C8051F350-GQ

Overview

The C8051F350-GQ is a fully integrated mixed-signal System-on-a-Chip microcontroller from Silicon Labs, featuring a high-speed pipelined 8051-compatible core capable of up to 50 MIPS. It includes 8 kB of in-system programmable Flash memory and 768 bytes of on-chip RAM. The device integrates a 24-bit or 16-bit sigma-delta ADC with an analog multiplexer and programmable gain amplifier, alongside two 8-bit current output DACs. Digital peripherals include enhanced UART, SMBus, SPI, four 16-bit timers, and a programmable counter array. It operates within a supply voltage range of 2.7 V to 3.6 V and supports temperatures from -40°C to +85°C.

Feature Summary

• Features a high-speed pipelined 8051-compatible microcontroller core with expanded interrupt handling capabilities.
• Integrates a 24-bit or 16-bit sigma-delta ADC subsystem with an 8-input multiplexer and programmable gain stage.
• Includes two separate 8-bit current output digital-to-analog converters (DACs) for precise signal generation.
• Provides full-speed, non-intrusive in-system debug functionality without requiring external emulation hardware.

Applications

• Analog-intensive data acquisition systems
• Precision sensor interface circuits
• Industrial control applications
• Portable instrumentation

Procurement Notes

Verify the component status before procurement as the datasheet indicates this family is not recommended for new designs. Confirm that the specific GQR suffix corresponds to the required 32-pin LQFP package variant. Ensure design reviews account for the manufacturer's recommendation regarding future product availability and lifecycle management.

Selection Notes

Select this component when high-resolution analog conversion is required alongside standard digital processing. The integrated 24-bit ADC and dual IDACs reduce external component count. Consider the 50 MIPS throughput for real-time control loops. Verify pin compatibility if migrating from other C8051F series devices, noting the specific I/O configuration available in the 32-pin package.

Part Context

This part belongs to the C8051F35x family of analog-intensive MCUs. It shares architectural similarities with the C8051F351 and F352 but differs in specific peripheral configurations such as ADC resolution options and USB presence. The device utilizes the CIP-51 core architecture, offering improved instruction execution speed compared to traditional 8051 implementations while maintaining software compatibility.

Replacement Considerations

Public confirmed substitute part numbers: None identified in verified documentation.