C8051F348-GQ

Overview

The C8051F348-GQ is an 8-bit microcontroller from Silicon Labs, part of the C8051F34x family. It features a high-speed 8051 core operating at up to 50 MHz with 25 MIPS performance. The device integrates 32 kB of Flash memory and 2.25 kB of RAM. It includes a full-speed USB 2.0 function controller with an integrated transceiver and clock recovery. Digital peripherals consist of 40 I/O pins, SPI, SMBus, two UARTs, four timers, and a PCA. The component operates within a voltage range of 2.7 V to 5.25 V and supports temperatures from -40 °C to +85 °C.

Feature Summary

• Integrates a full-speed USB 2.0 function controller with an on-chip transceiver and clock recovery circuitry, eliminating the need for external components.
• Features a pipelined 8051 CPU core capable of executing instructions in one or two system clocks for enhanced processing speed.
• Includes a programmable digital crossbar that allows flexible configuration of peripheral pin assignments.
• Supports non-intrusive in-system debugging via an on-chip debug interface without requiring external emulators.

Applications

• Embedded USB connectivity solutions
• Industrial control systems
• Point-of-sale terminals
• Medical diagnostic equipment

Procurement Notes

Verify the specific package type and suffix against official documentation before ordering. Confirm current lifecycle status as this series may be marked not recommended for new designs. Ensure compatibility with existing design constraints regarding voltage levels and thermal requirements.

Selection Notes

Select this model when a USB-enabled 8-bit MCU is required without external analog components like crystals or regulators. Compare memory sizes and I/O counts against other variants in the C8051F34x family to ensure sufficient resources for the target application.

Part Context

This component belongs to the C8051F34x Full Speed USB Flash MCU Family by Silicon Laboratories. The family provides mixed-signal SoC capabilities combining a high-performance 8051 core with extensive analog and digital peripherals. The C8051F348 variant specifically offers 32 kB of Flash and lacks the 10-bit ADC found in other members of the series.

Replacement Considerations

Check for updated silicon revisions or successor models within the same family. Verify pinout and register compatibility if substituting with other C8051F34x devices.