2

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

terminal on positive clock edges to allow for high-speed

operation in cascaded system in which the clock rise time is

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

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

6

7

5

4

14

13

12

11

THREE-

OUTPUT

8-BIT

STORAGE

REGISTER

8-STAGE

SHIFT

REGISTER

OE

15

1

3

2

10

9

DATA

CP

STROBE

STATE

TRUTH TABLE

INPUTS

PARALLEL OUTPUTS

SERIAL OUTPUTS

CP

OE

STR

D

↑

L

X

X

Z

Z

Q’6

NC

↓

LX

X

Z

Z

NC

↑

H

L

X

NC

NC

Q’6

NC

↑

HH

L

L

Q’6

NC

CD74HC4094, CD74HCT4094