built-on-chip debug circuitry

Applications

• Battery-powered systems requiring low power consumption
• Industrial control applications needing precise signal conditioning
• Motor control implementations utilizing timer and PWM features
• Data acquisition systems leveraging integrated analog-to-digital conversion

Procurement Notes

Verify the specific suffix 'GMR' indicates tape-and-reel packaging when sourcing components. Confirm that the component falls under the 'Not Recommended for New Designs' classification per Silicon Labs documentation. Ensure compatibility with existing designs rather than initiating new development projects using this part number.

Selection Notes

Select this component for legacy system maintenance or upgrades where the C8051F39x family is already established. Evaluate the trade-off between the mature feature set and the manufacturer's recommendation against new designs. Consider alternative modern microcontrollers if long-term supply assurance is critical for future product generations.

Part Context

This part belongs to the C8051F39x series of mixed-signal microcontrollers from Silicon Labs. It shares architectural similarities with other members like the C8051F390 and C8051F396, differing primarily in memory size and peripheral availability. The series represents a fully integrated System-on-Chip solution combining digital processing with extensive analog capabilities.

Replacement Considerations

Consult official Silicon Labs documentation for confirmed substitute part numbers within the same family. Verify pinout and register compatibility before transitioning to variants such as the C8051F390 or C8051F396.