MIC74BQS

I/o Expanders Overview

The MIC74BQS is a fully programmable serial-to-parallel I/O expander compatible with the SMBus protocol. It features an integrated fan speed controller and provides eight general-purpose I/O lines. The device supports open drain and push-pull output types with source/sink currents of 7mA and 10mA respectively. It operates on a 2.7V to 3.6V supply voltage and communicates via I2C/SMBus at a clock frequency of 100 kHz. The component includes an interrupt output capability and is housed in a 16-QSOP package.

I/o Expanders Feature Summary

• Fully programmable serial-to-parallel I/O expansion
• Integrated fan speed control functionality
• Compatible with SMBus and I2C protocols
• Configurable open drain or push-pull outputs

I/o Expanders Applications

• Consumer electronics systems
• Industrial automation controllers
• Embedded system I/O expansion
• Fan management in electronic devices

I/o Expanders Procurement Notes

Verify the specific ordering suffix, such as -TR for tape and reel packaging, against your manufacturing requirements. Confirm that the 16-QSOP package dimensions align with your PCB layout constraints. Ensure the supplier provides official Microchip Technology documentation to validate authenticity and technical specifications before finalizing procurement.

I/o Expanders Selection Notes

Select this component when an SMBus-compatible I/O expander with dedicated thermal management capabilities is required. The choice is appropriate for designs needing configurable digital outputs with moderate current drive. Consider the 100 kHz interface speed and 8-channel capacity relative to system complexity and bus load requirements.

I/o Expanders Part Context

The MIC74BQS belongs to the MIC74 series of I/O expanders manufactured by Microchip Technology. This series is designed to provide flexible digital input and output solutions for embedded applications. The BQS variant specifically denotes the 16-QSOP package configuration and standard operating parameters within the product family.

I/o Expanders Replacement Considerations

No public confirmed substitute part numbers are available in the provided documentation.