C8051F341-GQ

Overview

The C8051F341-GQ is an 8-bit microcontroller from the Silicon Labs C8051F34x family, featuring a high-speed 8051 core operating at 48 MIPS. It integrates 64 kB of Flash memory and 4352 bytes of RAM within a 48-pin TQFP package. The device includes a full-speed USB 2.0 function controller with integrated transceiver and clock recovery, eliminating the need for external components. Digital peripherals consist of hardware-enhanced SPI, SMBus, two UARTs, four 16-bit timers, and a 16-bit PCA. The unit supports a supply voltage range of 2.7 V to 5.25 V and operates across a temperature range of -40 °C to +85 °C.

Feature Summary

• Integrated full-speed USB 2.0 function controller with built-in transceiver and clock recovery circuitry
• High-performance pipelined 8051 core executing up to 70% of instructions in one or two system clocks
• On-chip debug circuitry enabling non-intrusive in-system debugging without external emulators
• Programmable digital crossbar architecture allowing flexible peripheral-to-port pin mapping

Applications

• Medical diagnostic equipment requiring USB connectivity and analog processing
• Point-of-sale (POS) terminals and embedded weigh scales
• Embedded modems and voice over Internet protocol (VoIP) telephones
• Industrial control systems utilizing mixed-signal capabilities

Procurement Notes

Verify component authenticity by checking manufacturer markings against official datasheet specifications. Confirm package type matches the required 48-pin TQFP form factor. Ensure the revision level aligns with design requirements, noting that this series is marked as not recommended for new designs. Validate electrical characteristics against specific application voltage and temperature constraints before integration.

Selection Notes

Select this model when a complete single-chip USB solution is required without external PHY components. The 48 MHz operation and 64 kB Flash provide sufficient processing power for complex embedded tasks. Consider the available I/O count and peripheral set, specifically the dual UARTs and enhanced serial interfaces, to determine if it meets interface requirements compared to other variants in the F34x family.

Part Context

This component belongs to the C8051F34x Full Speed USB Flash MCU Family produced by Silicon Laboratories. It represents a highly integrated mixed-signal system-on-chip designed to reduce board space and component count. The device combines a fast 8051 processor with extensive analog and digital peripherals, targeting applications where USB communication and data acquisition are critical.

Replacement Considerations

Public confirmed substitute part numbers: C8051F340-GQ, C8051F342-GQ, C8051F343-GQ.