74F157ASJ

Signal Switches, Multiplexers, Decoders Overview

The onsemi 74F157ASJ is a quad 2-input multiplexer in the 74F logic series, housed in a 16-lead Small Outline Package (SOP). It features four bits of data selection from two sources using common Select and Enable inputs. The device operates with a supply voltage range of +4.5V to +5.5V and an ambient temperature range of 0°C to +70°C. Propagation delays are specified at 10.0 ns maximum for Select-to-Output paths and 6.5 ns maximum for Enable-to-Output paths under standard conditions.

Signal Switches, Multiplexers, Decoders Feature Summary

• Quad 2-input multiplexing capability allowing selection of four bits from two data sources
• Common Select input controls data routing position while Enable input provides active LOW control
• Outputs present selected data in true non-inverted form
• Capable of generating any four of sixteen different functions of two variables

Signal Switches, Multiplexers, Decoders Applications

• Moving data between two groups of registers to common output busses
• Implementing highly irregular logic as a function generator
• Data routing in digital systems requiring parallel signal selection

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify component authenticity and datasheet revision status due to discontinued manufacturing status. Confirm package compatibility with existing PCB footprints, specifically the 16-lead SOP variant. Check for RoHS compliance documentation if required by current assembly standards. Ensure replacement parts maintain equivalent electrical characteristics and pinout configurations.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component for applications requiring high-speed quad multiplexing within the 74F logic family. Consider the specific propagation delay requirements and power supply constraints of the target system. Evaluate the physical dimensions of the 16-lead SOP package against available board space. Verify that the operating temperature range meets the environmental conditions of the intended deployment scenario.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to the 74F157A series of quad 2-input multiplexers manufactured by Fairchild Semiconductor, now part of onsemi. The 'ASJ' suffix denotes the 16-lead Small Outline Package (SOP) variant conforming to EIAJ TYPE II standards. It is distinct from the SOIC and PDIP packages offered in the same logical family.

Signal Switches, Multiplexers, Decoders Replacement Considerations

SN74F157ANSR Texas Instruments