74HC257-Q100; 74HCT257-Q100
Quad 2-input multiplexer; 3-state
Rev. 1 — 27 July 2015
Product data sheet
1. General description
The 74HC257-Q100; 74HCT257-Q100 is a quad 2-input multiplexer with 3-state outputs.
Inputs include clamp diodes. It enables the use of current limiting resistors to interface
inputs to voltages in excess of V
CC
.
This product has been qualified to the Automotive Electronics Council (AEC) standard
Q100 (Grade 1) and is suitable for use in automotive applications.
2. Features and benefits
Automotive product qualification in accordance with AEC-Q100 (Grade 1)
Specified from
40 C
to +85
C
and from
40 C
to +125
C
Non-inverting data path
3-state outputs interface directly with system bus
Complies with JEDEC standard no. 7A
Input levels:
For 74HC257: CMOS level
For 74HCT257: TTL level
ESD protection:
MIL-STD-883, method 3015 exceeds 2000 V
HBM JESD22-A114F exceeds 2000 V
MM JESD22-A115-A exceeds 200 V (C = 200 pF, R = 0
)
Specified from
40 C
to +85
C
and from
40 C
to +125
C
3. Ordering information
Table 1.
Ordering information
Package
Temperature range
74HC257D-Q100
74HCT257D-Q100
74HC257PW-Q100
74HCT257PW-Q100
40 C
to +125
C
40 C
to +125
C
Name
SO16
Description
plastic small outline package; 16 leads;
body width 3.9 mm
Version
SOT109-1
Type number
TSSOP16 plastic thin shrink small outline package; 16 leads; SOT403-1
body width 4.4 mm
Nexperia
74HC257-Q100; 74HCT257-Q100
Quad 2-input multiplexer; 3-state
4. Functional diagram
Fig 1.
Logic symbol
Fig 2.
IEC logic symbol
Fig 3.
Functional diagram
74HC_HCT257_Q100
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2017. All rights reserved
Product data sheet
Rev. 1 — 27 July 2015
2 of 16
Nexperia
74HC257-Q100; 74HCT257-Q100
Quad 2-input multiplexer; 3-state
Fig 4.
Logic diagram
5. Pinning information
5.1 Pinning
Fig 5.
Pin configuration SO16 and TSSOP16
74HC_HCT257_Q100
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2017. All rights reserved
Product data sheet
Rev. 1 — 27 July 2015
3 of 16
Nexperia
74HC257-Q100; 74HCT257-Q100
Quad 2-input multiplexer; 3-state
5.2 Pin description
Table 2.
Symbol
S
1I0 to 4I0
1I1 to 4I1
1Y to 4Y
GND
OE
V
CC
Pin description
Pin
1
2, 5, 11, 14
3, 6, 10, 13
4, 7, 9, 12
8
15
16
Description
common data select input
data input from source 0
data input from source 1
3-state multiplexer output
ground (0 V)
3-state output enable input (active LOW)
supply voltage
6. Functional description
6.1 Function table
Table 3.
Control
OE
H
L
L
L
L
[1]
Function table
[1]
Input
S
X
H
H
L
L
nl0
X
X
X
L
H
nl1
X
L
H
X
X
Output
nY
Z
L
H
L
H
H = HIGH voltage level; L = LOW voltage level; X = don’t care; Z = high-impedance OFF-state.
7. 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
P
tot
Parameter
supply voltage
input clamping current
output clamping current
output current
supply current
ground current
storage temperature
total power dissipation
SO16 package
TSSOP16 package
[1]
[2]
[3]
[2]
[3]
Conditions
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
V
O
=
0.5
V to V
CC
+ 0.5 V
[1]
[1]
Min
0.5
-
-
-
-
70
65
-
-
Max
+7
20
20
35
+70
-
+150
500
500
Unit
V
mA
mA
mA
mA
mA
C
mW
mW
The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
For SO16 packages: above 70
C,
P
tot
derates linearly with 8 mW/K.
For TSSOP16 packages: above 60
C,
P
tot
derates linearly with 5.5 mW/K.
74HC_HCT257_Q100
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2017. All rights reserved
Product data sheet
Rev. 1 — 27 July 2015
4 of 16
Nexperia
74HC257-Q100; 74HCT257-Q100
Quad 2-input multiplexer; 3-state
8. Recommended operating conditions
Table 5.
Symbol
V
CC
V
I
V
O
t/V
Recommended operating conditions
Parameter
supply voltage
input voltage
output voltage
input transition rise and fall V
CC
= 2.0 V
rates
V
CC
= 4.5 V
V
CC
= 6.0 V
T
amb
V
CC
V
I
V
O
t/V
T
amb
ambient temperature
supply voltage
input voltage
output voltage
input transition rise and fall V
CC
= 4.5 V
rates
ambient temperature
74HCT257-Q100
4.5
0
0
-
40
5.0
-
-
1.67
-
5.5
V
CC
V
CC
139
+125
V
V
V
ns
C
Conditions
Min
2.0
0
0
-
-
-
40
Typ
5.0
-
-
-
1.67
-
-
Max
6.0
V
CC
V
CC
625
139
83
+125
Unit
V
V
V
ns
ns
ns
C
74HC257-Q100
9. Static characteristics
Table 6.
Static characteristics
At recommended operating conditions; voltages are referenced to GND (ground = 0 V).
Symbol Parameter
Conditions
Min
74HC257-Q100
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
V
OH
HIGH-level
output voltage
V
I
= V
IH
or V
IL
I
O
=
20 A;
V
CC
= 2.0 V
I
O
=
20 A;
V
CC
= 4.5 V
I
O
=
20 A;
V
CC
= 6.0 V
I
O
=
6.0
mA; V
CC
= 4.5 V
I
O
=
7.8
mA; V
CC
= 6.0 V
1.9
4.4
5.9
3.98
5.48
2.0
4.5
6.0
4.32
5.81
-
-
-
-
-
1.9
4.4
5.9
3.84
5.34
-
-
-
-
-
1.9
4.4
5.9
3.7
5.2
-
-
-
-
-
V
V
V
V
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
1.8
V
V
V
V
V
25
C
Typ
Max
40 C
to
+85
C
Min
Max
40 C
to
+125
C
Min
Max
Unit
1.35 V
74HC_HCT257_Q100
All information provided in this document is subject to legal disclaimers.
©
Nexperia B.V. 2017. All rights reserved
Product data sheet
Rev. 1 — 27 July 2015
5 of 16
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