74HC238-Q100; 74HCT238-Q100
3-to-8 line decoder/demultiplexer
Rev. 2 — 13 June 2018
1
Product data sheet
General description
The 74HC238-Q100; 74HCT238-Q100 decodes three binary weighted address inputs
(A0, A1 and A2) to eight mutually exclusive outputs (Y0 to Y7). The device features three
enable inputs (E1 and E2 and E3). Every output will be LOW unless E1 and E2 are LOW
and E3 is HIGH. This multiple enable function allows easy parallel expansion to a 1-of-32
(5 to 32 lines) decoder with just four '238 ICs and one inverter. The '238 can be used
as an eight output demultiplexer by using one of the active LOW enable inputs as the
data input and the remaining enable inputs as strobes. Inputs include clamp diodes. This
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
• Demultiplexing capability
• Multiple input enable for easy expansion
• Ideal for memory chip select decoding
• Active HIGH mutually exclusive outputs
• Multiple package options
• Complies with JEDEC standard no. 7A
• Input levels:
– For 74HC238: CMOS level
– For 74HCT238: 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 Ω)
3
Ordering information
Table 1. Ordering information
Type number
74HC238D-Q100
74HCT238D-Q100
Package
Temperature range
Name
Description
Version
-40 °C to +125 °C
SO16
plastic small outline package; 16 leads;
body width 3.9 mm
SOT109-1
74HC238-Q100; 74HCT238-Q100
Nexperia
3-to-8 line decoder/demultiplexer
Type number
Package
74HC238PW-Q100
Temperature range
Name
Description
-40 °C to +125 °C
TSSOP16
plastic thin shrink small outline package; 16 leads; SOT403-1
body width 4.4 mm
-40 °C to +125 °C
DHVQFN16 plastic dual in-line compatible thermal
enhanced very thin quad flat package; no leads;
16 terminals; body 2.5 x 3.5 x 0.85 mm
74HCT238PW-Q100
74HC238BQ-Q100
74HCT238BQ-Q100
4
Version
SOT763-1
Functional diagram
15
A0
1
A1
2 3 TO 8
DECODER
3
A2
E1
E2
E3
15
Y0
14
Y1
13
Y2
ENABLE 12
EXITING 11
Y3
10
Y5
9
Y6
7
Y7
Y4
4
14
A0
A1
A2
3
3 TO 8
DECODER
E1
12
11
10
Y1
Y2
Y3
Y4
Y5
Y6
Y7
4
5
6
001aag753
001aag752
Figure 1. Logic symbol
ENABLE
EXITING
7
E3
6
2
9
E2
5
13
1
Y0
Figure 2. Functional diagram
Y0
E1
Y1
E2
Y2
E3
Y3
Y4
Y5
A0
Y6
A1
Y7
A2
001aag754
Figure 3. Logic diagram
74HC_HCT238_Q100
Product data sheet
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Rev. 2 — 13 June 2018
© Nexperia B.V. 2018. All rights reserved.
2 / 17
74HC238-Q100; 74HCT238-Q100
Nexperia
3-to-8 line decoder/demultiplexer
5
Pinning information
5.1 Pinning
1
A0
terminal 1
index area
A1
2
15 Y0
A2
3
14 Y1
E1
4
13 Y2
E2
5
12 Y3
E3
6
11 Y4
Y7
7
10 Y5
GND
8
9
A2
3
14 Y1
E1
4
13 Y2
E2
5
E3
6
Y7
7
12 Y3
GND(1)
11 Y4
10 Y5
9
16 VCC
15 Y0
Y6
1
2
8
A0
A1
GND
74HC238-Q100
74HCT238-Q100
16 VCC
74HC238-Q100
74HCT238-Q100
aaa-006163
Transparent top view
(1) This is not a supply pin. The substrate is attached
to this pad using conductive die attach material. There
is no electrical or mechanical requirement to solder this
pad.However, if it is soldered, the solder land should remain
floating or be connected to GND.
Y6
aaa-006162
Figure 4. Pin configuration SO16 and TSSOP16
Figure 5. Pin configuration DHVQFN16
5.2 Pin description
Table 2. Pin description
Symbol
Pin
Description
A0, A1, A2
1, 2, 3
address input
E1
4
enable input (active LOW)
E2
5
enable input (active LOW)
E3
6
enable input (active HIGH)
Y0, Y1, Y2, Y3, Y4, Y5, Y6, Y7
15, 14, 13, 12, 11, 10, 9, 7
output
GND
8
ground (0 V)
VCC
16
supply voltage
74HC_HCT238_Q100
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 2 — 13 June 2018
© Nexperia B.V. 2018. All rights reserved.
3 / 17
74HC238-Q100; 74HCT238-Q100
Nexperia
3-to-8 line decoder/demultiplexer
6
Functional description
Table 3. Function table
H = HIGH voltage level; L = LOW voltage level; X = don’t care.
Inputs
Outputs
E1
E2
E3
A0
A1
A2
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
H
X
X
X
X
X
L
L
L
L
L
L
L
L
X
H
X
X
X
X
L
L
L
L
L
L
L
L
X
X
L
X
X
X
L
L
L
L
L
L
L
L
L
L
H
L
L
L
H
L
L
L
L
L
L
L
L
L
H
H
L
L
L
H
L
L
L
L
L
L
L
L
H
L
H
L
L
L
H
L
L
L
L
L
L
L
H
H
H
L
L
L
L
H
L
L
L
L
L
L
H
L
L
H
L
L
L
L
H
L
L
L
L
L
H
H
L
H
L
L
L
L
L
H
L
L
L
L
H
L
H
H
L
L
L
L
L
L
H
L
L
L
H
H
H
H
L
L
L
L
L
L
L
H
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
Parameter
VCC
supply voltage
IIK
input clamping current
Conditions
Min
Max
Unit
-0.5
+7
V
VI < -0.5 V or VI > VCC + 0.5 V
[1]
-
±20
mA
[1]
-
±20
mA
-
±25
mA
IOK
output clamping current
VO < -0.5 V or VO > VCC + 0.5 V
IO
output current
-0.5 V < VO < VCC + 0.5 V
ICC
supply current
-
50
mA
IGND
ground current
-50
-
mA
Tstg
storage temperature
-65
+150
°C
-
500
mW
Ptot
total power dissipation
SO16, (T)SSOP16 and DHVQFN16
packages
[2]
[1] The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
[2] For SO16 package: above 70 °C the value of Ptot derates linearly at 8 mW/K.
For TSSOP16 packages: above 60 °C the value of Ptot derates linearly at 5.5 mW/K.
For DHVQFN16 package: above 60 °C the value of Ptot derates linearly at 4.5 mW/K.
74HC_HCT238_Q100
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 2 — 13 June 2018
© Nexperia B.V. 2018. All rights reserved.
4 / 17
74HC238-Q100; 74HCT238-Q100
Nexperia
3-to-8 line decoder/demultiplexer
8
Recommended operating conditions
Table 5. Recommended operating conditions
Voltages are referenced to GND (ground = 0 V).
Symbol Parameter
Conditions
74HC238-Q100
74HCT238-Q100
Unit
Min
Typ
Max
Min
Typ
Max
2.0
5.0
6.0
4.5
5.0
5.5
V
VCC
supply voltage
VI
input voltage
0
-
VCC
0
-
VCC
V
VO
output voltage
0
-
VCC
0
-
VCC
V
Tamb
ambient temperature
-40
-
+125
-40
-
+125
°C
Δt/ΔV
input transition rise
and fall rate
VCC = 2.0 V
-
-
625
-
-
-
ns/V
VCC = 4.5 V
-
1.67
139
-
1.67
139
ns/V
VCC = 6.0 V
-
-
83
-
-
-
ns/V
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 +125 °C Unit
Min
Typ
Max
Min
Max
Min
Max
VCC = 2.0 V
1.5
1.2
-
1.5
-
1.5
-
V
VCC = 4.5 V
3.15
2.4
-
3.15
-
3.15
-
V
VCC = 6.0 V
4.2
3.2
-
4.2
-
4.2
-
V
VCC = 2.0 V
-
0.8
0.5
-
0.5
-
0.5
V
VCC = 4.5 V
-
2.1
1.35
-
1.35
-
1.35
V
VCC = 6.0 V
-
2.8
1.8
-
1.8
-
1.8
V
HIGH-level
VI = VIH or VIL
output voltage
IO = -20 μA; VCC = 2.0 V
1.9
2.0
-
1.9
-
1.9
-
V
IO = -20 μA; VCC = 4.5 V
4.4
4.5
-
4.4
-
4.4
-
V
IO = -20 μA; VCC = 6.0 V
5.9
6.0
-
5.9
-
5.9
-
V
IO = -4.0 mA; VCC = 4.5 V
3.98 4.32
-
3.84
-
3.7
-
V
IO = -5.2 mA; VCC = 6.0 V
5.48 5.81
-
5.34
-
5.2
-
V
74HC238-Q100
VIH
VIL
VOH
VOL
II
HIGH-level
input voltage
LOW-level
input voltage
LOW-level
VI = VIH or VIL
output voltage
IO = 20 μA; VCC = 2.0 V
-
0
0.1
-
0.1
-
0.1
V
IO = 20 μA; VCC = 4.5 V
-
0
0.1
-
0.1
-
0.1
V
IO = 20 μA; VCC = 6.0 V
-
0
0.1
-
0.1
-
0.1
V
IO = 4.0 mA; VCC = 4.5 V
-
0.15
0.26
-
0.33
-
0.4
V
IO = 5.2 mA; VCC = 6.0 V
-
0.16
0.26
-
0.33
-
0.4
V
-
-
±0.1
-
±1.0
-
±1.0
μA
input leakage
current
74HC_HCT238_Q100
Product data sheet
VI = VCC or GND; VCC = 6.0 V
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Rev. 2 — 13 June 2018
© Nexperia B.V. 2018. All rights reserved.
5 / 17
74HC238-Q100; 74HCT238-Q100
Nexperia
3-to-8 line decoder/demultiplexer
Symbol Parameter
Conditions
25 °C
-40 °C to +85 °C -40 °C to +125 °C Unit
Min
Typ
Max
Min
Max
Min
Max
ICC
supply current VI = VCC or GND; IO = 0 A;
VCC = 6.0 V
-
-
8.0
-
80
-
160
μA
CI
input
capacitance
-
3.5
-
-
-
-
-
pF
74HCT238-Q100
VIH
HIGH-level
input voltage
VCC = 4.5 V to 5.5 V
2.0
1.6
-
2.0
-
2.0
-
V
VIL
LOW-level
input voltage
VCC = 4.5 V to 5.5 V
-
1.2
0.8
-
0.8
-
0.8
V
VOH
HIGH-level
VI = VIH or VIL; VCC = 4.5 V
output voltage
IO = -20 μA
4.4
4.5
-
4.4
-
4.4
-
V
3.98 4.32
-
3.84
-
3.7
-
V
IO = -4.0 mA
VOL
LOW-level
VI = VIH or VIL; VCC = 4.5 V
output voltage
IO = 20 μA
IO = 4.0 mA
-
0
0.1
-
0.1
-
0.1
V
-
0.16
0.26
-
0.33
-
0.4
V
II
input leakage
current
VI = VCC or GND; VCC = 5.5 V
-
-
±0.1
-
±1.0
-
±1.0
μA
ICC
supply current VI = VCC or GND; VCC = 5.5 V;
IO = 0 A
-
-
8.0
-
80
-
160
μA
ΔICC
additional
per input pin;
supply current VI = VCC - 2.1 V; IO = 0 A;
other inputs at VCC or GND;
VCC = 4.5 V to 5.5 V
An inputs
-
70
252
-
315
-
343
μA
E1, E2 inputs
-
40
144
-
180
-
196
μA
E3 input
-
145
522
-
653
-
711
μA
-
3.5
-
-
-
-
-
pF
CI
input
capacitance
74HC_HCT238_Q100
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 2 — 13 June 2018
© Nexperia B.V. 2018. All rights reserved.
6 / 17
74HC238-Q100; 74HCT238-Q100
Nexperia
3-to-8 line decoder/demultiplexer
10 Dynamic characteristics
Table 7. Dynamic characteristics
GND = 0 V; test circuit see Figure 8.
Symbol Parameter
Conditions
25 °C
-40 °C to +125 °C
Min
Typ
Max
Max
(85 °C)
Max
Unit
(125 °C)
VCC = 2.0 V
-
47
150
190
225
ns
VCC = 4.5 V
-
17
30
38
45
ns
VCC = 5.0 V; CL = 15 pF
-
14
-
-
-
ns
-
14
26
33
38
ns
VCC = 2.0 V
-
52
160
200
240
ns
VCC = 4.5 V
-
19
32
40
48
ns
VCC = 5.0 V; CL = 15 pF
-
16
-
-
-
ns
-
15
27
34
41
ns
VCC = 2.0 V
-
50
155
195
235
ns
VCC = 4.5 V
-
18
31
39
47
ns
VCC = 5.0 V; CL = 15 pF
-
17
-
-
-
ns
-
14
26
33
40
ns
VCC = 2.0 V
-
19
75
95
110
ns
VCC = 4.5 V
-
7
15
19
22
ns
-
6
13
16
19
ns
-
72
-
-
-
pF
74HC238-Q100
tpd
propagation delay An to Yn; see Figure 6
[1]
VCC = 6.0 V
E3 to Yn; see Figure 6
[1]
VCC = 6.0 V
En to Yn or see Figure 7
[1]
VCC = 6.0 V
tt
transition time
see Figure 6 and Figure 7
[2]
VCC = 6.0 V
CPD
power dissipation
capacitance
74HC_HCT238_Q100
Product data sheet
per package; VI = GND to VCC
[3]
All information provided in this document is subject to legal disclaimers.
Rev. 2 — 13 June 2018
© Nexperia B.V. 2018. All rights reserved.
7 / 17
74HC238-Q100; 74HCT238-Q100
Nexperia
3-to-8 line decoder/demultiplexer
Symbol Parameter
Conditions
25 °C
-40 °C to +125 °C
Min
Typ
Max
Max
(85 °C)
Max
Unit
(125 °C)
-
19
35
44
53
ns
-
18
-
-
-
ns
-
20
37
46
56
ns
-
20
-
-
-
ns
-
20
35
44
53
ns
74HCT238-Q100
tpd
[1]
propagation delay An to Yn; see Figure 6
VCC = 4.5 V
VCC = 5.0 V; CL = 15 pF
[1]
E3 to Yn; see Figure 6
VCC = 4.5 V
VCC = 5.0 V; CL = 15 pF
[1]
En to Yn or see Figure 7
VCC = 4.5 V
VCC = 5.0 V; CL = 15 pF
tt
transition time
VCC = 4.5 V; see Figure 6 and
Figure 7
[2]
CPD
power dissipation
capacitance
per package;
VI = GND to VCC - 1.5 V
[3]
-
21
-
-
-
ns
-
7
15
19
22
ns
-
76
-
-
-
pF
[1] tpd is the same as tPHL and tPLH.
[2] tt is the same as tTHL and tTLH.
[3] CPD is used to determine the dynamic power dissipation (PD in μW):
2
2
PD = CPD x VCC x fi x N + ∑ (CL x VCC x 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;
2
∑ (CL x VCC x fo) = sum of outputs.
10.1 Waveforms and test circuit
An, E3 input
VM
tPHL
VY
Yn output
tTHL
tPLH
VM
VX
tTLH
001aag757
Measurement points are given in Table 8.
VOL and VOH are typical voltage output levels that occur with the output load.
Figure 6. Input (An, E3) to output (Yn) propagation delays and output transition times
74HC_HCT238_Q100
Product data sheet
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Rev. 2 — 13 June 2018
© Nexperia B.V. 2018. All rights reserved.
8 / 17
74HC238-Q100; 74HCT238-Q100
Nexperia
3-to-8 line decoder/demultiplexer
E1, E2 input
VM
tPHL
VY
Yn output
tTHL
tPLH
VM
VX
tTLH
001aag758
Measurement points are given in Table 8.
VOL and VOH are typical voltage output levels that occur with the output load.
Figure 7. Input (E1, E2) to output (Yn) propagation delays and output transition times
Table 8. Measurement points
Input
Output
VM
VM
VX
VY
74HC238-Q100
0.5VCC
0.5VCC
0.1VCC
0.9VCC
74HCT238-Q100
1.3 V
1.3 V
0.1VCC
0.9VCC
Type
74HC_HCT238_Q100
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 2 — 13 June 2018
© Nexperia B.V. 2018. All rights reserved.
9 / 17
74HC238-Q100; 74HCT238-Q100
Nexperia
3-to-8 line decoder/demultiplexer
VI
negative
pulse
tW
90 %
VM
0V
VI
positive
pulse
0V
VM
10 %
tf
tr
tr
tf
90 %
VM
VM
10 %
tW
VCC
G
VI
VCC
VO
DUT
RT
RL
S1
open
CL
001aad983
Test data is given in Table 9.
Definitions for 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 resistance.
S1 = Test selection switch
Figure 8. Test circuit for measuring switching times
Table 9. Test data
Type
Input
Load
S1 position
VI
tr, tf
CL
RL
tPHL, tPLH
74HC238-Q100
VCC
6 ns
15 pF, 50 pF
1 kΩ
open
74HCT238-Q100
3V
6 ns
15 pF, 50 pF
1 kΩ
open
74HC_HCT238_Q100
Product data sheet
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Rev. 2 — 13 June 2018
© Nexperia B.V. 2018. All rights reserved.
10 / 17
74HC238-Q100; 74HCT238-Q100
Nexperia
3-to-8 line decoder/demultiplexer
11 Package outline
SO16: plastic small outline package; 16 leads; body width 3.9 mm
SOT109-1
D
E
A
X
c
y
HE
v M A
Z
16
9
Q
A2
A
(A 3)
A1
pin 1 index
θ
Lp
1
L
8
e
w M
bp
0
2.5
detail X
5 mm
scale
DIMENSIONS (inch dimensions are derived from the original mm dimensions)
UNIT
A
max.
A1
A2
A3
bp
c
D (1)
E (1)
e
HE
L
Lp
Q
v
w
y
Z (1)
mm
1.75
0.25
0.10
1.45
1.25
0.25
0.49
0.36
0.25
0.19
10.0
9.8
4.0
3.8
1.27
6.2
5.8
1.05
1.0
0.4
0.7
0.6
0.25
0.25
0.1
0.7
0.3
inches
0.069
0.010 0.057
0.004 0.049
0.01
0.019 0.0100 0.39
0.014 0.0075 0.38
0.16
0.15
0.05
0.039
0.016
0.028
0.020
0.01
0.01
0.004
0.028
0.012
0.244
0.041
0.228
θ
o
8
o
0
Note
1. Plastic or metal protrusions of 0.15 mm (0.006 inch) maximum per side are not included.
REFERENCES
OUTLINE
VERSION
IEC
JEDEC
SOT109-1
076E07
MS-012
JEITA
EUROPEAN
PROJECTION
ISSUE DATE
99-12-27
03-02-19
Figure 9. Package outline SOT109-1 (SO16)
74HC_HCT238_Q100
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 2 — 13 June 2018
© Nexperia B.V. 2018. All rights reserved.
11 / 17
74HC238-Q100; 74HCT238-Q100
Nexperia
3-to-8 line decoder/demultiplexer
TSSOP16: plastic thin shrink small outline package; 16 leads; body width 4.4 mm
D
SOT403-1
E
A
X
c
y
HE
v M A
Z
9
16
Q
A2
pin 1 index
(A 3 )
A1
A
θ
Lp
1
L
8
detail X
w M
bp
e
0
2.5
5 mm
scale
DIMENSIONS (mm are the original dimensions)
UNIT
A
max.
A1
A2
A3
bp
c
D (1)
E (2)
e
HE
L
Lp
Q
v
w
y
Z (1)
θ
mm
1.1
0.15
0.05
0.95
0.80
0.25
0.30
0.19
0.2
0.1
5.1
4.9
4.5
4.3
0.65
6.6
6.2
1
0.75
0.50
0.4
0.3
0.2
0.13
0.1
0.40
0.06
8o
0o
Notes
1. Plastic or metal protrusions of 0.15 mm maximum per side are not included.
2. Plastic interlead protrusions of 0.25 mm maximum per side are not included.
OUTLINE
VERSION
SOT403-1
REFERENCES
IEC
JEDEC
JEITA
EUROPEAN
PROJECTION
ISSUE DATE
99-12-27
03-02-18
MO-153
Figure 10. Package outline SOT403-1 (TSSOP16)
74HC_HCT238_Q100
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 2 — 13 June 2018
© Nexperia B.V. 2018. All rights reserved.
12 / 17
74HC238-Q100; 74HCT238-Q100
Nexperia
3-to-8 line decoder/demultiplexer
DHVQFN16: plastic dual in-line compatible thermal enhanced very thin quad flat package; no leads;
SOT763-1
16 terminals; body 2.5 x 3.5 x 0.85 mm
B
D
A
A
E
A1
c
detail X
terminal 1
index area
terminal 1
index area
C
e1
e
b
2
y
y1 C
v M C A B
w M C
7
L
1
8
Eh
e
16
9
15
10
Dh
X
0
2.5
5 mm
scale
DIMENSIONS (mm are the original dimensions)
UNIT
A(1)
max.
A1
b
c
D (1)
Dh
E (1)
Eh
e
e1
L
v
w
y
y1
mm
1
0.05
0.00
0.30
0.18
0.2
3.6
3.4
2.15
1.85
2.6
2.4
1.15
0.85
0.5
2.5
0.5
0.3
0.1
0.05
0.05
0.1
Note
1. Plastic or metal protrusions of 0.075 mm maximum per side are not included.
REFERENCES
OUTLINE
VERSION
IEC
JEDEC
JEITA
SOT763-1
---
MO-241
---
EUROPEAN
PROJECTION
ISSUE DATE
02-10-17
03-01-27
Figure 11. Package outline SOT763-1 (DHVQFN16)
74HC_HCT238_Q100
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 2 — 13 June 2018
© Nexperia B.V. 2018. All rights reserved.
13 / 17
74HC238-Q100; 74HCT238-Q100
Nexperia
3-to-8 line decoder/demultiplexer
12 Abbreviations
Table 10. Abbreviations
Acronym
Description
CMOS
Complementary Metal Oxide Semiconductor
DUT
Device Under Test
ESD
ElectroStatic Discharge
HBM
Human Body Model
MM
Machine Model
MIL
Military
TTL
Transistor-Transistor Logic
13 Revision history
Table 11. Revision history
Document ID
Release date
Data sheet status
Change notice Supersedes
74HC_HCT238_Q100 v.2
20180613
Product data sheet
-
Modifications:
• The format of this data sheet has been redesigned to comply with the identity guidelines
of Nexperia.
• Legal texts have been adapted to the new company name where appropriate.
• Figure 3: typo corrected.
74HC_HCT238_Q100 v.1
20130219
74HC_HCT238_Q100
Product data sheet
Product data sheet
-
All information provided in this document is subject to legal disclaimers.
Rev. 2 — 13 June 2018
74HC_HCT238_Q100 v.1
-
© Nexperia B.V. 2018. All rights reserved.
14 / 17
74HC238-Q100; 74HCT238-Q100
Nexperia
3-to-8 line decoder/demultiplexer
14 Legal information
14.1 Data sheet status
Document status
[1][2]
Product status
[3]
Definition
Objective [short] data sheet
Development
This document contains data from the objective specification for product
development.
Preliminary [short] data sheet
Qualification
This document contains data from the preliminary specification.
Product [short] data sheet
Production
This document contains the product specification.
[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.
14.2 Definitions
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.
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.
14.3 Disclaimers
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. 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.
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.
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 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, 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 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.
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.
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.
Suitability for use in automotive applications — This Nexperia product
has been qualified for use in automotive 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 an 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.
Applications — Applications that are described herein for any of these
products are for illustrative purposes only. Nexperia makes no representation
74HC_HCT238_Q100
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 2 — 13 June 2018
© Nexperia B.V. 2018. All rights reserved.
15 / 17
74HC238-Q100; 74HCT238-Q100
Nexperia
3-to-8 line decoder/demultiplexer
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.
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.
74HC_HCT238_Q100
Product data sheet
14.4 Trademarks
Notice: All referenced brands, product names, service names and
trademarks are the property of their respective owners.
All information provided in this document is subject to legal disclaimers.
Rev. 2 — 13 June 2018
© Nexperia B.V. 2018. All rights reserved.
16 / 17
Nexperia
74HC238-Q100; 74HCT238-Q100
3-to-8 line decoder/demultiplexer
Contents
1
2
3
4
5
5.1
5.2
6
7
8
9
10
10.1
11
12
13
14
General description ............................................ 1
Features and benefits .........................................1
Ordering information .......................................... 1
Functional diagram ............................................. 2
Pinning information ............................................ 3
Pinning ............................................................... 3
Pin description ................................................... 3
Functional description ........................................4
Limiting values .................................................... 4
Recommended operating conditions ................ 5
Static characteristics .......................................... 5
Dynamic characteristics .....................................7
Waveforms and test circuit ................................ 8
Package outline .................................................11
Abbreviations .................................................... 14
Revision history ................................................ 14
Legal information .............................................. 15
Please be aware that important notices concerning this document and the product(s)
described herein, have been included in section 'Legal information'.
© Nexperia B.V. 2018.
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: 13 June 2018
Document identifier: 74HC_HCT238_Q100
Mouser Electronics
Authorized Distributor
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