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CD74HC4094 Datasheet(PDF) 2 Page - Texas Instruments

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Part No. CD74HC4094
Description  High Speed CMOS Logic 8-Stage Shift and Store Bus Register, Three-State
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Maker  TI [Texas Instruments]
Homepage  http://www.ti.com
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CD74HC4094 Datasheet(HTML) 2 Page - Texas Instruments

 
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Description
The Harris CD74HC4094 and CD74HCT4094 are 8-stage
serial shift registers having a storage latch associated with
each stage for strobing data from the serial input to parallel
buffered three-state outputs. The parallel outputs may be
connected directly to common bus lines. Data is shifted on
positive clock transitions. The data in each shift register
stage is transferred to the storage register when the Strobe
input is high. Data in the storage register appears at the
outputs whenever the Output-Enable signal is high.
Two serial outputs are available for cascading a number of
these devices. Data is available at the QS1 serial output
terminal on positive clock edges to allow for high-speed
operation in cascaded system in which the clock rise time is
fast. The same serial information, available at the QS2
terminal on the next negative clock edge, provides a means
for cascading these devices when the clock rise time is slow.
Functional Diagram
Ordering Information
PART NUMBER
TEMP. RANGE (oC)
PACKAGE
PKG.
NO.
CD74HC4094E
-55 to 125
16 Ld PDIP
E16.3
CD74HCT4094E
-55 to 125
16 Ld PDIP
E16.3
CD74HC4094M
-55 to 125
16 Ld SOIC
M16.15
CD74HCT4094M
-55 to 125
16 Ld SOIC
M16.15
NOTES:
1. When ordering, use the entire part number. Add the suffix 96 to
obtain the variant in the tape and reel.
2. Wafer or die for this part number is available which meets all elec-
trical specifications. Please contact your local sales office or
Harris customer service for ordering information.
GND = 8
VCC = 16
Q2
6
7
Q3
Q1
5
Q0
4
14
13
12
11
Q4
Q5
Q6
Q7
THREE-
OUTPUT
8-BIT
STORAGE
REGISTER
8-STAGE
SHIFT
REGISTER
OE
15
1
3
2
10
9
QS2
QS1
DATA
CP
STROBE
STATE
TRUTH TABLE
INPUTS
PARALLEL OUTPUTS
SERIAL OUTPUTS
CP
OE
STR
D
Q0
Qn
QS1 (NOTE 4)
QS2
L
X
X
Z
Z
Q’6
NC
LX
X
Z
Z
NC
Q7
H
L
X
NC
NC
Q’6
NC
HH
L
L
Qn -1
Q’6
NC
CD74HC4094, CD74HCT4094


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