54ACT157/VFA-R

Overview

The CD74ACT157 is a quad non-inverting 2-input multiplexer manufactured by Texas Instruments and distributed by Rochester Electronics. It operates within a supply voltage range of 2V to 6V and supports an operating temperature range from -55°C to 125°C. The device features four independent multiplexers, each selecting one of two data inputs based on a common select line. It utilizes CMOS technology for low power consumption and high noise immunity. The component is available in various packages including TSSOP-16 and SOIC-16.

Feature Summary

• Provides four independent 2-to-1 multiplexing channels
• Operates with wide supply voltage flexibility
• Supports extended industrial temperature ranges
• Features non-inverting output logic

Applications

• Data routing in digital systems
• Signal selection in measurement equipment
• Address decoding applications
• Logic level translation interfaces

Procurement Notes

Verify the specific suffix (e.g., VFA) against the manufacturer's official documentation to confirm package type and tape/reel specifications. Ensure the part number matches the exact functional requirements and environmental ratings specified in the datasheet before procurement.

Selection Notes

Select this component when multiple signal sources need to be routed to a single destination. Consider the ACT series speed and power characteristics relative to standard TTL or LVC alternatives. Verify package availability and lead times through authorized distributors like Rochester Electronics for obsolete or hard-to-find parts.

Part Context

Rochester Electronics specializes in sourcing and distributing obsolete, discontinued, and overstock electronic components. They act as a secondary market supplier for parts originally manufactured by companies like Texas Instruments. This allows customers to source legacy components that are no longer produced by the original OEM.

Replacement Considerations

Check for direct replacements such as CD74ACT157PWR or CD74ACT157PWRE4. Verify pin compatibility and electrical parameters before substituting.