C8051F368-C-GQ

Overview

The C8051F368-C-GQ is an 8-bit mixed-signal ISP Flash microcontroller from the Silicon Labs C8051F36x family. It features a high-speed CIP-51 core operating at up to 100 MIPS with an on-chip PLL, utilizing a pipelined architecture that executes 70% of instructions in one or two system clocks. The device includes 16 kB of in-system programmable Flash memory and 1280 bytes of internal data RAM. Key analog peripherals include a 10-bit ADC supporting up to 200 ksps with 21 external inputs, a 10-bit current output DAC, and two comparators. Digital interfaces comprise hardware-enhanced UART, SMBus, SPI, four 16-bit timers, and a 16-bit PCA. It operates within a supply voltage range of 2.7–3.6 V for 50 MIPS or 3.0–3.6 V for 100 MIPS performance.

Feature Summary

• High-performance CIP-51 core delivering up to 100 MIPS throughput via on-chip PLL and pipelined instruction execution.
• Integrated mixed-signal capabilities including a 10-bit ADC with 200 ksps sampling rate and a 10-bit current output DAC.
• Comprehensive digital peripheral set featuring hardware UART, SMBus, SPI, four 16-bit timers, and a 16-bit Programmable Counter Array.
• On-chip debug circuitry enabling full-speed, non-intrusive in-system debugging without external emulators.

Applications

• Industrial control systems requiring mixed-signal processing
• Embedded applications needing precise analog-to-digital conversion
• Communication devices utilizing hardware serial interfaces
• Motor control loops using timer and PWM capabilities

Procurement Notes

Verify component authenticity through authorized distribution channels. Confirm package integrity upon receipt, as the LQFP-32 form factor requires careful handling during soldering. Ensure design compatibility with the specified 2.7–3.6 V operating range. Review the datasheet for absolute maximum ratings to prevent electrical overstress. Validate firmware development tool support for the CIP-51 architecture prior to production integration.

Selection Notes

Select this model when 16 kB of Flash memory suffices for application code, distinguishing it from the 32 kB variants in the same family. Choose the LQFP-32 package for space-constrained designs compared to the TQFP-48 option. Consider the integrated 10-bit ADC and DAC if external signal conditioning components are undesirable. Evaluate power consumption requirements against the available suspend and shutdown modes for battery-operated systems.

Part Context

This component belongs to the C8051F36x series of mixed-signal microcontrollers, which share a common CIP-51 core and peripheral architecture. Variants within the family differ primarily in Flash capacity (16 kB vs 32 kB) and physical package options (TQFP-48, LQFP-32, QFN-28). The C8051F368-C-GQ specifically utilizes the 32-pin LQFP package and contains 16 kB of Flash memory, positioning it as a mid-range solution within the family's pin-count constraints.

Replacement Considerations

Direct substitutes within the C8051F36x family include the C8051F369-C-GQ, which shares the same LQFP-32 package and 16 kB Flash capacity but may differ in specific analog peripheral availability or revision status. Other family members like the C8051F361-C-GQ offer identical functionality but utilize a different package footprint. Verify pinout compatibility and Flash size equivalence before substitution.