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MC74AC353 Schematic ( PDF Datasheet ) - Motorola Semiconductors

Teilenummer MC74AC353
Beschreibung DUAL 4-INPUT MULTIPLEXER WITH 3-STATE OUTPUTS
Hersteller Motorola Semiconductors
Logo Motorola Semiconductors Logo 




Gesamt 8 Seiten
MC74AC353 Datasheet, Funktion
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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






MC74AC353 Datasheet, Funktion
www.DataSheet4U.com
MC74AC353 MC74ACT353
DC CHARACTERISTICS
74ACT
74ACT
Symbol
Parameter
VCC
(V)
TA = +25°C
TA =
–40°C to +85°C
Unit
Conditions
Typ Guaranteed Limits
VIH
VIL
VOH
Minimum High Level
Input Voltage
Maximum Low Level
Input Voltage
Minimum High Level
Output Voltage
4.5 1.5 2.0
5.5 1.5 2.0
4.5 1.5 0.8
5.5 1.5 0.8
4.5 4.49 4.4
5.5 5.49 5.4
2.0
2.0
0.8
0.8
4.4
5.4
V
VOUT = 0.1 V
or VCC – 0.1 V
V
VOUT = 0.1 V
or VCC – 0.1 V
V IOUT = –50 µA
VOL
Maximum Low Level
Output Voltage
4.5 3.86
5.5 4.86
4.5 0.001 0.1
5.5 0.001 0.1
3.76
4.76
0.1
0.1
*VIN = VIL or VIH
V
IOH
–24 mA
–24 mA
V IOUT = 50 µA
IIN Maximum Input
Leakage Current
*VIN = VIL or VIH
4.5
5.5
0.36 0.44
0.36 0.44
V
IOL
24 mA
24 mA
5.5
±0.1 ±1.0
µA VI = VCC, GND
ICCT
IOZ
IOLD
IOHD
ICC
Additional Max. ICC/Input
Maximum
3-State
Current
†Minimum Dynamic
Output Current
Maximum Quiescent
Supply Current
5.5 0.6
5.5 ±0.5
5.5
5.5
5.5 8.0
1.5
±5.0
75
–75
80
mA VI = VCC – 2.1 V
VI (OE) = VIL, VIH
µA VI = VCC, GND
VO = VCC, GND
mA VOLD = 1.65 V Max
mA VOHD = 3.85 V Min
µA VIN = VCC or GND
* All outputs loaded; thresholds on input associated with output under test.
† Maximum test duration 2.0 ms, one output loaded at a time.
DataSheet4 U .com
FACT DATA
5-6

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