MIC74YQS MIC74 by Microchip Technology

2-Wire Serial I/O Expander & Fan Controller

Status: Unknown
Series: -
RoHS: Unknown
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The MIC74 is a fully programmable serial-to-parallel I/O expander compatible with the SMBus™ (system management bus) protocol. It acts as a "slave" on the bus, providing eight independent I/O lines. Each I/O bit can be individually programmed as an input or output. If programmed as an output; each I/O bit can be programmed as an open-drain or complementary push-pull output. If desired, the four most significant I/O bits can be programmed to implement fan speed control. An internal clock generator and state machine eliminate the overhead generally associated with "bit-banging" fan speed control. Programming the device and reading/writing the I/O bits is accomplished using seven internal registers. All registers can be read by the host. Output bits are capable of directly driving high-current loads such as LEDs. A separate interrupt output can notify the host of state changes on the input bits without requiring the MIC74 to perform a transaction on the serial bus or be polled by the host. Three address selection inputs are provided, allowing up to eight devices to share the same bus and provide a total of 64 bits of I/O. The MIC74 is available in an ultra-small-footprint 16-pin QSOP. Low quiescent current, small footprint, and low package height make the MIC74 ideal for portable and desktop applications.

Prices starting from US$1.54


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Logo for element14 element14 US$2.23
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Logo for Newark Electronics Newark Electronics -
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Specifications

Temperature Range -40C to +85C

Alternative Descriptions

I/O EXPANDER & FAN CTRL, 8BIT, QSOP-16 | Farnell
2-Wire Serial I/O Expander & Fan Controller 16 Qsop 3.90Mm(.150In) Tube Rohs Compliant: Yes |Microchip MIC74YQS | Newark Electronics


Frequently Asked Questions

Where can I find additional details, specifications and documents for a MIC74YQS?

Additional datasheets, footprints and schematics for MIC74YQS are listed on our Part Details page. You can also find images and similar parts to MIC74YQS on this page.

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What category does MIC74YQS fall under?

The MIC74YQS is listed under MIC74.

Can I view similar or alternative parts?

You can view similar parts to MIC74YQS when available in the MIC74 range under the specifications section at the bottom of the details page.

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Is the MIC74YQS RoHS compliant?

This part has not been flagged as RoHS Compliant.

Which authorised distributors for MIC74YQS have stock available?

Authorised distributors including element14, Farnell and Newark Electronics have stock available or on a lead time for MIC74YQS.

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