| PartNumber | SN74HCT138D | SN74HCT138DG4 | SN74HCT138DE4 |
| Description | Encoders, Decoders, Multiplexers & Demultiplexers Line Decoder | Encoders, Decoders, Multiplexers & Demultiplexers 3Ln To 8Ln Decoder Demultiplexers | Encoders, Decoders, Multiplexers & Demultiplexers 3 to 8-Line Decdr/Demltplxer |
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments |
| Product Category | Encoders, Decoders, Multiplexers & Demultiplexers | Encoders, Decoders, Multiplexers & Demultiplexers | Encoders, Decoders, Multiplexers & Demultiplexers |
| RoHS | Y | Y | Y |
| Product | Decoders / Demultiplexers | Decoders / Demultiplexers | Decoders / Demultiplexers |
| Logic Family | HCT | HCT | HCT |
| Number of Input Lines | 3 Input | 3 Input | 3 Input |
| Number of Output Lines | 8 Output | 8 Output | 8 Output |
| Propagation Delay Time | 45 ns | 45 ns | 45 ns |
| Supply Voltage Min | 4.5 V | 4.5 V | 4.5 V |
| Supply Voltage Max | 5.5 V | 5.5 V | 5.5 V |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 85 C | + 85 C | + 85 C |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | SOP-16 | SOP-16 | SOP-16 |
| Packaging | Tube | Tube | Tube |
| Function | Decoder/Demultiplexer | Decoder/Demultiplexer | Decoder/Demultiplexer |
| Height | 1.58 mm | 1.58 mm | 1.58 mm |
| Length | 9.9 mm | 9.9 mm | 9.9 mm |
| Number of Circuits | Single | 1 Circuit | Single |
| Operating Temperature Range | - 40 C to + 85 C | - 40 C to + 85 C | - 40 C to + 85 C |
| Series | SN74HCT138 | SN74HCT138 | SN74HCT138 |
| Technology | CMOS | CMOS | CMOS |
| Width | 3.91 mm | 3.91 mm | 3.91 mm |
| Brand | Texas Instruments | Texas Instruments | Texas Instruments |
| Logic Type | Decoders/Demultiplexers | CMOS | Decoders/Demultiplexers |
| Supply Current Max | 0.08 mA | 0.08 mA | 0.08 mA |
| High Level Output Current | - 4 mA | - 4 mA | - 4 mA |
| Low Level Output Current | 4 mA | 4 mA | 4 mA |
| Maximum Clock Frequency | 25 MHz | 25 MHz | 25 MHz |
| Operating Supply Voltage | 5 V | 5 V | 5 V |
| Pd Power Dissipation | 2 W | - | - |
| Product Type | Encoders, Decoders, Multiplexers & Demultiplexers | Encoders, Decoders, Multiplexers & Demultiplexers | Encoders, Decoders, Multiplexers & Demultiplexers |
| Factory Pack Quantity | 40 | 40 | 40 |
| Subcategory | Logic ICs | Logic ICs | Logic ICs |
| Unit Weight | 0.004998 oz | 0.004998 oz | 0.004998 oz |