74VHC153 Dual 4-Input Multiplexer
May 2007
74VHC153
Dual 4-Input Multiplexer
Features
■
High Speed: t
PD
=
5.0ns at T
A
=
25°C
■
Low power dissipation: I
CC
=
4µA (Max.) at T
A
=
25°C
■
High noise immunity: V
NIH
=
V
NIL
=
28% V
CC
(Min.)
■
Power down protection is provided on all inputs
■
Pin and function compatible with 74HC153
tm
General Description
The VHC153 is an advanced high-speed CMOS device
fabricated with silicon gate CMOS technology. It
achieves the high-speed operation similar to equivalent
Bipolar Schottky TTL while maintaining the CMOS low
power dissipation. The VHC153 is a high-speed Dual
4-Input Multiplexer with common select inputs and indi-
vidual enable inputs for each section. It can select two
lines of data from four sources. The two buffered outputs
present data in the true (non-inverted) form. In addition
to multiplexer operation, the VHC153 can act as a func-
tion generator and generate any two functions of three
variables. An input protection circuit insures that 0V to
7V can be applied to the input pins without regard to the
supply voltage. This device can be used to interface 5V
to 3V systems and two supply systems such as battery
backup. This circuit prevents device destruction due to
mismatched supply and input voltages.
Ordering Information
Order
Number
74VHC153M
74VHC153SJ
74VHC153MTC
Package
Number
M16A
M16D
MTC16
Package Description
16-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-012, 0.150" Narrow
16-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
16-Lead Thin Shrink Small Outline Package (TSSOP), JEDEC MO-153, 4.4mm
Wide
Surface mount packages are also available on Tape and Reel. Specify by appending the suffix letter “X” to the
ordering number.
Connection Diagram
Pin Description
Pin Names
I
0a
–I
3a
I
0b
–I
3b
S
0
, S
1
E
a
E
b
Z
a
Z
b
Description
Side A Data Inputs
Side B Data Inputs
Common Select Inputs
Side A Enable Input
Side B Enable Input
Side A Output
Side B Output
©1993 Fairchild Semiconductor Corporation
74VHC153 Rev. 1.2
www.fairchildsemi.com
74VHC153 Dual 4-Input Multiplexer
Logic Symbols
Functional Description
The VHC153 is a dual 4-input multiplexer. It can select two
bits of data from up to four sources under the control of the
common Select inputs (S
0
, S
1
). The two 4-input multi-
plexer circuits have individual active-LOW Enables (E
a
,
E
b
) which can be used to strobe the outputs indepen-
dently. When the Enables (E
a
, E
b
) are HIGH, the corre-
sponding outputs (Z
a
, Z
b
) are forced LOW. The VHC153 is
the logic implementation of a 2-pole, 4-position switch,
where the position of the switch is determined by the logic
levels supplied to the Select inputs. The logic equations for
the outputs are shown below.
IEEC/IEC
Z
a
=
E
a
• (I
0a
• S
1
• S
0
+ I
1a
• S
1
• S
0
+ I
2a
• S
1
• S
0
+ I
3a
• S
1
• S
0
)
Z
b
=
E
b
• (I
0b
• S
1
• S
0
+ I
1b
• S
1
• S
0
+ I
2b
• S
1
• S
0
+ I
3b
• S
1
• S
0
)
Truth Table
Select
Inputs
S
0
X
L
L
H
H
L
L
H
H
Inputs (a or b)
E
H
L
L
L
L
L
L
L
L
Output
I
3
X
X
X
X
X
X
X
L
H
S
1
X
L
L
L
L
H
H
H
H
I
0
X
L
H
X
X
X
X
X
X
I
1
X
X
X
L
H
X
X
X
X
I
2
X
X
X
X
X
L
H
X
X
Z
L
L
H
L
H
L
H
L
H
H
=
HIGH Voltage Level
L
=
LOW Voltage Level
X
=
Immaterial
©1993 Fairchild Semiconductor Corporation
74VHC153 Rev. 1.2
www.fairchildsemi.com
2
74VHC153 Dual 4-Input Multiplexer
Logic Diagram
Please note that this diagram is provided only for the understanding of logic operations and should not be used to
estimate propagation delays.
©1993 Fairchild Semiconductor Corporation
74VHC153 Rev. 1.2
www.fairchildsemi.com
3
74VHC153 Dual 4-Input Multiplexer
Absolute Maximum Ratings
Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be
operable above the recommended operating conditions and stressing the parts to these levels is not recommended.
In addition, extended exposure to stresses above the recommended operating conditions may affect device reliability.
The absolute maximum ratings are stress ratings only.
Symbol
V
CC
V
IN
V
OUT
I
IK
I
OK
I
OUT
I
CC
T
STG
T
L
Supply Voltage
DC Input Voltage
DC Output Voltage
Input Diode Current
Output Diode Current
DC Output Current
DC V
CC
/ GND Current
Storage Temperature
Parameter
Rating
–0.5V to +7.0V
–0.5V to +7.0V
–0.5V to V
CC
+ 0.5V
–20mA
±20mA
±25mA
±50mA
–65°C to +150°C
260°C
Lead Temperature (Soldering, 10 seconds)
Recommended Operating Conditions
(1)
The Recommended Operating Conditions table defines the conditions for actual device operation. Recommended
operating conditions are specified to ensure optimal performance to the datasheet specifications. Fairchild does not
recommend exceeding them or designing to absolute maximum ratings.
Symbol
V
CC
V
IN
V
OUT
T
OPR
t
r
, t
f
Supply Voltage
Input Voltage
Output Voltage
Operating Temperature
Input Rise and Fall Time,
V
CC
=
3.3V ± 0.3V
V
CC
=
5.0V ± 0.5V
Parameter
Rating
2.0V to +5.5V
0V to +5.5V
0V to V
CC
–40°C to +85°C
0ns/V
∼
100ns/V
0ns/V
∼
20ns/V
Note:
1. Unused inputs must be held HIGH or LOW. They may not float.
©1993 Fairchild Semiconductor Corporation
74VHC153 Rev. 1.2
www.fairchildsemi.com
4
74VHC153 Dual 4-Input Multiplexer
DC Electrical Characteristics
T
A
=
25°C
Symbol
V
IH
V
IL
V
OH
T
A
=
–40°C to
+85°C
Max.
Min.
1.50
0.7 x V
CC
0.50
0.3 x V
CC
0.50
0.3 x V
CC
1.9
2.9
4.4
2.48
3.80
V
V
Parameter
HIGH Level Input
Voltage
LOW Level Input
Voltage
HIGH Level
Output Voltage
V
CC
(V)
2.0
3.0–5.5
2.0
3.0–5.5
2.0
3.0
4.5
3.0
4.5
Conditions
Min.
1.50
0.7 x V
CC
Typ.
Max.
Units
V
V
IN
=
V
IH
or V
IL
I
OH
=
–50µA
1.9
2.9
4.4
2.0
3.0
4.5
I
OH
=
–4mA
I
OH
=
–8mA
V
IN
=
V
IH
or V
IL
I
OL
=
50µA
2.58
3.94
0.0
0.0
0.0
0.1
0.1
0.1
0.36
0.36
±0.1
4.0
V
OL
LOW Level
Output Voltage
2.0
3.0
4.5
3.0
4.5
0.1
0.1
0.1
0.44
0.44
±1.0
40.0
V
I
OL
=
4mA
I
OL
=
8mA
V
IN
=
5.5V or GND
V
IN
=
V
CC
or GND
I
IN
I
CC
Input Leakage
Current
Quiescent
Supply Current
0–5.5
5.5
µA
µA
AC Electrical Characteristics
T
A
=
25°C
Symbol
t
PLH
, t
PHL
T
A
=
–40°C
to +85°C
Min.
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
1.0
Parameter
Propagation Delay,
I
n
to Z
n
V
CC
(V)
3.3 ± 0.3
5.0 ± 0.5
Conditions
C
L
=
15pF
C
L
=
50pF
C
L
=
15pF
C
L
=
50pF
C
L
=
15pF
C
L
=
50pF
C
L
=
15pF
C
L
=
50pF
C
L
=
15pF
C
L
=
50pF
C
L
=
15pF
C
L
=
50pF
V
CC
=
Open
(2)
Min.
Typ.
7.7
10.2
5.0
6.5
10.8
13.3
6.8
8.3
6.3
8.8
4.4
5.9
4
20
Max.
11.9
15.4
7.7
9.7
16.7
20.2
9.9
11.9
10.1
13.6
6.4
8.4
10
Max.
14.0
17.5
9.0
11.0
19.5
23.0
11.5
13.5
12.0
15.5
7.5
9.5
10
Units
ns
ns
ns
ns
ns
ns
pF
pF
t
PLH
, t
PHL
Propagation Delay,
S
n
to Z
n
3.3 ± 0.3
5.0 ± 0.5
t
PLH
, t
PHL
Propagation Delay,
E
n
to Z
n
3.3 ± 0.3
5.0 ± 0.5
C
IN
C
PD
Input Capacitance
Power Dissipation
Capacitance
Note:
2. C
PD
is defined as the value of the internal equivalent capacitance which is calculated from the operating current
consumption without load. Average operating current can be obtained by the equation: I
CC
(opr.)
=
C
PD
• V
CC
• f
IN
+ I
CC
©1993 Fairchild Semiconductor Corporation
74VHC153 Rev. 1.2
www.fairchildsemi.com
5
嵌入式系统
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