datasheets 74ls139 free download

File name 74ls139.pdf

SN54/74LS139 DUAL 1-OF-4 DECODER/ DEMULTIPLEXER The LSTTL/MSI SN54/74LS139 is a high speed Dual 1-of-4 Decoder /De- multiplexer. The device has two independent decoders, each accepting two inputs and providing four mutually exclusive active LOW Outputs. Each decoder has an active LOW Enable input which can be used as a data input DUAL 1-OF-4 DECODER / for a 4-output demultiplexer. Each half of the LS139 can be used as a function DEMULTIPLEXER generator providing all four minterms of two variables. The LS139 is fabricated with the Schottky barrier diode process for high speed and is LOW POWER SCHOTTKY completely compatible with all Motorola TTL families.