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74ACT11873 Datasheet(Hoja de datos) 1 Page - Texas Instruments

No. de Pieza. 74ACT11873
Descripción  DUAL 4-BIT D-TYPE LATCH 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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74ACT11873
DUAL 4BIT DTYPE LATCH
WITH 3-STATE OUTPUTS
SCAS096 − FEBRUARY 1990 − REVISED APRIL 1993
Copyright
1993, Texas Instruments Incorporated
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Inputs Are TTL-Voltage Compatible
3-State Buffer-Type Outputs Drive Bus
Lines Directly
Bus-Structured Pinout
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 and Standard Plastic
300-mil DIPs
description
These dual 4-bit registers feature 3-state outputs designed specifically for bus driving. This makes these
devices particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working
registers.
The dual 4-bit latch is transparent D-type. When the latch enable input (1C or 2C) is high, the (Q) outputs will
follow the data (D) inputs in true form, according to the function table. When the latch enable input is taken low,
the outputs will be latched. When CLR goes low, the Q outputs go low independently of enable C. The outputs
are in a high-impedance state when OC (output control) is at a high logic level.
The 74ACT11873 is characterized for operation from − 40
°C to 85°C.
OC
L
L
L
L
H
CLR
L
H
H
H
X
C
X
H
H
L
X
D
X
H
L
X
X
OUTPUT
Q
L
H
L
Qo
Z
INPUTS
FUNCTION TABLE
DW OR NT PACKAGE
(TOP VIEW)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
1C
1Q1
1Q2
1Q3
1Q4
GND
GND
GND
GND
2Q1
2Q2
2Q3
2Q4
2C
1OC
1CLR
1D1
1D2
1D3
1D4
VCC
VCC
2D1
2D2
2D3
2D4
2CLR
2OC
EPIC is a trademark of Texas Instruments Incorporated.
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.




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