C8051F361-C-GQR

Overview

The C8051F361-C-GQR is a mixed-signal System-on-a-Chip microcontroller from the Silicon Labs C8051F36x family. It features a high-speed pipelined 8051-compatible core delivering up to 100 MIPS throughput with an on-chip PLL. The device integrates 32 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 up to 21 external inputs, a 10-bit current output DAC, two comparators, and a built-in temperature sensor. Digital interfaces encompass hardware-enhanced UART, SMBus, and SPI. The unit operates within a supply voltage range of 2.7 V to 3.6 V and supports an operating temperature range of –40 °C to +85 °C.

Feature Summary

• Integrated high-speed pipelined 8051 core with 100 MIPS performance and 2-cycle MAC engine
• On-chip debug circuitry enabling full-speed, non-intrusive in-system debugging without external emulators
• Mixed-signal architecture combining 10-bit ADC, 10-bit current DAC, and dual comparators
• Hardware-enhanced serial communication ports including UART, SMBus, and SPI

Applications

• Embedded systems requiring mixed-signal processing capabilities
• Industrial control applications utilizing onboard sensors and comparators
• Data acquisition systems leveraging the high-speed ADC and temperature sensor
• Communication devices using hardware UART and SMBus interfaces

Procurement Notes

Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm the specific suffix 'C' indicates commercial temperature grade compliance. Check for end-of-life status as this family may be marked not recommended for new designs. Ensure ESD handling protocols are followed during storage and assembly. Validate package integrity against the 32-pin LQFP specification before integration.

Selection Notes

Select this model when a fully integrated mixed-signal solution is required alongside standard 8051 compatibility. Consider the 32 kB Flash capacity and 1280 bytes RAM for application memory constraints. Evaluate the 32-pin LQFP package dimensions against PCB layout requirements. Verify that the 2.7–3.6 V supply range aligns with system power design. Assess if the onboard debug interface simplifies development compared to external tools.

Part Context

This component belongs to the C8051F36x series of mixed-signal ISP Flash MCUs by Silicon Laboratories. The series offers varying pin counts and peripheral configurations across TQFP, LQFP, and QFN packages. The C8051F361 variant specifically utilizes a 32-pin LQFP form factor. The family emphasizes single-chip integration to reduce external component count in embedded designs.

Replacement Considerations

Public confirmed substitute part numbers: None identified.