74ACT157PC

Signal Switches, Multiplexers, Decoders Overview

The onsemi 74ACT157PC is a quad 2-input multiplexer housed in a 16-lead Plastic Dual-In-Line Package (PDIP). It operates within a supply voltage range of 4.5V to 5.5V and supports an operating temperature from -40°C to +85°C. The device features TTL-compatible inputs, outputs sourcing/sinking 24 mA, and propagation delays up to 10.5 ns at 5.0V with 50 pF load.

Signal Switches, Multiplexers, Decoders Feature Summary

• Quad 2-input multiplexing capability with common Select and Enable controls
• TTL-compatible input thresholds for direct interfacing
• Outputs provide true non-inverted data form
• Reduced quiescent current and output impedance

Signal Switches, Multiplexers, Decoders Applications

• Moving data between two groups of registers to common buses
• Function generation using two variables
• Implementing gating functions

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the specific package variant against the datasheet ordering codes. Confirm that the procurement matches the PDIP N16E designation. Ensure the component meets the specified electrical limits for the ACT series before integration into the design.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this part when TTL-compatible logic levels are required alongside high-speed multiplexing. The 24 mA output drive capability supports moderate loading conditions. Verify that the 4.5V to 5.5V supply range aligns with the system power architecture.

Signal Switches, Multiplexers, Decoders Part Context

This component belongs to the AC/ACT157 family of quad 2-input multiplexers. It implements a 4-pole, 2-position switch controlled by a single Select input. The ACT variant specifically ensures compatibility with TTL logic families while maintaining AC performance characteristics.

Signal Switches, Multiplexers, Decoders Replacement Considerations

The 74AC157PC serves as the non-TTL compatible alternative within the same family. Other packages such as SOIC or TSSOP offer equivalent functionality with different physical footprints.