74HC257D-Q100 [NEXPERIA]
Quad 2-input multiplexer; 3-state;
| 型号： | 74HC257D-Q100 |
| 厂家： | 
Nexperia |
| 描述： | Quad 2-input multiplexer; 3-state |
| 文件： | 总16页 (文件大小：1083K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
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 VCC
.
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
Type number
Package
Temperature range Name
Description
Version
74HC257D-Q100
74HCT257D-Q100
74HC257PW-Q100
74HCT257PW-Q100
40 C to +125 C
SO16
plastic small outline package; 16 leads;
body width 3.9 mm
SOT109-1
40 C to +125 C
TSSOP16 plastic thin shrink small outline package; 16 leads; SOT403-1
body width 4.4 mm
74HC257-Q100; 74HCT257-Q100
Nexperia
Quad 2-input multiplexer; 3-state
4. Functional diagram
ꢀ
*ꢀ
ꢀꢄ
(1
ꢀ
6
ꢁ
ꢀ,ꢆ
ꢁ
08;
ꢀ
ꢀ
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ꢃ
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ꢄ
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ꢂ
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ꢁ,ꢀ
ꢄ
ꢅ
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ꢃ<
ꢇ
ꢅ
ꢂ,ꢆ
ꢂ,ꢀ
ꢀꢀ
ꢀꢆ
ꢈ
ꢀꢀ
ꢀꢆ
ꢀꢃ
ꢀꢂ
ꢈ
ꢃ,ꢆ
ꢃ,ꢀ
ꢀꢃ
ꢀꢂ
ꢀꢁ
ꢀꢁ
ꢀꢄ
2(
PJDꢀꢁꢂ
ꢃꢃꢄDDGꢅꢆꢇ
Fig 1. Logic symbol
Fig 2. IEC logic symbol
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ꢂ
ꢄ
ꢅ
ꢀꢀ ꢀꢆ
ꢂ,ꢆ ꢂ,ꢀ
ꢀꢃ ꢀꢂ
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ꢁ,ꢆ ꢁ,ꢀ
ꢀ
6
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ꢀ<
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ꢈ
ꢃ<
ꢀꢁ
PJUꢈꢀꢃ
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
74HC257-Q100; 74HCT257-Q100
Nexperia
Quad 2-input multiplexer; 3-state
ꢀ,ꢆ
ꢀ,ꢀ
ꢁ,ꢆ
ꢁ,ꢀ
ꢀ<
ꢁ<
ꢂ<
ꢃ<
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ꢂ,ꢀ
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6
ꢃꢃꢄDDGꢅꢆꢀ
Fig 4. Logic diagram
5. Pinning information
5.1 Pinning
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ꢀꢁ+&7ꢂꢃꢀꢄ4ꢅꢆꢆ
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ꢂ
ꢃ
ꢄ
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ꢋ
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ꢀꢄ
ꢀꢃ
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ꢀꢁ
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6
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9
&&
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ꢀ,ꢀ
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ꢁ,ꢆ
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ꢂ,ꢆ
ꢂ,ꢀ
ꢂ<
ꢁ<
*1'
DDDꢉꢃꢄꢊꢈꢁꢁ
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
74HC257-Q100; 74HCT257-Q100
Nexperia
Quad 2-input multiplexer; 3-state
5.2 Pin description
Table 2.
Symbol
S
Pin description
Pin
Description
1
common data select input
1I0 to 4I0
1I1 to 4I1
1Y to 4Y
GND
2, 5, 11, 14
3, 6, 10, 13
data input from source 0
data input from source 1
3-state multiplexer output
ground (0 V)
4, 7, 9, 12
8
OE
15
16
3-state output enable input (active LOW)
supply voltage
VCC
6. Functional description
6.1 Function table
Table 3.
Function table[1]
Control
Input
nl0
X
Output
OE
H
L
S
X
H
H
L
nl1
X
nY
Z
X
L
L
L
X
H
X
H
L
L
L
L
L
H
X
H
[1] 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
VCC
IIK
Parameter
Conditions
Min
Max
+7
Unit
V
supply voltage
0.5
[1]
[1]
input clamping current
output clamping current
output current
VI < 0.5 V or VI > VCC + 0.5 V
VO < 0.5 V or VO > VCC + 0.5 V
VO = 0.5 V to VCC + 0.5 V
-
20
20
35
+70
-
mA
mA
mA
mA
mA
C
IOK
-
IO
-
ICC
supply current
-
IGND
Tstg
Ptot
ground current
70
storage temperature
total power dissipation
65
+150
500
500
[2]
[3]
SO16 package
-
-
mW
mW
TSSOP16 package
[1] The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
[2] For SO16 packages: above 70 C, Ptot derates linearly with 8 mW/K.
[3] For TSSOP16 packages: above 60 C, Ptot 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
74HC257-Q100; 74HCT257-Q100
Nexperia
Quad 2-input multiplexer; 3-state
8. Recommended operating conditions
Table 5.
Recommended operating conditions
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
74HC257-Q100
VCC
VI
supply voltage
2.0
5.0
6.0
V
input voltage
0
-
VCC
VCC
625
139
83
V
VO
output voltage
0
-
V
t/V
input transition rise and fall VCC = 2.0 V
rates
-
-
ns
ns
ns
C
VCC = 4.5 V
-
1.67
VCC = 6.0 V
-
-
-
Tamb
ambient temperature
40
+125
74HCT257-Q100
VCC
VI
supply voltage
4.5
0
5.0
5.5
V
input voltage
-
VCC
VCC
139
V
VO
output voltage
0
-
V
t/V
input transition rise and fall VCC = 4.5 V
rates
-
1.67
ns
Tamb
ambient temperature
40
-
+125
C
9. Static characteristics
Table 6.
Static characteristics
At recommended operating conditions; voltages are referenced to GND (ground = 0 V).
Symbol Parameter
Conditions
25 C
40 C to
+85 C
40 C to Unit
+125 C
Min Typ Max Min Max Min Max
74HC257-Q100
VIH
HIGH-level
input voltage
VCC = 2.0 V
1.5
1.2
-
-
1.5
-
-
1.5
-
-
V
V
V
V
V
V
VCC = 4.5 V
3.15 2.4
3.15
3.15
VCC = 6.0 V
4.2
3.2
0.8
-
4.2
-
4.2
-
VIL
LOW-level
input voltage
VCC = 2.0 V
-
-
-
0.5
-
-
-
0.5
1.35
1.8
-
-
-
0.5
1.35
1.8
VCC = 4.5 V
2.1 1.35
VCC = 6.0 V
2.8
1.8
VOH
HIGH-level
VI = VIH or VIL
output voltage
IO = 20 A; VCC = 2.0 V
IO = 20 A; VCC = 4.5 V
IO = 20 A; VCC = 6.0 V
IO = 6.0 mA; VCC = 4.5 V
IO = 7.8 mA; VCC = 6.0 V
1.9
4.4
5.9
2.0
4.5
6.0
-
-
-
-
-
1.9
4.4
-
-
-
-
-
1.9
4.4
5.9
3.7
5.2
-
-
-
-
-
V
V
V
V
V
5.9
3.98 4.32
5.48 5.81
3.84
5.34
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
74HC257-Q100; 74HCT257-Q100
Nexperia
Quad 2-input multiplexer; 3-state
Table 6.
Static characteristics …continued
At recommended operating conditions; voltages are referenced to GND (ground = 0 V).
Symbol Parameter
Conditions
25 C
40 C to
+85 C
40 C to Unit
+125 C
Min Typ Max Min Max Min Max
VOL
LOW-level
VI = VIH or VIL
output voltage
IO = 20 A; VCC = 2.0 V
IO = 20 A; VCC = 4.5 V
IO = 20 A; VCC = 6.0 V
IO = 6.0 mA; VCC = 4.5 V
IO = 7.8 mA; VCC = 6.0 V
-
-
-
-
-
-
-
0
0
0
0.1
0.1
0.1
-
-
-
-
-
-
-
0.1
0.1
-
-
-
-
-
-
-
0.1
0.1
0.1
0.4
0.4
V
V
V
V
V
0.1
0.15 0.26
0.16 0.26
0.33
0.33
1.0
5.0
II
input leakage current VI = VCC or GND; VCC = 6.0 V
-
-
0.1
0.5
1.0 A
10.0 A
IOZ
OFF-state
output current
VI = VIH or VIL;
VO = VCC or GND;
VCC = 6.0 V
ICC
Ci
supply current
VI = VCC or GND; IO = 0 A;
VCC = 6.0 V
-
-
-
8.0
-
-
-
80
-
-
-
160 A
input capacitance
3.5
-
pF
74HCT257-Q100
VIH
HIGH-level
input voltage
VCC = 4.5 V to 5.5 V
VCC = 4.5 V to 5.5 V
2.0
-
1.6
1.2
-
2.0
-
-
2.0
-
-
V
V
VIL
LOW-level
0.8
0.8
0.8
input voltage
VOH
HIGH-level
output voltage
VI = VIH or VIL; VCC = 4.5 V
IO = 20 A
4.4
4.5
-
-
4.4
-
-
4.4
3.7
-
-
V
V
IO = 6 mA
3.98 4.32
3.84
VOL
LOW-level
output voltage
VI = VIH or VIL; VCC = 4.5 V
IO = 20 A
-
-
-
-
0
0.1
-
-
-
-
0.33
0.33
1.0
5.0
-
-
-
-
0.4
0.4
V
V
IO = 6.0 mA
0.15 0.26
II
input leakage current VI = VCC or GND; VCC = 5.5 V
-
-
0.1
0.5
1.0 A
10 A
IOZ
OFF-state
output current
VI = VIH or VIL; VCC = 5.5 V;
VO = VCC or GND per input
pin; other inputs at VCC or
GND; IO = 0 A
ICC
supply current
VI = VCC or GND; IO = 0 A;
-
-
8.0
-
80
-
160 A
VCC = 5.5 V
ICC
additional supply
current
VI = VCC 2.1 V; other inputs at VCC or GND; VCC = 4.5 V to 5.5 V; IO = 0 A
per input pin; nI0, nI1 inputs
per input pin; OE input
per input pin; S input
-
-
-
-
40
144
-
-
-
-
180
608
315
-
-
-
-
-
196 A
662 A
343 A
135 486
70
252
-
CI
input capacitance
3.5
-
pF
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
6 of 16
74HC257-Q100; 74HCT257-Q100
Nexperia
Quad 2-input multiplexer; 3-state
10. Dynamic characteristics
Table 7.
Dynamic characteristics
Voltages are referenced to GND (ground = 0 V); For test circuit, see Figure 8.
Symbol Parameter
Conditions
25 C
40 C to 40 C to Unit
+85 C
+125 C
Typ
Max
Max
Max
74HC257-Q100
[1]
tpd
propagation
delay
nl0 to nY or nl1 to nY; see Figure 6
VCC = 2.0 V
36
13
11
10
110
22
-
140
28
-
165
33
-
ns
ns
ns
ns
VCC = 4.5 V
VCC = 5.0 V; CL = 15 pF
VCC = 6.0 V
19
24
28
S to nY; see Figure 6
VCC = 2.0 V
47
17
14
14
150
30
-
190
38
-
225
45
-
ns
ns
ns
ns
VCC = 4.5 V
VCC = 5.0 V; CL = 15 pF
VCC = 6.0 V
26
33
38
[2]
[3]
[4]
ten
tdis
tt
enable time
disable time
transition time
OE to nY; see Figure 7
VCC = 2.0 V
33
12
10
150
30
190
38
225
45
ns
ns
ns
VCC = 4.5 V
VCC = 6.0 V
26
33
38
OE to nY; see Figure 7
VCC = 2.0 V
41
15
12
150
30
190
38
225
45
ns
ns
ns
VCC = 4.5 V
VCC = 6.0 V
26
33
38
see Figure 6
VCC = 2.0 V
14
5
60
12
10
-
75
15
13
-
90
18
15
-
ns
ns
ns
pF
VCC = 4.5 V
VCC = 6.0 V
4
[5]
[1]
CPD
power dissipation per multiplexer; VI = GND to VCC
capacitance
45
74HCT257-Q100
tpd
propagation
delay
nl0 to nY or nl1 to nY; see Figure 6
VCC = 4.5 V
16
13
30
-
38
-
45
-
ns
ns
VCC = 5.0 V; CL = 15 pF
S to nY; see Figure 6
VCC = 4.5 V
20
17
15
16
5
35
-
44
-
53
-
ns
ns
ns
ns
ns
VCC = 5.0 V; CL = 15 pF
OE to nY; VCC = 4.5 V; see Figure 7
OE to nY; VCC = 4.5 V; see Figure 7
VCC = 4.5 V; see Figure 6
[2]
[3]
[4]
ten
tdis
tt
enable time
disable time
transition time
30
30
12
38
38
15
45
45
18
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
7 of 16
74HC257-Q100; 74HCT257-Q100
Nexperia
Quad 2-input multiplexer; 3-state
Table 7.
Dynamic characteristics …continued
Voltages are referenced to GND (ground = 0 V); For test circuit, see Figure 8.
Symbol Parameter Conditions
25 C
40 C to 40 C to Unit
+85 C
Max
-
+125 C
Typ
45
Max
Max
[5]
CPD
power dissipation per multiplexer; VI = GND to VCC 1.5 V
-
-
pF
capacitance
[1] tpd is the same as tPHL, tPLH
[2] en is the same as tPZH, tPZL
[3] tdis is the same as tPHZ, tPLZ
[4] tt is the same as tTHL, tTLH
[5] PD is used to determine the dynamic power dissipation (PD in W).
.
t
.
.
.
C
PD = CPD VCC2 fi N + (CL VCC2 fo) where:
fi = input frequency in MHz;
fo = output frequency in MHz;
CL = output load capacitance in pF;
VCC = supply voltage in V;
N = number of inputs switching;
(CL VCC2 fo) = sum of outputs.
11. Waveforms
9
,
LQSXWꢊ
6ꢍꢊQ,ꢆꢍꢊQ,ꢀ
9
9
0
0
*1'
W
W
3+/
3/+
9
2+
ꢈꢆꢊꢌ
RXWSXWꢊ
Q<
9
9
0
0
ꢀꢆꢊꢌ
9
2/
W
W
7/+
7+/
ꢃꢃꢄDDGꢅꢇꢇ
Measurement points are given in Table 8.
VOL and VOH are typical voltage output levels that occur with the output load.
Fig 6. Propagation delays input (S, nI0, nI1) to output (nY) and output (nY) transition times
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
8 of 16
74HC257-Q100; 74HCT257-Q100
Nexperia
Quad 2-input multiplexer; 3-state
W
W
I
U
9
,
ꢈꢆꢊꢌ
2(ꢊLQSXW
RXWSXWꢊ
9
0
ꢀꢆꢊꢌ
*1'
W
W
3=/
3/=
9
&&
/2:ꢉWRꢉ2))ꢊ
2))ꢉWRꢉ/2:
9
0
ꢀꢆꢊꢌ
9
2/
W
W
3+=
3=+
9
2+
ꢈꢆꢊꢌ
RXWSXWꢊ
+,*+ꢉWRꢉ2))ꢊ
2))ꢉWRꢉ+,*+
9
0
*1'
RXWSXWVꢊ
RXWSXWVꢊ
HQDEOHG
RXWSXWVꢊ
GLVDEOHG
HQDEOHG
ꢃꢃꢄDDFꢅꢇꢊ
Measurement points are given in Table 8.
VOL and VOH are typical voltage output levels that occur with the output load.
Fig 7. 3-state output enable and disable times
Table 8.
Type
Measurement points
Input
VM
Output
VM
74HC257-Q100
74HCT257-Q100
0.5VCC
1.3 V
0.5VCC
1.3 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
9 of 16
74HC257-Q100; 74HCT257-Q100
Nexperia
Quad 2-input multiplexer; 3-state
W
:
9
,
ꢈꢆꢊꢌ
QHJDWLYHꢊ
SXOVH
9
9
9
0
0
0
ꢀꢆꢊꢌ
ꢆꢊ9
W
W
U
I
W
W
U
I
9
,
ꢈꢆꢊꢌ
SRVLWLYHꢊ
SXOVH
9
0
ꢀꢆꢊꢌ
ꢆꢊ9
W
:
9
9
&&
&&
9
,
9
2
ꢊ
5
/
6ꢀ
*
RSHQ
'87
5
7
&
/
ꢃꢃꢄDDGꢊꢀꢁ
Measurement points are given in Table 8 and test data is given in Table 9.
Definitions test circuit:
RT = Termination resistance should be equal to output impedance Zo of the pulse generator.
CL = Load capacitance including jig and probe capacitance.
RL = Load resistor.
Fig 8. Test circuit for measuring switching times
Table 9.
Type
Test data
Input
Load
CL
Switch position
VI
tr, tf
6 ns
6 ns
RL
tPHL, tPLH
open
tPZH, tPHZ
tPZL, tPLZ
VCC
74HC257-Q100
VCC
50 pF
50 pF
1 k
1 k
GND
GND
74HCT257-Q100 3 V
open
VCC
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
10 of 16
74HC257-Q100; 74HCT257-Q100
Nexperia
Quad 2-input multiplexer; 3-state
12. Package outline
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Yꢊ 0ꢊ
$ꢊ
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Fig 9. Package outline SOT109-1 (SO16)
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
11 of 16
74HC257-Q100; 74HCT257-Q100
Nexperia
Quad 2-input multiplexer; 3-state
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Fig 10. Package outline SOT403-1 (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
12 of 16
74HC257-Q100; 74HCT257-Q100
Nexperia
Quad 2-input multiplexer; 3-state
13. Abbreviations
Table 10. Abbreviations
Acronym
CMOS
DUT
Description
Complementary Metal Oxide Semiconductor
Device Under Test
ESD
ElectroStatic Discharge
Human Body Model
HBM
MM
Machine Model
TTL
Transistor-Transistor Logic
Military
MIL
14. Revision history
Table 11. Revision history
Document ID
Release date
20150727
Data sheet status
Change notice Supersedes
74HC_HCT257_Q100 v.1
Product data sheet
-
-
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
13 of 16
74HC257-Q100; 74HCT257-Q100
Nexperia
Quad 2-input multiplexer; 3-state
15. Legal information
15.1 Data sheet status
Document status[1][2]
Product status[3]
Development
Definition
Objective [short] data sheet
This document contains data from the objective specification for product development.
This document contains data from the preliminary specification.
This document contains the product specification.
Preliminary [short] data sheet Qualification
Product [short] data sheet Production
[1]
[2]
[3]
Please consult the most recently issued document before initiating or completing a design.
The term ‘short data sheet’ is explained in section “Definitions”.
The product status of device(s) described in this document may have changed since this document was published and may differ in case of multiple devices. The latest product status
information is available on the Internet at URL http://www.nexperia.com.
Suitability for use in automotive applications — This Nexperia
product has been qualified for use in automotive
15.2 Definitions
applications. Unless otherwise agreed in writing, the product is not designed,
authorized or warranted to be suitable for use in life support, life-critical or
safety-critical systems or equipment, nor in applications where failure or
malfunction of a Nexperia product can reasonably be expected
to result in personal injury, death or severe property or environmental
damage. Nexperia and its suppliers accept no liability for
inclusion and/or use of Nexperia products in such equipment or
applications and therefore such inclusion and/or use is at the customer's own
risk.
Draft — The document is a draft version only. The content is still under
internal review and subject to formal approval, which may result in
modifications or additions. Nexperia does not give any
representations or warranties as to the accuracy or completeness of
information included herein and shall have no liability for the consequences of
use of such information.
Short data sheet — A short data sheet is an extract from a full data sheet
with the same product type number(s) and title. A short data sheet is intended
for quick reference only and should not be relied upon to contain detailed and
full information. For detailed and full information see the relevant full data
sheet, which is available on request via the local Nexperia sales
office. In case of any inconsistency or conflict with the short data sheet, the
full data sheet shall prevail.
Applications — Applications that are described herein for any of these
products are for illustrative purposes only. Nexperia makes no
representation or warranty that such applications will be suitable for the
specified use without further testing or modification.
Customers are responsible for the design and operation of their applications
and products using Nexperia products, and Nexperia
Product specification — The information and data provided in a Product
data sheet shall define the specification of the product as agreed between
Nexperia and its customer, unless Nexperia and
customer have explicitly agreed otherwise in writing. In no event however,
shall an agreement be valid in which the Nexperia product is
deemed to offer functions and qualities beyond those described in the
Product data sheet.
accepts no liability for any assistance with applications or customer product
design. It is customer’s sole responsibility to determine whether the Nexperia
product is suitable and fit for the customer’s applications and
products planned, as well as for the planned application and use of
customer’s third party customer(s). Customers should provide appropriate
design and operating safeguards to minimize the risks associated with their
applications and products.
Nexperia does not accept any liability related to any default,
15.3 Disclaimers
damage, costs or problem which is based on any weakness or default in the
customer’s applications or products, or the application or use by customer’s
third party customer(s). Customer is responsible for doing all necessary
testing for the customer’s applications and products using Nexperia
products in order to avoid a default of the applications and
Limited warranty and liability — Information in this document is believed to
be accurate and reliable. However, Nexperia does not give any
representations or warranties, expressed or implied, as to the accuracy or
completeness of such information and shall have no liability for the
consequences of use of such information. Nexperia takes no
responsibility for the content in this document if provided by an information
source outside of Nexperia.
the products or of the application or use by customer’s third party
customer(s). Nexperia does not accept any liability in this respect.
Limiting values — Stress above one or more limiting values (as defined in
the Absolute Maximum Ratings System of IEC 60134) will cause permanent
damage to the device. Limiting values are stress ratings only and (proper)
operation of the device at these or any other conditions above those given in
the Recommended operating conditions section (if present) or the
Characteristics sections of this document is not warranted. Constant or
repeated exposure to limiting values will permanently and irreversibly affect
the quality and reliability of the device.
In no event shall Nexperia be liable for any indirect, incidental,
punitive, special or consequential damages (including - without limitation - lost
profits, lost savings, business interruption, costs related to the removal or
replacement of any products or rework charges) whether or not such
damages are based on tort (including negligence), warranty, breach of
contract or any other legal theory.
Notwithstanding any damages that customer might incur for any reason
whatsoever, Nexperia’s aggregate and cumulative liability towards
customer for the products described herein shall be limited in accordance
with the Terms and conditions of commercial sale of Nexperia.
Terms and conditions of commercial sale — Nexperia
products are sold subject to the general terms and conditions of commercial
sale, as published at http://www.nexperia.com/profile/terms, unless otherwise
agreed in a valid written individual agreement. In case an individual
agreement is concluded only the terms and conditions of the respective
agreement shall apply. Nexperia hereby expressly objects to
applying the customer’s general terms and conditions with regard to the
purchase of Nexperia products by customer.
Right to make changes — Nexperia reserves the right to make
changes to information published in this document, including without
limitation specifications and product descriptions, at any time and without
notice. This document supersedes and replaces all information supplied prior
to the publication hereof.
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
14 of 16
74HC257-Q100; 74HCT257-Q100
Nexperia
Quad 2-input multiplexer; 3-state
No offer to sell or license — Nothing in this document may be interpreted or
construed as an offer to sell products that is open for acceptance or the grant,
conveyance or implication of any license under any copyrights, patents or
other industrial or intellectual property rights.
Translations — A non-English (translated) version of a document is for
reference only. The English version shall prevail in case of any discrepancy
between the translated and English versions.
Export control — This document as well as the item(s) described herein
may be subject to export control regulations. Export might require a prior
authorization from competent authorities.
15.4 Trademarks
Notice: All referenced brands, product names, service names and trademarks
are the property of their respective owners.
16. Contact information
For more information, please visit: http://www.nexperia.com
For sales office addresses, please send an email to: salesaddresses@nexperia.com
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
15 of 16
74HC257-Q100; 74HCT257-Q100
Nexperia
Quad 2-input multiplexer; 3-state
17. Contents
1
2
3
4
General description. . . . . . . . . . . . . . . . . . . . . . 1
Features and benefits . . . . . . . . . . . . . . . . . . . . 1
Ordering information. . . . . . . . . . . . . . . . . . . . . 1
Functional diagram . . . . . . . . . . . . . . . . . . . . . . 2
5
5.1
5.2
Pinning information. . . . . . . . . . . . . . . . . . . . . . 3
Pinning . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Pin description . . . . . . . . . . . . . . . . . . . . . . . . . 4
6
6.1
7
Functional description . . . . . . . . . . . . . . . . . . . 4
Function table . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Limiting values. . . . . . . . . . . . . . . . . . . . . . . . . . 4
Recommended operating conditions. . . . . . . . 5
Static characteristics. . . . . . . . . . . . . . . . . . . . . 5
Dynamic characteristics . . . . . . . . . . . . . . . . . . 7
Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Package outline . . . . . . . . . . . . . . . . . . . . . . . . 11
Abbreviations. . . . . . . . . . . . . . . . . . . . . . . . . . 13
Revision history. . . . . . . . . . . . . . . . . . . . . . . . 13
8
9
10
11
12
13
14
15
Legal information. . . . . . . . . . . . . . . . . . . . . . . 14
Data sheet status . . . . . . . . . . . . . . . . . . . . . . 14
Definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Disclaimers. . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Trademarks. . . . . . . . . . . . . . . . . . . . . . . . . . . 15
15.1
15.2
15.3
15.4
16
17
Contact information. . . . . . . . . . . . . . . . . . . . . 15
Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
© Nexperia B.V. 2017. All rights reserved
For more information, please visit: http://www.nexperia.com
For sales office addresses, please send an email to: salesaddresses@nexperia.com
Date of release: 27 July 2015
相关型号：
74HC257D-T
IC HC/UH SERIES, QUAD 2 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, PDSO16, 3.90 MM, PLASTIC, MS-012, SOT-109-1, SO-16, Multiplexer/Demultiplexer
NXP
74HC257DB-T
IC HC/UH SERIES, QUAD 2 LINE TO 1 LINE MULTIPLEXER, TRUE OUTPUT, PDSO16, 5.30 MM, PLASTIC, MO-150, SOT-338-1, SSOP-16, Multiplexer/Demultiplexer
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