C8051F337-GMR

Overview

The C8051F337-GMR is a mixed-signal System-on-a-Chip microcontroller from Silicon Labs, part of the C8051F33x family. It features a high-speed pipelined 8051-compatible core delivering up to 25 MIPS at a 25 MHz clock frequency. The device integrates 16 kB of in-system programmable Flash memory and 768 bytes of internal data RAM. Key peripherals include four general-purpose 16-bit timers, a Programmable Counter Array (PCA) with three capture/compare modules, and hardware-enhanced serial interfaces such as UART, SMBus, and SPI. 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

• Integrated on-chip debug circuitry enabling full-speed, non-intrusive in-system debugging without external emulators.
• Hardware-enhanced communication interfaces including UART, SMBus, and SPI for reliable data transfer.
• Programmable digital crossbar allows flexible assignment of peripheral functions to I/O pins.
• Built-in precision internal oscillator supports crystal-less UART operation and low-power suspend modes.

Applications

• Embedded USB connectivity solutions
• Industrial control systems
• Portable instrumentation

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific ordering suffix matches the required package type and tape-and-reel specifications. Check for current lifecycle status, as this series may be subject to discontinuation notices. Ensure environmental compliance documentation aligns with project requirements.

Selection Notes

Select this component when a fully integrated mixed-signal MCU with on-chip debug capabilities is required. It is suitable for applications needing 16 kB of Flash and extensive digital peripherals. Consider alternative members of the C8051F33x family if analog features like ADC or DAC are needed, as these are not present in the F337 variant.

Part Context

This device belongs to the C8051F33x family of byte-programmable EPROM MCUs. It shares architectural similarities with the C8051F330 family but offers enhanced performance and integrated debug features. The GMR suffix indicates a specific surface-mount package configuration intended for automated assembly processes.

Replacement Considerations

Direct pin-compatible replacements within the same family include the C8051F336, C8051F338, and C8051F339. Verify that the substitute part number includes the necessary analog peripherals if those functions are utilized in the design.

FAQ

Does the C8051F337 include an onboard ADC?

No, the C8051F337 does not include an onboard ADC. Analog-to-digital conversion capabilities are available only in the C8051F336 and C8051F338 variants within this family.

What is the maximum instruction throughput?

The device delivers up to 25 MIPS throughput when operating at its maximum clock frequency of 25 MHz.