C8051F352

Overview

The C8051F352-GQR is an 8-bit mixed-signal microcontroller from the C8051F35x family, manufactured by Silicon Labs. It features a high-speed 8051 core operating at up to 50 MHz with pipelined architecture delivering 50 MIPS throughput. The device integrates 8 kB of in-system programmable Flash memory and 768 bytes of on-chip RAM. Key analog peripherals include a 24-bit sigma-delta ADC subsystem with up to eight input channels and a programmable gain amplifier, alongside two 8-bit current-output DACs. Digital interfaces encompass enhanced UART, SMBus, and SPI ports, supported by four 16-bit timers and a 16-bit programmable counter array.

Feature Summary

• Integrates a 24-bit sigma-delta ADC subsystem with programmable gain and multiplexer for high-resolution signal acquisition
• Includes two 8-bit current-output digital-to-analog converters (DACs) for precise analog output control
• Features a fully 8051-compatible CIP-51 core with pipelined instruction execution for high processing speed
• Provides non-intrusive on-chip debug circuitry supporting full-speed in-system debugging without external emulators

Applications

• Data acquisition systems requiring high-resolution analog input
• Industrial process control applications utilizing precision sensors
• Portable instrumentation powered by low-voltage supplies
• Embedded systems needing integrated analog-to-digital conversion capabilities

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm package integrity upon receipt, as surface-mount devices are sensitive to physical damage. Ensure compatibility with existing PCB footprints, specifically the 32-LQFP configuration. Review latest datasheet revisions for any updates to electrical characteristics or pin definitions before finalizing procurement specifications.

Selection Notes

Select this component when application requirements demand high-resolution analog conversion combined with standard 8051 compatibility. Evaluate the 24-bit ADC performance against simpler 10-bit alternatives if precision is critical. Consider the 50 MHz processing speed relative to algorithm complexity. Verify that the 2.7 V to 3.6 V supply range aligns with system power constraints and that the available I/O count meets interface requirements.

Part Context

This device belongs to the C8051F35x series of analog-intensive microcontrollers designed for mixed-signal applications. It shares architectural similarities with the C8051F350, F351, and F353 variants within the same family. These devices emphasize integration of precision analog blocks with robust digital processing cores, targeting cost-sensitive embedded designs that require significant on-chip peripheral functionality without external components.

Replacement Considerations

Public confirmed substitute part numbers: EFM8BB31F64I-D-QFN32R.