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SN74LVC166A Datasheet(PDF) 16 Page - Texas Instruments

Part # SN74LVC166A
Description  SN74LVC166A 8-Bit Parallel-Load Shift Registers with Clear
PDF  23 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

SN74LVC166A Datasheet(HTML) 16 Page - Texas Instruments

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7.4 Device Functional Modes
Table 7-1 lists the functional modes of the SN74LVC166A.
Table 7-1. Operating Mode Table
INPUTS(1)
FUNCTION
SH/LD
CLK
CLK INH
L
X
X
Parallel load(2)
H
H
X
No change
H
X
H
No change
H
L
↑
Shift(3)
H
↑
L
Shift(3)
(1)
H = High voltage level, L = Low voltage level, X = Don't care, ↑ =
Low to high transition
(2)
Parallel load : Values at inputs A through H are loaded to
respective internal registers synchronously with the clock.
(3)
Shift : Content of each internal register shifts towards serial
output QH synchronously with the clock. Data at SER is shifted
into the first register.
Table 7-2. Output Function Table
INTERNAL REGISTERS(1) (2)
OUTPUTS(3)
A — G
H
Q
X
L
L
X
H
H
(1)
Internal registers refer to the shift registers inside the device.
These values are set by loading data from the parallel or serial
inputs.
(2)
H = High voltage level, L = Low voltage level, X = Don't care
(3)
H = Driving high, L = Driving low
SN74LVC166A
SCLSA15 – MAY 2024
www.ti.com
16
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Copyright © 2024 Texas Instruments Incorporated
Product Folder Links: SN74LVC166A



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