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74ACT11253 Datasheet(Hoja de datos) 1 Page - Texas Instruments

No. de Pieza. 74ACT11253
Descripción  DUAL 1-OF-4 DATA SELECTORS/MULTIPLEXERS WITH 3-STATE OUTPUTS
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Fabricante  TI1 [Texas Instruments]
Página de inicio  http://www.ti.com
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54ACT11253, 74ACT11253
DUAL 1OF4 DATA SELECTORS/MULTIPLEXERS
WITH 3STATE OUTPUTS
SCAS040A − D3110, MARCH 1988 − REVISED APRIL 1993
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
POST OFFICE BOX 1443
HOUSTON, TEXAS 77001
Copyright
1993, Texas Instruments Incorporated
2−1
Inputs Are TTL-Voltage Compatible
3-State Version of ′ACT11153
Permits Multiplexing From N Lines to
One Line
Performs Parallel-to-Serial Conversion
Package Options Include Plastic Small-
Outline Packages, Ceramic Chip Carriers,
and Standard Plastic and Ceramic 300-mil
DIPs
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
description
Each
of
these
data
selectors/multiplexers
contains inverters and drivers to supply full binary
decoding data selection to the AND-OR gates.
Separate output control inputs are provided for
each of the two four-line sections.
The 3-state outputs can interface with and drive
data lines of bus-organized systems. With all but
one of the common outputs disabled (at a
high-impedance state), the low-impedance of
the single enabled output will drive the bus line
to a high or low logic level.
Each output has
its own strobe (G). The outputs are disabled when
G is high.
The 54ACT11253 is characterized for operation
over the full military temperature range of − 55
°C
to 125
°C. The 74ACT11253 is characterized for
operation from − 40
°C to 85°C.
FUNCTION TABLE
SELECT
INPUTS
DATA INPUTS
OUTPUT
CONTROL
OUTPUT
Y
B
A
C0
C1
C2
C3
CONTROL
G
Y
X
X
X
X
X
X
H
Z
L
LL
XXX
L
L
L
LH
XXX
L
H
L
HX
LX
X
L
L
L
HX
HX
X
L
H
H
LX
XLX
L
L
H
LX
XHX
L
H
H
HX
XX
L
L
L
H
H
X
X
X
H
L
H
Address inputs A and B are common to both sections.
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
A
B
1Y
GND
2Y
1G
2G
2C3
1C0
1C1
1C2
1C3
VCC
2C0
2C1
2C2
(TOP VIEW)
3
2
1 20 19
910 11 12 13
4
5
6
7
8
18
17
16
15
14
2C1
2C2
NC
2C3
2G
1C1
1C0
NC
A
B
54ACT11253 . . . FK PACKAGE
(TOP VIEW)
NC − No internal connection
logic symbol
2Y
1Y
5
3
2C2
2C1
2C0
2G
1C3
1C2
1C1
1G
B
A
9
10
11
7
13
14
15
6
2
1
EN
1
0
16
2C3
8
0
1
2
3
MUX
G
0
3
† This symbol is in accordance with ANSI/IEEE Std 91-1984
and IEC Publication 617-12.
Pin numbers shown are for the D, J, and N packages.
1C0
54ACT11253 ...J PACKAGE
74ACT11253 ...D OR N PACKAGE
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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