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54ACT11533 Datasheet(PDF) 1 Page - Texas Instruments

Part # 54ACT11533
Description  OCTAL D-TYPE TRANSPARENT LATCHES WITH 3-STATE OUTPUTS
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

54ACT11533 Datasheet(HTML) 1 Page - Texas Instruments

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54ACT11533, 74ACT11533
OCTAL DTYPE TRANSPARENT LATCHES
WITH 3STATE OUTPUTS
SCAS017A − D2957, JULY 1987 − REVISED APRIL 1993
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Copyright
1993, Texas Instruments Incorporated
2−1
Eight Latches in a Single Package
3-State Bus-Driving Inverting Outputs
Full Parallel Access for Loading
Buffered Control Inputs
Inputs Are TTL-Voltage Compatible
Flow-Through Architecture Optimizes
PCB Layout
Center-Pin V
CC and GND Configurations
Minimize High-Speed Switching Noise
EPICt (Enhanced-Performance Implanted
CMOS) 1-
mm Process
500-mA Typical Latch-Up Immunity at 125°C
Package Options Include Plastic Small-
Outline Packages, Ceramic Chip Carriers,
and Standard Plastic and Ceramic 300-mil
DIPs
description
These eight latches feature 3-state outputs
designed specifically for driving highly capacitive
or relatively low-impedance loads.
They are
particularly suitable for implementing buffer
registers, I/O ports, bidirectional bus drivers, and
working registers.
The
eight
latches
of
the
′ACT11533 are
transparent D-type latches. While the enable (C)
is high, the Q outputs will follow the complements
of the (D) inputs. When the output control OC is
taken low, the Q outputs will be latched.
The
′ACT11533 is functionally equivalent to the
′ACT11373 except for having inverted outputs.
A buffered output-control (OC) input can be used
to place the eight outputs in either a normal
logic state (high or low logic levels) or a high-
impedance state. In the high-impedance state,
the outputs neither load nor drive the bus lines
significantly. The high-impedance third state and
increased drive provide the capability to drive the
bus lines in a bus-organized system without need
for interface or pullup components.
The output control (OC) does not affect the
internal operations of the latches. Old data can be
retained or new data can be entered while the
outputs are off.
The 54ACT11533 is characterized for operation over the full military temperature range of −55
°C to 125°C. The
74ACT11533 is characterized for operation from − 40
°C to 85°C.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
1Q
2Q
3Q
4Q
GND
GND
GND
GND
5Q
6Q
7Q
8Q
OC
1D
2D
3D
4D
VCC
VCC
5D
6D
7D
8D
C
54ACT11533 . . . JT PACKAGE
74ACT11533 . . . DW OR NT PACKAGE
(TOP VIEW)
32 1
13 14
5
6
7
8
9
10
11
7D
8D
C
NC
8Q
7Q
6Q
2D
1D
OC
NC
1Q
2Q
3Q
4
15 16 17 18
54ACT11533 . . . FK PACKAGE
(TOP VIEW)
28 27 26
25
24
23
22
21
20
19
12
NC − No internal connection
OUTPUT
Q
INPUTS
L
L
L
H
H
H
L
X
H
L
X
X
OC
CD
L
H
Q0
Z
FUNCTION TABLE
(each latch)
EPIC is a trademark of Texas Instruments Incorporated.


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