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PDF MC74AC157 Data sheet ( Hoja de datos )
| Número de pieza | MC74AC157 | |
| Descripción | Quad 2-Input Multiplexer | |
| Fabricantes | ON Semiconductor | |
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MC74AC157, MC74ACT157
Quad 2-Input Multiplexer
The MC74AC157/74ACT157 is a high−speed quad 2−input
multiplexer. Four bits of data from two sources can be selected using
the common Select and Enable inputs. The four outputs present the
selected data in the true (non−inverted) form.
The MC74AC157/74ACT157 can also be used as a function
generator.
Features
• Outputs Source/Sink 24 mA
• ′ACT157 Has TTL Compatible Inputs
• These are Pb−Free Devices
VCC E I0c I1c Zc I0d I1d Zd
16 15 14 13 12 11 10 9
12345678
S I0a I1a Za I0b I1b Zb GND
Figure 1. Pinout: 16−Lead Packages Conductors
(Top View)
TRUTH TABLE
Inputs
E S I0 I1
HXXX
L HX L
LHXH
LLLX
L LHX
H = HIGH Voltage Level
L = LOW Voltage Level
X = Immaterial
Outputs
Z
L
L
H
L
H
www.onsemi.com
16
1
16
1
MARKING
DIAGRAMS
16
SOIC−16
D SUFFIX
CASE 751B
1
xxx157G
AWLYWW
TSSOP−16
DT SUFFIX
CASE 948F
16
xxx
157
ALYWG
G
1
xxx = AC or ACT
A = Assembly Location
WL or L = Wafer Lot
Y = Year
WW or W = Work Week
G or G = Pb−Free Package
(Note: Microdot may be in either location)
PIN NAMES
PIN
I0a−I0d
I1a−I1d
E
S
Za−Zd
FUNCTION
Source 0 Data Inputs
Source 0 Data Inputs
Enable Input
Select Input
Outputs
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 6 of this data sheet.
© Semiconductor Components Industries, LLC, 2015
January, 2015 − Rev. 8
1
Publication Order Number:
MC74AC157/D
1 page  
MC74AC157, MC74ACT157
DC CHARACTERISTICS
74ACT
74ACT
Symbol
Parameter
VCC
(V)
TA = +25°C
TA =
−40°C to
+85°C
Unit
Conditions
Typ Guaranteed Limits
VIH Minimum High Level
Input Voltage
VIL Maximum Low Level
Input Voltage
VOH 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 mA
4.5 − 3.86
5.5 − 4.86
3.76
4.76
*VIN = VIL or VIH
V −24 mA
IOH −24 mA
VOL Maximum Low Level
Output Voltage
4.5 0.001 0.1
5.5 0.001 0.1
0.1
0.1
V IOUT = 50 mA
4.5 − 0.36
5.5 − 0.36
0.44
0.44
*VIN = VIL or VIH
V
IOL
24 mA
24 mA
IIN Maximum Input
Leakage Current
5.5 − ±0.1
±1.0
mA VI = VCC, GND
DICCT
Additional Max. ICC/Input
5.5 0.6 −
1.5
mA VI = VCC − 2.1 V
IOLD
IOHD
†Minimum Dynamic
Output Current
5.5 − −
5.5 − −
75
−75
mA VOLD = 1.65 V Max
mA VOHD = 3.85 V Min
ICC Maximum Quiescent
Supply Current
5.5 −
*All outputs loaded; thresholds on input associated with output under test.
†Maximum test duration 2.0 ms, one output loaded at a time.
8.0
80
mA VIN = VCC or GND
AC CHARACTERISTICS (For Figures and Waveforms − See Section 3 of the ON Semiconductor FACT Data Book, DL138/D)
74ACT
74ACT
Symbol
Parameter
VCC*
(V)
TA = +25°C
CL = 50 pF
Min Typ Max
TA = −40°C
to +85°C
CL = 50 pF
Min Max
Unit
Fig.
No.
tPLH
Propagation Delay
S to Zn
tPHL
Propagation Delay
S to Zn
tPLH
Propagation Delay
En to Zn
tPHL
Propagation Delay
En to Zn
tPLH
Propagation Delay
In to Zn
tPHL
Propagation Delay
In to Zn
*Voltage Range 5.0 V is 5.0 V ±0.5 V.
5.0 2.0 − 9.0 1.5 10.0 ns
5.0 2.0 − 9.5 2.0 10.5 ns
5.0 1.5 − 10 1.5 11.5 ns
5.0 1.5 − 8.5 1.0 9.0 ns
5.0 1.5 − 7.0 1.0 8.5 ns
5.0 1.5 − 7.5 1.0 8.5 ns
3−6
3−6
3−6
3−6
3−5
3−5
CAPACITANCE
Symbol
Parameter
Value − Typ
Unit
Test Conditions
CIN Input Capacitance
4.5 pF
VCC = 5.0 V
CPD Power Dissipation Capacitance
50 pF
VCC = 5.0 V
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| PDF Descargar | [ Datasheet MC74AC157.PDF ] | |
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