HD74HC356

HD74HC356 8-to-1-line Data Selectors/Multiplexer/Register (with 3-state outputs) Description This data selectors/multiplexers contain full on-chip binary decoding to select one of eight data sources. The data select address is stored in transparent latches that are enabled by a low level address on pin 11, Select Control. Data on the 8 input lines is stored in a parallel input/output register which in the HD74HC356 is composed of 8 edge-triggered flip-flops, clocked by a low to high transition on pin 9, clock. Both true (Y) and complementary (W) 3-state outputs are available. Features High Speed Operation: tpd (Clock to W, Y) = 27 ns typ (CL = 50 pF) High Output Current: Fanout of 15 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) HD74HC356 Function Table Inputs Select S1 X X X L L L L L L L L H H H H H H H H S2 X X X L L L L H H H H L L L L H H H H S0 X X X L L H H L L H H L L H H L L H H H or L H or L H or L H or L H or L H or L H or L H or L Clock X X X Output Enable G1 H X X L L L L L L L L L L L L L L L L G2 X H X L L L L L L L L L L L L L L L L G3 X X L H H H H H H H H H H H H H H H H Outputs W Z Z Z D0 D0n D1 D1n D2 D2n D3 D3n D4 D4n D5 D5n D6 D6n D7 D7n Y Z Z Z D0 D0n D1 D1n D2 D2n D3 D3n D4 D4n D5 D5n D6 D6n D7 D7n 2 HD74HC356 Pin Arrangement D7 1 D6 2 D5 3 Data inputs D4 4 D3 5 D2 6 D1 7 D0 8 Clock 9 GND 10 20 VCC 19 Y Outputs 18 W 17 G3 16 G2 15 G1 14 S...