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HD74LV164A8 Datasheet

  • HD74LV164A8

  • 8-bit Parallel-out Serial-in Shift Register

  • 69.71KB

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HD74LV164A
8-bit Parallel-out Serial-in Shift Register
ADE-205-266 (Z)
1st Edition
March 1999
Description
The HD74LV164A is 8-bit shift register has gated serial inputs and clear. Each register bit is a D-type
master/slave flip-flop. Inputs A & B permit complete control over the incoming data. A low at either or
both inputs inhibits entry of new data and resets the first flip-flop to the low level at the next clock pulse. A
high level on one input enables the other input which will then determine the state of the first flip-flop.
Data at the serial inputs may be changed while the clock is high or low, but only information meeting the
setup and hold time but only information meeting the setup and hold time requirements will be entered.
Data is serially shifted in and out of the 8-bit register during the positive going transition of the clock pulse.
Clear is independent of the clock and accomplished by low level at the clear input.
Low-voltage and high-speed operation is suitable for the battery-powered products (e.g., notebook
computers), and the low-power consumption extends the battery life.
Features
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V
CC
= 2.0 V to 5.5 V operation
All inputs V
IH
(Max.) = 5.5 V (@V
CC
= 0 V to 5.5 V)
All outputs V
O
(Max.) = 5.5 V (@V
CC
= 0 V)
Typical V
OL
ground bounce < 0.8 V (@V
CC
= 3.3 V, Ta = 25擄C)
Typical V
OH
undershoot > 2.3 V (@V
CC
= 3.3 V, Ta = 25擄C)
Output current
鹵6
mA (@V
CC
= 3.0 V to 3.6 V),
鹵12
mA (@V
CC
= 4.5 V to 5.5 V)

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