74HCT138PW,112

Signal Switches, Multiplexers, Decoders Overview

The Nexperia 74HCT138PW,112 is a 3-to-8 line decoder and demultiplexer utilizing HCT logic technology. It decodes three binary weighted address inputs (A0, A1, A2) into eight mutually exclusive active LOW outputs (Y0 to Y7). The device incorporates three enable inputs: two active LOW (E1, E2) and one active HIGH (E3). It operates within a supply voltage range of 4.5 V to 5.5 V and supports an ambient temperature range from -40 °C to +125 °C. The component is housed in a TSSOP16 plastic thin shrink small outline package (SOT403-1) with 16 leads.

Signal Switches, Multiplexers, Decoders Feature Summary

• TTL-compatible input levels for seamless integration with standard logic families
• Demultiplexing capability by utilizing enable inputs as data strobes
• Multiple enable inputs facilitate easy parallel expansion to larger decoding configurations

Signal Switches, Multiplexers, Decoders Applications

• Memory chip select decoding
• Digital signal routing via demultiplexing
• Address decoding in industrial control systems

Signal Switches, Multiplexers, Decoders Procurement Notes

Verify the specific ordering suffix '112' against current Nexperia documentation to confirm packaging details and availability status. Ensure that the TSSOP16 package variant matches the design footprint requirements. Confirm compliance with relevant JEDEC standards and RoHS directives prior to final procurement decisions.

Signal Switches, Multiplexers, Decoders Selection Notes

Select this component when TTL-level interface compatibility is required alongside CMOS low power dissipation characteristics. The wide operating temperature range makes it suitable for demanding environments. Verify that the active LOW output polarity aligns with the downstream circuit design requirements.

Signal Switches, Multiplexers, Decoders Part Context

This part belongs to the 74HCT138 family of high-speed Si-gate CMOS devices. It is pin compatible with Low Power Schottky TTL (LSTTL) standards. The product complies with JEDEC standard no. 7A and features robust ESD protection capabilities exceeding specified industry thresholds for both Human Body Model and Charged Device Model events.

Signal Switches, Multiplexers, Decoders Replacement Considerations

Direct pin-to-pin replacements include the 74HC138PW,112 variant, which utilizes CMOS input levels instead of TTL levels. Other family members such as the 74HCT138D offer identical functionality but utilize a different SOIC-16 package format.