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| PartNumber | SN74HCT138NSR | SN74HCT138NSRG4 | SN74HCT138NS |
| Description | Encoders, Decoders, Multiplexers & Demultiplexers 3 to 8-Line Decdr/Demltplxer | Encoders, Decoders, Multiplexers & Demultiplexers 3Ln To 8Ln Decoder Demultiplexers | Decoder/Driver, HCT Series, Inverted Output, CMOS, PDSO16 |
| 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 | HCT | HCT | - |
| Number of Input Lines | 3 Input | 3 Input | - |
| Number of Output Lines | 8 Output | 8 Output | - |
| Propagation Delay Time | 45 ns | 45 ns | - |
| Supply Voltage Min | 4.5 V | 4.5 V | - |
| Supply Voltage Max | 5.5 V | 5.5 V | - |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 85 C | + 85 C | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Package / Case | SO-16 | SO-16 | - |
| Packaging | Reel | Reel | Digi-ReelR Alternate Packaging |
| Function | Decoder/Demultiplexer | Decoder/Demultiplexer | - |
| Height | 1.95 mm | 1.95 mm | - |
| Length | 10.3 mm | 10.3 mm | - |
| Number of Circuits | Single | 1 Circuit | - |
| Operating Temperature Range | - 40 C to + 85 C | - 40 C to + 85 C | - |
| Series | SN74HCT138 | SN74HCT138 | 74HCT |
| Technology | CMOS | CMOS | - |
| Width | 5.3 mm | 5.3 mm | - |
| Brand | Texas Instruments | Texas Instruments | - |
| Logic Type | Decoders/Demultiplexers | Decoders, Encoders, Multiplexers & Demultiplers | - |
| Supply Current Max | 0.08 mA | 0.08 mA | - |
| High Level Output Current | - 4 mA | - 4 mA | - |
| Low Level Output Current | 4 mA | 4 mA | - |
| Maximum Clock Frequency | 25 MHz | 25 MHz | - |
| Operating Supply Voltage | 5 V | 5 V | - |
| Product Type | Encoders, Decoders, Multiplexers & Demultiplexers | Encoders, Decoders, Multiplexers & Demultiplexers | - |
| Factory Pack Quantity | 2000 | 2000 | - |
| Subcategory | Logic ICs | Logic ICs | - |
| Unit Weight | 0.007079 oz | 0.007079 oz | - |
| Type | - | - | Decoder/Demultiplexer |
| Package Case | - | - | 16-SOIC (0.209", 5.30mm Width) |
| Operating Temperature | - | - | -40°C ~ 85°C |
| Mounting Type | - | - | Surface Mount |
| Voltage Supply | - | - | 4.5 V ~ 5.5 V |
| Supplier Device Package | - | - | 16-SO |
| Voltage Supply Source | - | - | Single Supply |
| Circuit | - | - | 1 x 3:8 |
| Current Output High Low | - | - | 4mA, 4mA |
| Independent Circuits | - | - | 1 |