Product Overview MC74AC138: 1-of-8 Decoder/Demultiplexer For complete documentation, see the data sheet Product Description The MC74AC138/74ACT138 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 MC74AC138/74ACT138 devices or a 1-of-32 decoder using four MC74AC138/ 74ACT138 devices and one inverter. Features • • • • • • Demultiplexing Capability Multiple Input Enable for Easy Expansion Active LOW Mutually Exclusive Outputs Outputs Source/Sink 24 mA ACT138 Has TTL Compatible Inputs These devices are available in Pb-free package(s). Specifications herein apply to both standard and Pb-free devices. Please see our website at www.onsemi.com for specific Pb-free orderable part numbers, or contact your local ON Semiconductor sales office or representative. Part Electrical Specifications Product MC74AC138DG Compliance Status Channels VCC Min (V) VCC Max (V) tpd Max (ns) IO Max (mA) Package Type Pb-free Active 1 2 6 9.5 24 SOIC-16 Active 1 2 6 9.5 24 SOIC-16 Active 1 2 6 9.5 24 TSSOP-16 Halide free MC74AC138DR2G Pb-free Halide free MC74AC138DTR2G Pb-free Halide free For more information please contact your local sales support at www.onsemi.com Created on: 6/30/2016