Part # 74LS138 datasheet

Part Manufacturer: Motorola


Part Description: 74LS138

Part Details:

SN54/74LS138 1-OF-8 DECODER/DEMULTIPLEXER The LSTTL / MSI SN54 / 74LS138 is a high speed 1-of-8 Decoder / Demultiplexer. This device is ideally suited for high speed bipolar memorychip select address decoding. The multiple input enables allow parallel ex-pansion to a 1-of-24 decoder using just three LS138 devices or to a 1-of-32 1-OF-8 DECODER / decoder using four LS138s and one inverter. The LS138 is fabricated with the DEMULTIPLEXER Schottky barrier diode process for high speed and is completely compatiblewith all Motorola TTL families. LOW POWER SCHOTTKY · Demultiplexing Capability · Multiple Input Enable for Easy Expansion · Typical Power Dissipation of 32 mW · Active Low Mutually Exclusive Outputs · Input Clamp Diodes Limit High Speed Termination Effects J SUFFIX CERAMIC CONNECTION DIAGRAM DIP (TOP VIEW) CASE 620-09 16 VCC O0 O1 O2 O3 O O 4 5 O6 1 16 15 14 13 12 11 10 9 NOTE:The Flatpak version N SUFFIX has the same pinouts PLASTIC (Connection Diagram) as CASE 648-08 the Dual In-Line Package. 16 1 1 2 3 4 5 6 7 8

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74LS138.pdf Datasheet