SN74HCT138DR
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| Part Number | SN74HCT138DR |
|---|---|
| Manufacturer |
 Texas Instruments
|
| Description | The SN74HCT138DR is a high-speed CMOS 3-to-8 line decoder/demultiplexer with TTL-compatible inputs, designed for memory decoding and data routing applications. It operates over a supply voltage range of 4.5V to 5.5V and features low power consumption with typical supply current below 80 µA. The device includes three enable inputs for flexible cascading and control, and provides active-low outputs capable of driving up to ±4 mA. It offers fast propagation delay typically around 17 ns at 5V, ensuring high-speed performance in digital systems. The input current is low (≤1 µA), and it supports operation across a temperature range of -40°C to +85°C. Packaged in SOIC-16, it is ideal for address decoding, data selection, and digital signal distribution in embedded and logic circuit applications. |
| Product Group | Logic IC |
| MOQ | 2500 pcs |
| SPQ | 2500 pcs |
| Figure/Case | 16-SOIC |
| Package | T&R Pack |
 PDF Datasheet | |
| Ship From | Hong Kong |
| Shipment Way | DHL / Fedex / TNT / UPS / Others |
| Delivery Term | Ex-Works |
| Send RFQ | sales@signalhk.com |
| Attribute | Description |
|---|---|
| Manufacturer | Texas Instruments |
| Part Number | SN74HCT138DR |
| Function | 3-Line to 8-Line Decoder/Demultiplexer |
| Logic Type | Decoder/Demultiplexer |
| Number of Channels | 1 |
| Number of Inputs | 3 |
| Number of Outputs | 8 |
| Output Type | Standard CMOS |
| Voltage - Supply (VCC) | 4.5V to 5.5V |
| Current - Supply (Max) | 80 µA |
| High-Level Output Current (IOH) | -4 mA |
| Low-Level Output Current (IOL) | 4 mA |
| Propagation Delay (Max) | 22 ns at 5V |
| Operating Temperature | -40°C to 85°C |
| Mounting Type | Surface Mount |
| Package / Case | 16-SOIC (0.154", 3.90mm Width) |
| Supplier Device Package | 16-SOIC |
| Features | - Active-Low Mutually Exclusive Outputs - Designed Specifically for High-Speed Memory Decoders and Data-Transmission Systems - Incorporate Three Enable Inputs to Simplify Cascading and/or Data Reception - Schmitt-Trigger Action at All Inputs Makes the Circuit Tolerant for Slower Input Rise and Fall Time |
| Base Product Number | 74HCT138 |
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SN74HCT138DR
SN74HCT138DR