Hitachi HD74HC166
This device is an 8-bit shift register with an output from the last stage. When the Shift/Load input is low, the data is loaded asynchronously in parallel.| Part No. | HD74HC166 |
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| Datasheet | HD74HC166 Download |
| Manufacturer |  Hitachi |
| Description | Parallel-load 8-bit Shift Register |
| Buy | Stock & Price |
DESCRIPTION
Data may be loaded into the register either in parallel or in serial form. When the Shift/Load input is high, the data is loaded serially on the rising edge of either clock inhibit or Clock. Clear is asynchronous and active-low. The 2-input NOR clock may be used either by combining two independent clock sources or by designating one of the clock inputs to act as a clock inhibit.FEATURES
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● High Speed Operation: tpd (Clock to QH) = 14 ns typ (CL = 50 pF) 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 Parallel Clear L H H H H H Shift/Load X X L H H X Clock Inhibit X L L L L H Clock X L Serial X X X H L X A
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●●● h X X X Internal Outputs QA L QA0 a H L QA0 QB L QB0 b QAn QAn QB0 Output QH L QH0 h QGn QGn QH0 HD74HC166 Pin Arrangement Serial 1 Input A 2 B 3 Parallel Inputs C 4 D 5 Clock Inhibit 6 Clock 7 GND...
