54LS139 Datasheet | National Semiconductor

( DataSheet : .. ) 54LS138 DM54LS138 DM74LS138 54LS139 DM54LS139 DM74LS139 Decoders Demultiplexers June 1989 54LS138 DM54LS138 DM74LS138 54LS139 DM54LS139 DM74LS139 Decoders Demultiplexers General Description These Schottky-clamped circuits are designed to be used in high-performance memory-decoding or data-routing applications requiring very short propagation delay times In high-performance memory systems these decoders can be used to minimize the effects of system decoding When used with high-speed memories the delay times of these decoders are usually less than the typical access time of the memory This means that the effective system delay introduced by the decoder...