C8051F390-A-GMR

Overview

The C8051F390-A-GMR is an 8-bit mixed-signal microcontroller from Silicon Labs, featuring a pipelined CIP-51 core with up to 50 MIPS throughput at a 50 MHz clock. It integrates 16 kB of Flash memory, 1 kB of internal data RAM, and a precision temperature sensor accurate to ±2 °C. The device includes a 10-bit ADC with programmable throughput up to 500 ksps, two 10-bit current output DACs, and an analog comparator. It operates on a supply voltage of 1.8 V to 3.6 V and supports digital peripherals such as UART, SMBus, SPI, and six timers.

Feature Summary

• High-speed 8051-compatible core with pipelined architecture for efficient instruction execution
• Integrated mixed-signal peripherals including a high-resolution ADC, current-mode DACs, and temperature sensor
• On-chip debug circuitry enabling full-speed, non-intrusive in-system debugging without external emulators
• Flexible clocking system with internal oscillators supporting low-power modes and seamless switching

Applications

• Battery-powered portable devices requiring low power consumption
• Industrial control systems utilizing analog signal processing
• Consumer electronics with mixed-signal requirements
• Medical instrumentation needing precise temperature monitoring

Procurement Notes

Verify the component status before procurement as this part may be marked Not Recommended for New Designs. Confirm package type and suffix compatibility with existing designs. Check for available documentation updates or alternative recommendations from the manufacturer. Ensure supply chain stability due to potential lifecycle restrictions.

Selection Notes

Select this MCU for applications requiring high integration of analog and digital functions in a small form factor. Consider the extended temperature range if operating in harsh environments. Evaluate pin count and peripheral availability against specific design constraints. Review power consumption characteristics across different operating modes to optimize battery life.

Part Context

This component belongs to the C8051F39x family, which offers enhanced performance over previous generations like the C8051F33x. It maintains footprint and code compatibility while providing increased speed, more RAM, and additional features. The family is designed for cost-sensitive applications demanding robust mixed-signal capabilities.

Replacement Considerations

Check for direct pin-to-pin replacements within the same family that might have updated statuses. Consult official substitution guides for recommended alternatives if this part is discontinued. Verify electrical and functional equivalence before transitioning to any substitute component.