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74ACT11534 Datasheet(Hoja de datos) 1 Page - Texas Instruments

No. de Pieza. 74ACT11534
Descripción  OCTAL D-TYPE EDGE-TRIGGERED FLIP-FLOPS WITH 3-STATE OUTPUTS
Descarga  7 Pages
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Fabricante  TI1 [Texas Instruments]
Página de inicio  http://www.ti.com
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54ACT11534, 74ACT11534
OCTAL DTYPE EDGETRIGGERED FLIPFLOPS
WITH 3STATE OUTPUTS
SCAS038A − D2957, JULY 1987 − REVISED APRIL 1993
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
POST OFFICE BOX 1443
HOUSTON, TEXAS 77001
Copyright
1993, Texas Instruments Incorporated
2−1
Eight D-Type Flip-Flops in a Single Package
3-State Bus Driving Inverting Outputs
Full Parallel Access for Loading
Inputs Are TTL-Voltage Compatible
Flow-Through Architecture to Optimize
PCB Layout
Center-Pin V
CC and GND Configurations to
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 flip-flops feature 3-state outputs
designed for implementing buffer registers, I/O
ports, bidirectional bus drivers, and working
registers.
The eight flip-flops of the
′ACT11534 are
edge-triggered D-type flip-flops. On the positive
transition of the clock, the Q outputs are set to the
complement of the logic levels at the D inputs. The
′ACT11534 is functionally equivalent to the
′ACT11373 except for having inverted outputs.
An output-control input (OC) is 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 pull-up components. The output control (OC)
does not affect the internal operations of the
flip-flops. Old data can be retained, or new data
can be entered while the outputs are in the
high-impedance state.
The 54ACT11534 is characterized for operation
over the full military temperature range of − 55
°C
to 125
°C. The 74ACT11534 is characterized for
operation from − 40
°C to 85°C.
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
CLK
54ACT11534 . . . JT PACKAGE
74ACT11534 . . . DW OR NT PACKAGE
(TOP VIEW)
32 1
13 14
5
6
7
8
9
10
11
7D
8D
CLK
NC
8Q
7Q
6Q
2D
1D
OC
NC
1Q
2Q
3Q
4
15 16 17 18
54ACT11534 . . . FK PACKAGE
(TOP VIEW)
28 27 26
25
24
23
22
21
20
19
12
INPUTS
OUTPUT
Q
L
L
L
H
FUNCTION TABLE
(each flip-flop)
OC
CLK
D
L
X
H
L
X
X
L
H
Q0
Z
NC − No internal connection
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.
EPIC is a trademark of Texas Instruments Incorporated.




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