C8051F352R

Overview

The C8051F352R 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 16-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

• High-performance 8051 core with pipelined instruction execution for fast processing speeds
• Integrated 16-bit ADC subsystem with programmable gain and multiplexer for precise signal acquisition
• On-chip debug circuitry enabling non-intrusive in-system debugging without external emulators
• Flexible digital I/O with 5 V tolerance and configurable crossbar for versatile peripheral mapping

Applications

• Analog-intensive data acquisition systems requiring high-resolution signal conversion
• Industrial control applications utilizing robust communication interfaces like SMBus and SPI
• Portable instrumentation benefiting from low-power stop mode operation
• Embedded systems needing in-circuit reprogrammable firmware storage

Procurement Notes

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

Selection Notes

Select this model when specific analog resolution and speed requirements align with the 16-bit ADC capabilities. Consider the 8 kB Flash limit for complex firmware applications. Evaluate power consumption profiles against the typical operating current specifications. Ensure development tools support the C2 interface for efficient programming and debugging workflows during the design phase.

Part Context

This component belongs to the C8051F35x series of mixed-signal microcontrollers designed for analog-heavy applications. It shares architectural similarities with other members of the F35x family but offers specific memory and peripheral configurations tailored for precision measurement tasks. The device represents Silicon Labs' strategy to integrate high-speed digital processing with sophisticated analog front-ends on a single chip.

Replacement Considerations

EFM8BB31F64I-D-QFN32R is a documented alternative within the Silicon Labs portfolio.