C8051F920-GQR

Overview

The C8051F920-GQR is an 8-bit microcontroller from the Silicon Labs C8051F92x series, featuring a high-speed CIP-51 core operating at up to 25 MIPS with a 25 MHz clock. It integrates 32 kB of in-system programmable Flash memory and 4352 bytes of internal data RAM. The device supports a supply voltage range of 0.9 V to 3.6 V, utilizing a built-in DC-DC converter for one-cell mode operation down to 0.9 V. Key peripherals include a 10-bit SAR ADC with 300 ksps throughput, two comparators, and a SmaRTClock real-time clock.

Feature Summary

• Integrated 10-bit SAR ADC with programmable throughput up to 300 ksps and 16-bit auto-averaging accumulator
• Built-in DC-DC converter enabling single-cell battery operation from 0.9 V to 1.8 V
• Hardware SmaRTClock oscillator supporting low-power real-time clock functions
• On-chip debug circuitry facilitating full-speed non-intrusive in-system debugging

Applications

• Single-cell or dual-cell battery-powered embedded systems
• Low-power portable instrumentation requiring precise analog sensing
• Real-time clock applications utilizing hardware SmaRTClock functionality
• Industrial control interfaces using SMBus, SPI, and UART communication

Procurement Notes

Verify the specific suffix against the manufacturer's current ordering guide to confirm package type and temperature grade. Confirm RoHS compliance status and moisture sensitivity level prior to assembly planning. Check for any recent product change notifications regarding pinout or electrical characteristics updates.

Selection Notes

Select this component when a low-voltage 8051 architecture is required with integrated analog-to-digital conversion capabilities. The built-in DC-DC converter makes it suitable for designs powered by a single lithium cell. Ensure the application utilizes the available 24 port I/O pins and requires the specified 32 kB program memory capacity.

Part Context

This part belongs to the C8051F9xx family of mixed-signal microcontrollers designed for cost-sensitive, low-power applications. The F92x variant specifically provides 32 kB of Flash memory compared to the 64 kB found in the F93x series. Both share identical peripheral sets and core architectures within the same package options.

Replacement Considerations

C8051F930-G-GQR offers identical functionality with increased 64 kB Flash memory.