74HC253; 74HCT253
Dual 4-input multiplexer; 3-state
Rev. 5 — 21 January 2015
Product data sheet
1. General description
The 74HC253; 74HCT253 are high-speed Si-gate CMOS devices and are pin compatible
with Low-power Schottky TTL (LSTTL).
The 74HC253; 74HCT253 provides a dual 4-input multiplexer with 3-state outputs which
selects 2 bits of data from up to four sources selected by common data select inputs (S0,
S1). The two 4-input multiplexer circuits have individual active LOW output enable inputs
(1OE, 2OE).
The 74HC253 and 74HCT253 are the logic implementation of a 2-pole, 4-position switch,
where the position of the switch is determined by the logic levels applied to S0 and S1.
The outputs are forced to a high-impedance OFF-state when nOE is HIGH.
The logic equations for the outputs are:
1Y
=
1OE
1I0
S1
S0
+
1I1
S1
S0
+
1I2
S1
S0
+
1I3
S1
S0
2Y
=
2OE
2I0
S1
S0
+
2I1
S1
S0
+
2I2
S1
S0
+
2I3
S1
S0
2. Features and benefits
Non-inverting data path
3-state outputs interface directly with system bus
Complies with JEDEC standard no. 7A
Common select inputs
Separate output enable inputs
Input levels:
For 74HC253: CMOS level
For 74HCT253: TTL level
ESD protection:
HBM JESD22-A114F exceeds 2000 V
MM JESD22-A115-A exceeds 200 V
Multiple package options
Specified from
40 C
to +85
C
and from
40 C
to +125
C
NXP Semiconductors
74HC253; 74HCT253
Dual 4-input multiplexer; 3-state
3. Applications
Data selectors
Data multiplexers
4. Ordering information
Table 1.
Ordering information
Package
Temperature range
74HC253N
74HCT253N
74HC253D
74HCT253D
74HC253DB
74HCT253DB
40 C
to +125
C
SSOP16
40 C
to +125
C
SO16
plastic small outline package; 16 leads; body width
3.9 mm
plastic shrink small outline package; 16 leads;
body width 5.3 mm
SOT109-1
SOT338-1
40 C
to +125
C
Name
DIP16
Description
plastic dual in-line package; 16 leads (300 mil)
Version
SOT38-4
Type number
5. Functional diagram
Fig 1.
Logic symbol
Fig 2.
Functional diagram
74HC_HCT253
All information provided in this document is subject to legal disclaimers.
© NXP Semiconductors N.V. 2015. All rights reserved.
Product data sheet
Rev. 5 — 21 January 2015
2 of 17
NXP Semiconductors
74HC253; 74HCT253
Dual 4-input multiplexer; 3-state
Fig 3.
Logic diagram
6. Pinning information
6.1 Pinning
Fig 4.
Pin configuration DIP16, SO16
Fig 5.
Pin configuration SSOP16
74HC_HCT253
All information provided in this document is subject to legal disclaimers.
© NXP Semiconductors N.V. 2015. All rights reserved.
Product data sheet
Rev. 5 — 21 January 2015
3 of 17
NXP Semiconductors
74HC253; 74HCT253
Dual 4-input multiplexer; 3-state
6.2 Pin description
Table 2.
Symbol
1OE, 2OE
S0, S1
1I0, 1I1, 1I2, 1I3
1Y
GND
2Y
2I0, 2I1, 2I2, 2I3
V
CC
Pin description
Pin
1, 15
14, 2
6, 5, 4, 3
7
8
9
10, 11, 12, 13
16
Description
output enable inputs (active LOW)
data select inputs
data inputs source 1
multiplexer output source 1
ground (0 V)
multiplexer output source 2
data inputs source 2
supply voltage
7. Functional description
Table 3.
S0
X
L
L
H
H
L
L
H
H
[1]
Function table
[1]
data inputs
S1
X
L
L
L
L
H
H
H
H
nI0
X
L
H
X
X
X
X
X
X
nI1
X
X
X
L
H
X
X
X
X
nI2
X
X
X
X
X
L
H
X
X
nI3
X
X
X
X
X
X
X
L
H
output enable
nOE
H
L
L
L
L
L
L
L
L
output
nY
Z
L
H
L
H
L
H
L
H
select Inputs
H = HIGH voltage level; L = LOW voltage level; X = don’t care; Z = high-impedance OFF-state.
8. Limiting values
Table 4.
Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to GND (ground = 0 V).
Symbol
V
CC
I
IK
I
OK
I
O
I
CC
I
GND
T
stg
Parameter
supply voltage
input clamping current
output clamping current
output current
supply current
ground current
storage temperature
V
I
<
0.5
V or V
I
> V
CC
+ 0.5 V
V
O
<
0.5
V or V
O
> V
CC
+ 0.5 V
0.5
V < V
O
< V
CC
+ 0.5 V
[1]
[1]
Conditions
Min
0.5
-
-
-
-
70
65
Max
+7.0
20
50
35
70
-
+150
Unit
V
mA
mA
mA
mA
mA
C
74HC_HCT253
All information provided in this document is subject to legal disclaimers.
© NXP Semiconductors N.V. 2015. All rights reserved.
Product data sheet
Rev. 5 — 21 January 2015
4 of 17
NXP Semiconductors
74HC253; 74HCT253
Dual 4-input multiplexer; 3-state
Table 4.
Limiting values
…continued
In accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to GND (ground = 0 V).
Symbol
P
tot
Parameter
total power dissipation
Conditions
T
amb
=
40 C
to +125
C
DIP16 package
SO16 package
SSOP16 package
[1]
[2]
[3]
[4]
[2]
[3]
[4]
Min
-
-
-
Max
750
500
500
Unit
mW
mW
mW
The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
P
tot
derates linearly with 12 mW/K above 70
C.
P
tot
derates linearly with 8 mW/K above 70
C.
P
tot
derates linearly with 5.5 mW/K above 60
C.
9. Recommended operating conditions
Table 5.
Recommended operating conditions
Voltages are referenced to GND (ground = 0 V)
Symbol Parameter
V
CC
V
I
V
O
T
amb
t/V
supply voltage
input voltage
output voltage
ambient temperature
input transition rise and fall rate
V
CC
= 2.0 V
V
CC
= 4.5 V
V
CC
= 6.0 V
Conditions
Min
2.0
0
0
40
-
-
-
74HC253
Typ
5.0
-
-
-
-
1.67
-
Max
6.0
V
CC
V
CC
+125
625
139
83
Min
4.5
0
0
40
-
-
-
74HCT253
Typ
5.0
-
-
-
-
1.67
-
Max
5.5
V
CC
V
CC
+125
-
139
-
V
V
V
C
ns/V
ns/V
ns/V
Unit
10. Static characteristics
Table 6.
Static characteristics
At recommended operating conditions; voltages are referenced to GND (ground = 0 V).
Symbol Parameter
74HC253
V
IH
HIGH-level
input voltage
V
CC
= 2.0 V
V
CC
= 4.5 V
V
CC
= 6.0 V
V
IL
LOW-level
input voltage
V
CC
= 2.0 V
V
CC
= 4.5 V
V
CC
= 6.0 V
1.5
3.15
4.2
-
-
-
1.2
2.4
3.2
0.8
2.1
2.8
-
-
-
0.5
1.35
1.8
1.5
3.15
4.2
-
-
-
-
-
-
0.5
1.35
1.8
1.5
3.15
4.2
-
-
-
-
-
-
0.5
1.35
1.8
V
V
V
V
V
V
Conditions
Min
25
C
Typ
Max
40 C
to +85
C 40 C
to +125
C
Unit
Min
Max
Min
Max
74HC_HCT253
All information provided in this document is subject to legal disclaimers.
© NXP Semiconductors N.V. 2015. All rights reserved.
Product data sheet
Rev. 5 — 21 January 2015
5 of 17
传感器
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