| PartNumber | SN74S138AD | SN74S138ANE4 | SN74S138AN |
| Description | Encoders, Decoders, Multiplexers & Demultiplexers 3-line to 8-line Decoder/Demltplxr | Encoders, Decoders, Multiplexers & Demultiplexers 3-line to 8-line Decoder/Demltplxr | Encoders, Decoders, Multiplexers & Demultiplexers Line Decode |
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments |
| Product Category | Encoders, Decoders, Multiplexers & Demultiplexers | Encoders, Decoders, Multiplexers & Demultiplexers | Logic - Signal Switches, Multiplexers, Decoders |
| RoHS | Y | Y | - |
| Product | Decoders / Demultiplexers | Decoders / Demultiplexers | - |
| Logic Family | S | S | - |
| Number of Input Lines | 3 Input | 3 Input | - |
| Number of Output Lines | 8 Output | 8 Output | - |
| Propagation Delay Time | 41 ns | 41 ns | - |
| Supply Voltage Min | 4.75 V | 4.75 V | - |
| Supply Voltage Max | 5.25 V | 5.25 V | - |
| Minimum Operating Temperature | 0 C | 0 C | - |
| Maximum Operating Temperature | + 70 C | + 70 C | - |
| Mounting Style | SMD/SMT | Through Hole | - |
| Package / Case | SOP-16 | PDIP-16 | - |
| Packaging | Tube | Tube | Tube Alternate Packaging |
| Function | Decoder and Demux | Decoder/Demultiplexer | - |
| Height | 1.58 mm | 4.57 mm | - |
| Length | 9.9 mm | 19.3 mm | - |
| Number of Circuits | Triple | Triple | - |
| Operating Temperature Range | 0 C to + 70 C | 0 C to + 70 C | - |
| Series | SN74S138A | SN74S138A | 74S |
| Technology | Bipolar | Bipolar | - |
| Width | 3.91 mm | 6.35 mm | - |
| Brand | Texas Instruments | Texas Instruments | - |
| Logic Type | Decoders/Demultiplexers | Decoders/Demultiplexers | - |
| Supply Current Max | 49 mA | 49 mA | - |
| High Level Output Current | - 1 mA | - 1 mA | - |
| Low Level Output Current | 20 mA | 20 mA | - |
| Maximum Clock Frequency | 50 MHz | 50 MHz | - |
| Operating Supply Voltage | 5 V | 5 V | - |
| Product Type | Encoders, Decoders, Multiplexers & Demultiplexers | Encoders, Decoders, Multiplexers & Demultiplexers | - |
| Factory Pack Quantity | 40 | 25 | - |
| Subcategory | Logic ICs | Logic ICs | - |
| Unit Weight | 0.004998 oz | 0.033570 oz | - |
| Type | - | - | Decoder/Demultiplexer |
| Package Case | - | - | 16-DIP (0.300", 7.62mm) |
| Operating Temperature | - | - | 0°C ~ 70°C |
| Mounting Type | - | - | Through Hole |
| Voltage Supply | - | - | 4.75 V ~ 5.25 V |
| Supplier Device Package | - | - | 16-PDIP |
| Voltage Supply Source | - | - | Single Supply |
| Circuit | - | - | 1 x 3:8 |
| Current Output High Low | - | - | 400μA, 8mA |
| Independent Circuits | - | - | 1 |