CD54HC194_1 Datasheet, PDF(2/17 Page) Vectron International, Inc – High-Speed CMOS Logic 4-Bit Bidirectional Universal Shift Register

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CD54HC194_1 Datasheet, PDF (2/17 Pages) Vectron International, Inc – High-Speed CMOS Logic 4-Bit Bidirectional Universal Shift Register

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CD54HC194, CD74HC194, CD74HCT194

Functional Diagram

DSL

DSR

9 10 1 11

GND = 8

VCC = 16

TRUTH TABLE

OPERATING

MODE

Reset (Clear)

INPUTS

OUTPUT

DSR DSL

Hold (Do Nothing)

Shift Left

Shift Right

Parallel Load

H = High Voltage Level,

h = High Voltage Level One Set-up Time Prior To The Low to High Clock Transition,

L = Low Voltage Level,

l = Low Voltage Level One Set-up Time Prior to the Low to High Clock Transition,

dn (qn) = Lower Case Letters Indicate the State of the Referenced Input (or output) One Set-up Time Prior to the Low To High Clock

Transition,

X = Donât Care,

â = Transition from Low to High Level

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