C8051F901-D-GU

Overview

The C8051F901-D-GU is an 8-bit microcontroller from Silicon Labs featuring a high-speed CIP-51 core operating at up to 25 MIPS. It integrates 8 kB of in-system programmable Flash memory and 768 bytes of RAM. The device supports a supply voltage range of 0.9 V to 3.6 V, enabling operation in single-cell battery applications via a built-in DC-DC converter. Key peripherals include a 10-bit SAR ADC with up to 300 ksps throughput, two comparators, and multiple digital interfaces including SMBus, SPI, and UART.

Feature Summary

• Ultra-low power architecture with sleep modes as low as 10 nA for extended battery life
• Integrated SmaRTClock real-time clock functionality for precise timekeeping
• Flexible I/O configuration with 5 V tolerant ports and programmable drive strength
• On-chip debug circuitry supporting non-intrusive in-system debugging

Applications

• Single-cell or dual-cell battery-powered portable devices
• Low-power industrial sensor nodes
• Battery management systems requiring precise voltage monitoring
• Real-time clock applications in consumer electronics

Procurement Notes

Verify the specific suffix 'D' against the manufacturer's official documentation to confirm package type and temperature grade. Ensure the ordering code matches the exact memory size and peripheral configuration required for your design. Cross-reference the datasheet revision to confirm pinout compatibility and electrical characteristics before finalizing procurement.

Selection Notes

Select this component when designing ultra-low power systems requiring a small form factor and integrated analog peripherals. The built-in DC-DC converter allows efficient operation from a single lithium cell. Consider the 10-bit ADC resolution and comparator features if signal conditioning is needed on-chip. Verify that the 8 kB Flash capacity meets application firmware requirements.

Part Context

This part belongs to the C8051F9xx series of mixed-signal microcontrollers designed for battery-operated applications. It shares architectural similarities with the C8051F91x series but offers reduced Flash memory capacity. The series is characterized by its high integration level, combining analog and digital functions into a compact system-on-chip solution suitable for space-constrained designs.

Replacement Considerations

C8051F902-D-GUR: Offers 12-bit ADC resolution instead of 10-bit.