C8051F339-GM

Overview

The C8051F339-GM is a mixed-signal microcontroller from Silicon Labs, part of the C8051F33x family. It features an 8051-compatible core operating at up to 25 MHz with pipelined architecture delivering 25 MIPS throughput. The device integrates 16 kB of in-system programmable Flash memory and 768 bytes of internal data RAM (256 + 512). Key peripherals include four 16-bit timers, a Programmable Counter Array (PCA) with three capture/compare modules, SMBus, SPI, and UART interfaces. It operates within a supply voltage range of 2.7 V to 3.6 V and supports an industrial temperature range of -40 °C to +85 °C.

Feature Summary

• High-speed 8051 core with pipelined instruction execution for efficient processing
• Integrated on-chip debug circuitry enabling non-intrusive in-system debugging
• Flexible digital I/O with configurable crossbar and 5 V tolerance
• Comprehensive analog and digital peripheral set including multiple timers and serial ports

Applications

• Battery chargers
• Electronic toys and games
• Motor control systems
• Optical communication devices

Procurement Notes

Verify the specific suffix 'GM' corresponds to the QFN-24 package variant as indicated by the datasheet pinout diagrams. Confirm that the application does not require the ADC or DAC features present in the F336/F338 variants, as these are absent in the F339. Ensure the design accommodates the 2.7 V to 3.6 V supply voltage constraints and the specified industrial temperature range.

Selection Notes

Select this component when a compact, highly integrated MCU is required without the need for high-resolution analog-to-digital conversion or current-output digital-to-analog conversion found in sibling models. It is suitable for applications prioritizing digital control, timing precision, and serial communication over complex signal conditioning. Verify that the 16 kB Flash capacity meets firmware requirements.

Part Context

The C8051F339 belongs to the C8051F33x series of byte-programmable EPROM MCUs. This family shares footprint and code compatibility with the C8051F330 series. The C8051F339 specifically omits the 10-bit ADC and current-mode DAC found in the F336 and F338 counterparts, focusing instead on digital I/O and standard communication interfaces within a small form factor.

Replacement Considerations

The C8051F336, C8051F337, and C8051F338 are pin-compatible members of the same family. However, they include additional analog peripherals such as a 10-bit ADC and/or DAC which are not present in the F339. Direct substitution requires verifying that the extra analog features are not utilized in the existing design.