74ACT253PC

Signal Switches, Multiplexers, Decoders Overview

The onsemi 74ACT253PC is a dual 4-input multiplexer with 3-STATE outputs housed in a 16-Lead Plastic Dual-In-Line Package (PDIP). It selects two bits of data from four sources using common select inputs. The device operates within a supply voltage range of 4.5V to 5.5V and supports an operating temperature range of -40°C to +85°C. Outputs source and sink up to 24mA, while propagation delays reach a maximum of 13.0ns at 5.0V.

Signal Switches, Multiplexers, Decoders Feature Summary

• Dual 4-input multiplexing capability with individual output enable controls
• Non-inverting 3-STATE outputs for direct bus interfacing
• TTL-compatible inputs for robust logic level handling

Signal Switches, Multiplexers, Decoders Applications

• Bus-oriented system data routing
• Signal switching applications requiring high impedance states
• Multiplexing two bits of data from multiple sources

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the specific package type and manufacturer history, as this component originated from Fairchild Semiconductor before acquisition by onsemi. Confirm RoHS compliance status through official documentation, as manufacturing processes may have evolved. Ensure the PDIP-16 footprint matches your PCB design requirements before finalizing procurement decisions.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when TTL-compatible inputs are required alongside standard CMOS performance levels. The 3-STATE outputs facilitate efficient bus sharing without external buffering. Consider the PDIP-16 package if through-hole mounting is necessary for mechanical stability or prototyping environments compared to surface-mount alternatives.

Signal Switches, Multiplexers, Decoders Part Context

This device belongs to the 74ACT family, designed to bridge the gap between older TTL logic standards and modern CMOS technologies. It provides enhanced speed and lower power consumption compared to legacy 74LS series parts while maintaining compatible input thresholds. The dual multiplexer architecture allows for compact designs in data selection circuits.

Signal Switches, Multiplexers, Decoders Replacement Considerations

Direct substitutes include the 74AC253PC for AC-series compatibility and the MC74ACT253DR2G for surface-mount implementations. Verify pinout consistency and electrical characteristics against the original datasheet specifications to ensure functional equivalence in existing circuit designs.