SN74LS138D Datasheet PDF - ON Semiconductor

1-of-8 Decoder / Demultiplexer 

●The LSTTL/MSI SN74LS138 is a high speed 1-of-8 Decoder / Demultiplexer. This device is ideally suited for high speed bipolar memory chip select address decoding. The multiple input enables

●allow parallel expansion to a 1-of-24 decoder using just three LS138 devices or to a 1-of-32 decoder using four LS138s and one inverter. The LS138 is fabricated with the Schottky barrier diode process for high speed and is completely compatible with all ON Semiconductor TTL families.

●•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