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HD74AC165 Datasheet(PDF) 1 Page - Hitachi Semiconductor

Part No. HD74AC165
Description  Parallel-Load 8-bit Shift Register
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Maker  HITACHI [Hitachi Semiconductor]
Homepage  http://www.renesas.com/eng
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HD74AC165 Datasheet(HTML) 1 Page - Hitachi Semiconductor

 
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HD74AC165/HD74ACT165
Parallel-Load 8-bit Shift Register
Description
This 8-bit serial shift register shifts data from Q
A to QH when clocked, Parallel inputs to each stage are
enabled by a low level at the Shift/Load Input. Also included is a gated clock input and a complementary
output from the eighth bit.
Clocking is accomplished through a 2-input NOR gate permitting one input to be used as a clock inhibit
function. Holding either of the clock inputs high inhibits clocking, and holding either clock input low with
the Shift/Load input high enables the other clock input. Data transfer occurs on the positive going edge of
the clock. Parallel loading is inhibited as long as the Shift/Load input is high. When taken low, data at the
parallel inputs is loaded directly into the register independent of the state of the clock.
Features
• Outputs Source/Sink 24 mA
• HD74ACT165 has TTL-Compatible Inputs


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