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Motorola Semiconductors - DUAL 4-INPUT MULTIPLEXER WITH 3-STATE OUTPUTS

Numéro de référence MC74AC353
Description DUAL 4-INPUT MULTIPLEXER WITH 3-STATE OUTPUTS
Fabricant Motorola Semiconductors 
Logo Motorola Semiconductors 





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MC74AC353 fiche technique
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MC74AC353
MC74ACT353
Dual 4ĆInput Multiplexer
with 3ĆState 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.
Inverted Version of the MC74AC253/74ACT253
Multifunction Capability
Separate Enables for Each Multiplexer
Outputs Source/Sink 24 mA
• ′ACT353 Has TTL Compatible Inputs
VCC OEb S0 I3b I2b I1b I0b Zb
16 15 14 13 12 11 10 9
12345678
OEa S1 I3a I2a I1a I0a Za GND
PIN NAMES
I0a–I3a
I0b–I3b
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
TRUTH TABLE
Select
Inputs
Data Inputs
Output
Enable
S0 S1 I0 I1 I2 I3
XXXXXX
L L LXXX
L LHXXX
HLXLXX
H L XHXX
L HXX L X
LHXXHX
HHXXX L
HHXXXH
OE
H
L
L
L
L
L
L
L
L
Address inputs S0 and S1 are common to both sections.
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
Z = High Impedance
Outputs
Z
Z
H
L
H
L
H
L
H
L
LOGIC SYMBOL
OEa I0a I1a I2a I3a I0b I1b I2b I3b OEb
S0
S1
Za Zb
DataSheet4 U .com
FACT DATA
5-1

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