HD74HC131 Datasheet | Hitachi Semiconductor

Description The HD74HC131 is 3-to-8 linedecoder. It has Address select inputs (A,B,C) and D type register. Address select data store to D type registers, during the positive going transition of the clock pulse. Output control (G 1, G2) are independent of select input and CLK input, and when G1 is low or G2 = High, all outputs is high. Features - - - - - High Speed Operation: tpd (CLK to Y) = 20 ns typ (CL = 50 p F) High Output Current: Fanout of 10 LSTTL Loads Wide Operating Voltage: VCC = 2 V to 6 V Low Input Current: 1 µA max Low Quiescent Supply Current: ICC (static) = 4 µA max (Ta = 25°C) Function Table Inputs Enable CLK G1 X X X L H H H H H H H H L H G2 H X L L L L L L L L L Select C X X L L L L H H H H X B X X L L H H L L H H X A X X L H L H L H L H X Outputs Y0 H H L H H H H H H H Y1 H H H L H H H H H H Y2 H H H H L H H H H H Y3 H H H H H L H H H H Y4 H H H H H H L H H H Y5 H H H H H H H L H H Y6 H H H H H H H H L H Y7 H H H H H H H H H L Outputs corresponding to stored address, L; all others H Pin Arrangement A B C CLK G2 G1 Y7 GND 1 2 3 4 5 6 7 8 (Top view) 16 15 14 13 12 11 10 9 VCC Y0 Y1 Y2 Y3 Y4 Y5 Y6 Logic Diagram Y0 Y1 Y2 Y3 Y4 Y5 Y6 G2 G1 Y7 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 or GND Vin = VCC or GND, Iout = 0 µA V I OH = - 4 m A I OH = - 5.2 m A Vin = VIH or VIL I OL = 20 µA V Vin = VIH or VIL I OH = - 20 µA V Unit V Test Conditions VCC (V) Min Typ Max Min 2.0 4.5 6.0...