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| PartNumber | SN74AHCT138DBR | SN74AHCT138D | SN74AHCT138DB |
| Description | Encoders, Decoders, Multiplexers & Demultiplexers Line Decoder | Encoders, Decoders, Multiplexers & Demultiplexers Line Decoder | Decoder/Driver, AHCT/VHCT/VT Series, Inverted Output, CMOS, PDSO16 |
| Manufacturer | Texas Instruments | Texas Instruments | - |
| Product Category | Encoders, Decoders, Multiplexers & Demultiplexers | Encoders, Decoders, Multiplexers & Demultiplexers | - |
| RoHS | Y | Y | - |
| Product | Decoders / Demultiplexers | Decoders / Demultiplexers | - |
| Logic Family | AHCT | AHCT | - |
| Number of Bits | 8 bit | 8 bit | - |
| Number of Input Lines | 3 Input | 3 Input | - |
| Number of Output Lines | 8 Output | 8 Output | - |
| Propagation Delay Time | 12 ns | 12 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 | SSOP-16 | SOP-16 | - |
| Packaging | Reel | Tube | - |
| Function | Decoder/Demultiplexer | Decoder/Demultiplexer | - |
| Height | 1.95 mm | 1.58 mm | - |
| Length | 6.2 mm | 9.9 mm | - |
| Number of Circuits | Quad | Quad | - |
| Operating Temperature Range | - 40 C to + 85 C | - 40 C to + 85 C | - |
| Series | SN74AHCT138 | SN74AHCT138 | - |
| Technology | CMOS | CMOS | - |
| Width | 5.3 mm | 3.91 mm | - |
| Brand | Texas Instruments | Texas Instruments | - |
| Logic Type | Decoders/Demultiplexers | Decoders/Demultiplexers | - |
| Supply Current Max | 0.004 mA | 0.004 mA | - |
| High Level Output Current | - 8 mA | - 8 mA | - |
| Low Level Output Current | 8 mA | 8 mA | - |
| Maximum Clock Frequency | 70 MHz | 70 MHz | - |
| Operating Supply Voltage | 5 V | 5 V | - |
| Pd Power Dissipation | 300 mW | 300 mW | - |
| Product Type | Encoders, Decoders, Multiplexers & Demultiplexers | Encoders, Decoders, Multiplexers & Demultiplexers | - |
| Factory Pack Quantity | 2000 | 40 | - |
| Subcategory | Logic ICs | Logic ICs | - |
| Unit Weight | 0.004536 oz | 0.004998 oz | - |