CD74HC4094,
CD74HCT4094
Semiconductor
High Speed CMOS Logic
November 1997
8-Stage Shift and Store Bus Register, Three-State
Features
Description
• Buffered Inputs
The Harris CD74HC4094 and CD74HCT4094 are 8-stage
serial shift registers having a storage latch associated with
• Separate Serial Outputs Synchronous to Both
Positive and Negative Clock Edges For Cascading
[ /Title
(CD74H
C4094,
CD74H
CT4094
)
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.
• Fanout (Over Temperature Range)
- Standard Outputs. . . . . . . . . . . . . . . 10 LSTTL Loads
- Bus Driver Outputs . . . . . . . . . . . . . 15 LSTTL Loads
o
o
• Wide Operating Temperature Range . . . -55 C to 125 C
• Balanced Propagation Delay and Transition Times
/Sub-
ject
Two serial outputs are available for cascading a number of
these devices. Data is available at the QS serial output
1
• Significant Power Reduction Compared to LSTTL
Logic ICs
terminal on positive clock edges to allow for high-speed
operation in cascaded system in which the clock rise time is
(High
Speed
CMOS
Logic 8-
fast. The same serial information, available at the QS
terminal on the next negative clock edge, provides a means
for cascading these devices when the clock rise time is slow.
2
• HC Types
- 2V to 6V Operation
- High Noise Immunity: N = 30%, N = 30% of V
IL IH CC
at V
= 5V
CC
Ordering Information
• HCT Types
PKG.
- 4.5V to 5.5V Operation
o
PART NUMBER TEMP. RANGE ( C) PACKAGE
NO.
E16.3
E16.3
- Direct LSTTL Input Logic Compatibility,
CD74HC4094E
CD74HCT4094E
CD74HC4094M
CD74HCT4094M
NOTES:
-55 to 125
-55 to 125
-55 to 125
-55 to 125
16 Ld PDIP
16 Ld PDIP
V = 0.8V (Max), V = 2V (Min)
IL IH
- CMOS Input Compatibility, I ≤ 1µA at V , V
l
OL OH
16 Ld SOIC M16.15
16 Ld SOIC M16.15
Pinout
CD74HC4094, CD74HCT4094
(PDIP, SOIC)
1. When ordering, use the entire part number. Add the suffix 96 to
obtain the variant in the tape and reel.
TOP VIEW
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.
STROBE
DATA
CP
1
2
3
4
5
6
7
8
16 V
CC
15 OE
14 Q
13 Q
12 Q
11 Q
4
5
6
7
Q
Q
Q
Q
0
1
2
3
10 QS
2
9
QS
GND
1
CAUTION: These devices are sensitive to electrostatic discharge. Users should follow proper IC Handling Procedures.
File Number 1779.1
Copyright © Harris Corporation 1997
1