HD74AC138

HD74AC138/HD74ACT138 1-of-8 Decoder/Demultiplexer REJ03D0248–0200Z (Previous ADE-205-368 (Z)) Rev.2.00 Jul.16.2004 Description The HD74AC138/HD74ACT138 is a high-speed 1-of-8 decoder/demultiplexer. This device is ideally suited for highspeed bipolar memory chip select address decoding. The multiple input enables allow parallel expansion to a 1-of-24 decoder using just three HD74AC138/HD74ACT138 devices or a 1-of-32 decoder using four HD74AC138/HD74ACT138 devices and one inverter. Features Demultiplexing Capability Multiple Input Enable for Easy Expansion Active LOW Mutually Exclusive Outputs Outputs Source/Sink 24 mA HD74ACT138 has TTL-Compatible Inputs Ordering Information: Ex. HD74AC138 Part Name Package Type Package Code Package Abbreviation Taping Abbreviation (Quantity) HD74AC138AP DIP-16 pin DP-16E, -16FV P — HD74AC138AFPEL SOP-16 pin (JEITA) FP-16DAV FP EL (2,000 pcs/reel) HD74AC138ARPEL SOP-16 pin (JEDEC) FP-16DNV RP EL (2,500 pcs/reel) HD74AC138TELL TSSOP-16 pin TTP-16DAV T ELL(2,000 pcs/reel) Notes: 1. Please consult the sales office for the above package availability. 2. The packages with lead-free pins are distinguished from the conventional products by adding V at the end of the package code. Pin Arrangement A0 1 A1 2 A2 3 E1 4 E2 5 E3 6 O7 7 GND 8 (Top view) 16 VCC 15 O0 14 O1 13 O2 12 O3 11 O4 10 O5 9 O6 Rev.2.00, Jul.16.2004, page 1 of 9 HD74AC138/HD74ACT138 Logic Symbol A0 A1 A2 E1 E2 E3 O0 O1 O2 O3 O4 O5 O6 O7 Pin Na...