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74ACT353 Datasheet

  • 74ACT353

  • DUAL 4-INPUT MULTIPLEXER WITH 3-STATE OUTPUTS

  • 8頁

  • MOTOROLA   MOTOROLA

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MC74AC353
MC74ACT353
Dual 4 Input Multiplexer
with 3 State Outputs
The MC74AC353/74ACT353 is a dual 4-input multiplexer with 3-state outputs.
It can select two bits of data from four sources using common Select inputs. The
outputs may be individually switched to a high impedance state with a HIGH on the
respective Output Enable (OE) inputs, allowing the outputs to interface directly with
bus-oriented systems.
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Inverted Version of the MC74AC253/74ACT253
Multifunction Capability
Separate Enables for Each Multiplexer
Outputs Source/Sink 24 mA
鈥睞CT353
Has TTL Compatible Inputs
VCC
16
OEb
15
S0
14
I3b
13
I2b
12
I1b
11
I0b
10
Zb
9
PIN NAMES
I0a鈥揑3a
I0b鈥揑3b
S0, S1
OEa
OEb
Za, Zb
Side A Data Inputs
Side B Data Inputs
Common Select Inputs
Side A Enable Input
Side B Enable Input
Multiplexer Outputs
DUAL 4-INPUT
MULTIPLEXER WITH
3-STATE OUTPUTS
N SUFFIX
CASE 648-08
PLASTIC
D SUFFIX
CASE 751B-05
PLASTIC
1
OEa
2
S1
3
I3a
4
I2a
5
I1a
6
I0a
7
Za
8
GND
TRUTH TABLE
Select
Inputs
S0
X
L
L
H
H
L
L
H
H
S1
X
L
L
L
L
H
H
H
H
I0
X
L
H
X
X
X
X
X
X
Data Inputs
I1
X
X
X
L
H
X
X
X
X
I2
X
X
X
X
X
L
H
X
X
I3
X
X
X
X
X
X
X
L
H
Output
Enable
OE
H
L
L
L
L
L
L
L
L
Outputs
Z
Z
H
L
H
L
H
L
H
L
OEa I0a I1a I2a I3a I0b I1b I2b I3b OEb
LOGIC SYMBOL
S0
S1
Za
Zb
Address inputs S0 and S1 are common to both sections.
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
Z = High Impedance
FACT DATA
5-1

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