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| PartNumber | SN74AHC138D | SN74AHC138DBR | SN74AHC138DB |
| Description | Encoders, Decoders, Multiplexers & Demultiplexers Line Decoder | Encoders, Decoders, Multiplexers & Demultiplexers Line Decoder | |
| 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 | AHC | AHC | - |
| 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 | 13 ns | 13 ns | - |
| Supply Voltage Min | 2 V | 2 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 | SOP-16 | SSOP-16 | - |
| Packaging | Tube | Reel | Digi-ReelR Alternate Packaging |
| Function | Decoder and Demux | Decoder/Demultiplexer | - |
| Height | 1.58 mm | 1.95 mm | - |
| Length | 9.9 mm | 6.2 mm | - |
| Number of Circuits | Dual | Dual | - |
| Operating Temperature Range | - 40 C to + 85 C | - 40 C to + 85 C | - |
| Series | SN74AHC138 | SN74AHC138 | 74AHC |
| Technology | CMOS | CMOS | - |
| Width | 3.91 mm | 5.3 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 | 110 MHz | 110 MHz | - |
| Operating Supply Voltage | 2 V to 5.5 V | 2 V to 5.5 V | - |
| Pd Power Dissipation | 600 mW | 600 mW | - |
| Product Type | Encoders, Decoders, Multiplexers & Demultiplexers | Encoders, Decoders, Multiplexers & Demultiplexers | - |
| Factory Pack Quantity | 40 | 2000 | - |
| Subcategory | Logic ICs | Logic ICs | - |
| Unit Weight | 0.004998 oz | 0.004536 oz | - |
| Type | - | - | Decoder/Demultiplexer |
| Package Case | - | - | 16-SSOP (0.209", 5.30mm Width) |
| Operating Temperature | - | - | -40°C ~ 85°C |
| Mounting Type | - | - | Surface Mount |
| Voltage Supply | - | - | 2 V ~ 5.5 V |
| Supplier Device Package | - | - | 16-SSOP |
| Voltage Supply Source | - | - | Single Supply |
| Circuit | - | - | 1 x 3:8 |
| Current Output High Low | - | - | 8mA, 8mA |
| Independent Circuits | - | - | 1 |