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BUY 74AC139 https://www.utsource.net/itm/p/1767480.html
Octal D-type transparent latches 20-PDIP 0 to 70
Description: The 74AC139 is a high-speed 1-of-8 Decoder/Demultiplexer with 3-state outputs. It is fabricated with advanced CMOS technology to achieve high speed operation while maintaining CMOS low power dissipation. Features: High speed: tPD = 8.5ns (typ) at VCC = 5V Low power dissipation: ICC = 4μA (max) at TA = 25°C High noise immunity: VNIH = VNIL = 28% VCC (min) Outputs can be wired ORed Outputs source/sink 24mA Inputs accept voltages to 5.5V LSTTL input and output compatibility Outputs in 3-state Available in 16-pin SOIC package Applications: Address decoding Data demultiplexing Bus buffering (For reference only)