HD74HC154 Datasheet | Hitachi Semiconductor

4-to-16-line Decoder/Demultiplexer Description The HD74HC154 has 4 binary select inputs (A, B, C and D). IF the device is enabled these inputs determine which one of the 16 normally high outputs will go low. Two active low enables (G 1 and G 2) are provided to ease cascading of decoders with little or no external logic. Features - - - - - High Speed Operation: tpd (A, B, C, D to Y) = 19 ns typ (CL = 50 p F) High Output Current: Fanout of 10 LSTTL Loads Wide Operating Voltage: VCC = 2 to 6 V Low Input Current: 1 µA max Low Quiescent Supply Current: ICC (static) = 4 µA max (Ta = 25°C) Function Table Inputs G1 L L L L L L L L L L L L L L L L L H H X : G2 L L L L L L L L L L L L L L L L H L H D L L L L L L L L H H H H H H H H X X X C L L L L H H H H L L L L H H H H X X X B L L H H L L H H L L H H L L H H X X X A L H L H L H L H L H L H L H L H X X X Outputs 0 L H H H H H H H H H H H H H H H H H H 1 H L H H H H H H H H H H H H H H H H H 2 H H L H H H H H H H H H H H H H H H H 3 H H H L H H H H H H H H H H H H H H H 4 H H H H L H H H H H H H H H H H H H H 5 H H H H H L H H H H H H H H H H H H H 6 H H H H H H L H H H H H H H H H H H H 7 H H H H H H H L H H H H H H H H H H H 8 H H H H H H H H L H H H H H H H H H H 9 H H H H H H H H H L H H H H H H H H H 10 11 H H H H H H H H H H L H H H H H H H H H H H H H H H H H H H L H H H H H H H 12 H H H H H H H H H H H H L H H H H H H 13 H H H H H H H H H H H H H L H H H H H 14 H H H H H H H H H H H H H H L H H H H 15 H H H H H H H H H H H H H H H L H H H Irrelevant Pin Arrangement Y0 1 Y1 2 Y2 3 Y3 4 Y4 5 Outputs Y5 6 Y6 7 Y7 8 Y8 9 Y9 10 Y10 11 GND 12 (Top view) 1 2 3 4 5 6 7 8 9 0 A B C D G2 G1 15 14 13 24 VCC 23 A 22 B 21 C 20 D 19 G2 18 G1 17 Y15 16 Y14 15 Y13 14 Y12 13 Y11 Outputs Inputs 10 11 12 DC Characteristics Ta = 25°C Item Input voltage Symbol VIH Ta = - 40 to +85°C Max - - - 0.5 1.35 1.8 - - - - - 0.1 0.1 0.1 0.33 0.33 ±1.0 40 µA µA I OL = 4 m A I OL = 5.2 m A Vin = VCC...