C8051F338-GMR

Overview

The C8051F338-GMR is a mixed-signal microcontroller from Silicon Labs featuring a high-speed 8051 core with up to 25 MIPS throughput at a 25 MHz clock. It integrates 16 kB of in-system programmable Flash and 768 bytes of internal data RAM. The device includes a 10-bit ADC supporting up to 200 ksps, a 10-bit current output DAC, and a programmable comparator. It operates on a supply voltage of 2.7 V to 3.6 V within a temperature range of –40 °C to +85 °C. Available in a 24-pin QFN package, it provides 21 port I/O pins.

Feature Summary

• Integrates a pipelined 8051 core capable of executing 70% of instructions in one or two system clocks for high throughput.
• Includes on-chip debug circuitry enabling full-speed, non-intrusive in-system debugging without external emulators.
• Features a precision 24.5 MHz internal oscillator that supports crystal-less UART operation and low-power suspend modes.
• Provides flexible interrupt handling and multiple digital peripherals including SMBus, SPI, and enhanced UART.

Applications

• Industrial control systems requiring mixed-signal processing
• Battery-powered devices utilizing low-power oscillators and suspend modes
• Data acquisition systems using the integrated 10-bit ADC and temperature sensor
• Communication interfaces leveraging hardware-enhanced serial ports

Procurement Notes

Verify component status as this part is marked Not Recommended for New Designs. Confirm package type matches the 24-pin QFN specification. Ensure design reviews account for the specific voltage range and temperature limits defined in the datasheet. Check for any relevant Product Change Notices regarding assembly or labeling updates before finalizing procurement plans.

Selection Notes

Select this component for applications needing a byte-programmable MCU with integrated analog peripherals. Consider the 24-pin QFN form factor for space-constrained designs. Evaluate the 10-bit ADC resolution and speed against application requirements. Verify compatibility with existing 8051 toolchains and development kits for efficient integration.

Part Context

This device belongs to the C8051F33x family of mixed-signal MCUs. It shares pin compatibility with the C8051F330 series but offers distinct memory and peripheral configurations. The family utilizes the CIP-51 architecture, combining standard 8051 functionality with additional digital and analog features on a single chip.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation.