74HC253; 74HCT253
Dual 4-input multiplexer; 3-state
Rev. 03 — 22 April 2010
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
1
1OE
1Y
6
5
4
3
6
5
4
3
10
11
12
13
14
2
14
2
1
15
1I0 1I1 1I2 1I3 2I0 2I1 2I2 2I3
S0
S1
1OE
2OE
1Y
7
2Y
9
001aal850
1I0
1I1
1I2
1I3
S0
S1
2I0
2I1
2I2
2I3
MUX
MUX
7
10
11
12
13
2Y
9
2OE
15
001aal851
Fig 1.
Logic symbol
Fig 2.
Functional diagram
74HC_HCT253_3
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 03 — 22 April 2010
2 of 17
NXP Semiconductors
74HC253; 74HCT253
Dual 4-input multiplexer; 3-state
1OE
1I3
1I2
1I1
1I0
S0
S1
2I3
2I2
2I1
2I0
2OE
1Y
2Y
001aal852
Fig 3.
Logic diagram
6. Pinning information
6.1 Pinning
74HC253
74HCT253
1OE
S1
1I3
1I2
1I1
1I0
1Y
GND
1
2
3
4
5
6
7
8
001aal853
16 V
CC
15 2OE
14 S0
13 2I3
12 2I2
11 2I1
10 2I0
9
2Y
1OE
S1
1l3
1l2
1l1
1l0
1Y
GND
1
2
3
4
5
6
7
8
74HC253
74HCT253
16 V
CC
15 2OE
14 S0
13 2l3
12 2l2
11 2l1
10 2l0
9
001aal854
2Y
Fig 4.
Pin configuration DIP16, SO16
Fig 5.
Pin configuration SSOP16
74HC_HCT253_3
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 03 — 22 April 2010
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_3
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 03 — 22 April 2010
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
DIP16 package
SO16 package
SSOP16 package
[1]
[2]
[3]
[4]
Conditions
T
amb
=
−40 °C
to +125
°C
[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
Δt/ΔV
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_3
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 03 — 22 April 2010
5 of 17
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