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KK74AC299 Datasheet(PDF) 6 Page - KODENSHI KOREA CORP.

Part No. KK74AC299
Description  8-Bit Bidirectional Universal Shift Register with Parallel I/O High-Speed Silicon-Gate CMOS
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Maker  KODENSHI [KODENSHI KOREA CORP.]
Homepage  http://www.kodenshi.co.kr
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KK74AC299 Datasheet(HTML) 6 Page - KODENSHI KOREA CORP.

   
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KK74AC299
FUNCTION TABLE
Inputs
Response
Mode
Reset
Mode
Select
Output
Enables
Clock
Serial
Inputs
PA/
QA
PB/
QB
PC/
QC
PD/
QD
PE/
QE
PF/
QF
PG/
QG
PH/
QH
QA’ QH
S2
S1
OE1
OE2
DA DH
Reset
L
X
L
L
L
X
X
X
L
L
L
L
L
L
L
L
L
L
L
L
X
L
L
X
X
X
L
L
L
L
L
L
L
L
L
L
L
H
H
X
X
X
X
X
QA through QH=Z
L
L
Shift
Right
H
L
H
H
X
D
X
Shift Right: QA through QH=Z;
DA
FA; FA
FB; etc
D
QG
H
L
H
X
H
D
X
Shift Right: QA through QH=Z;
DA
FA; FA
FB; etc
D
QG
H
L
H
L
L
D
X
Shift Right: DA
FA =QA;
FA
FB =QB; etc
D
QG
Shift
Left
H
H
L
H
X
X
D
Shift Left: QA through QH=Z;
DH
FH; FH
FG; etc
QB
D
H
H
L
X
H
X
D
Shift Left: QA through QH=Z;
DH
FH; FH
FG; etc
QB
D
H
H
L
L
L
X
D
Shift Left: DH
FH =QH;
FH
FG =QG; etc
QB
D
Parallel
Load
H
H
H
X
X
X
X
Parallel Load:PN
FN
PA
PH
Hold
H
L
L
H
X
X
X
X
Hold: QA through QH=Z; FN=FN
PA
PH
H
L
L
X
H
X
X
X
Hold: QA through QH=Z; FN=FN
PA
PH
H
L
L
L
L
X
X
X
Hold: QN =QH
PA
PH
Z = high impedance
D = data on serial input
F = flip-flop (see Logic Diagram)
When one or both output controls are high the eight input/output terminals are disabled to the high-
impedance state; however, sequential operation or clearing of the register is not affected.
6


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