SL74HC299 datasheet(6/8 Pages) SLS

Il numero della parte	SL74HC299

Spiegazioni elettronici	8-Bit Bidirectional Universal Shift Register with Parallel I/O

PDF	8 Pages

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Produttore elettronici	SLS [System Logic Semiconductor]

Homepage	http://www.slsemicon.co.kr/e_index.htm

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SL74HC299

System Logic

Semiconductor

SLS

FUNCTION TABLE

Inputs

Response

Mode

Reset

Mode

Select

Output

Enables

Clock

Serial

Inputs

PA/

PB/

PC/

PD/

PE/

PF/

PG/

PH/

QA’ QH’

OE1

OE2

Reset

QA through QH=Z

Shift

Right

Shift Right: QA through QH=Z;

FA; FA

FB; etc

Shift Right: QA through QH=Z;

FA; FA

FB; etc

Shift Right: DA

FA =QA;

FB =QB; etc

Shift

Left

Shift Left: QA through QH=Z;

FH; FH

FG; etc

Shift Left: QA through QH=Z;

FH; FH

FG; etc

Shift Left: DH

FH =QH;

FG =QG; etc

Parallel

Load

Parallel Load:PN

Hold

Hold: QA through QH=Z; FN=FN

Hold: QN =QH

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.

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