The SN74LS138N is a 3-line to 8-line Decoder/Demultiplexer, Schottky-clamped TTL MSI circuit is designed to be used in high-performance memory decoding or data-routing applications requiring very short propagation delay times. In high-performance memory systems, this decoder can be used to minimize the effects of system decoding. When employed with high-speed memories utilizing a fast enable circuit, the delay times of these decoders and the enable time of the memory are usually less than the typical access time of the memory. This means that the effective system delay introduced by the Schottky-clamped system decoder is negligible. The SN74LS138N decode one of eight lines dependent on the conditions at the three binary select inputs and the three enable inputs. Two active-low and one active-high enable inputs reduce the need for external gates or inverters when expanding.
Specifications:
No. of Pins: 16Pins
Product Range: SN54LS138; SN54S138; SN74LS138; SN74S138A
No. of Channels: 8Channels
Operating Temperature Max: 70°C
Supply Voltage Min: 4.75V
Supply Voltage Max: 5.25V
Logic Case Style: DIP
Logic IC Family: 74LS
Line Configuration: 0.130555555555556
Logic IC Base Number: 74138
Logic Type: 3-to-8 Line Decoder / Demultiplexer
Logic Family / Base Number: 74LS138
Package Includes:
1 x SN74LS138N-TEXAS INSTRUMENTS-SN74LS138N-Decoder / Demultiplexer, LS Family, 3:8, 4.75 V to 5.25 V, DIP-16
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