74HC238PW [NEXPERIA]
3-to-8 line decoder/demultiplexerProduction;型号: | 74HC238PW |
厂家: | Nexperia |
描述: | 3-to-8 line decoder/demultiplexerProduction |
文件: | 总15页 (文件大小:262K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
74HC238; 74HCT238
3-to-8 line decoder/demultiplexer
Rev. 7 — 2 September 2021
Product data sheet
1. General description
The 74HC238; 74HCT238 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
.
2. Features and benefits
•
•
•
•
•
•
•
•
Wide supply voltage range from 2.0 to 6.0 V
CMOS low power dissipation
High noise immunity
Demultiplexing capability
Multiple input enable for easy expansion
Ideal for memory chip select decoding
Active HIGH mutually exclusive outputs
Input levels:
•
•
For 74HC238: CMOS level
For 74HCT238: TTL level
•
Complies with JEDEC standards
•
•
JESD8C (2.7 V to 3.6 V)
JESD7A (2.0 V to 6.0 V)
•
•
Latch-up performance exceeds 100 mA per JESD 78 Class II Level B
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
3. Ordering information
Table 1. Ordering information
Type number
Package
Temperature range Name
Description
Version
74HC238D
-40 °C to +125 °C
-40 °C to +125 °C
-40 °C to +125 °C
SO16
plastic small outline package; 16 leads;
body width 3.9 mm
SOT109-1
74HCT238D
74HC238PW
74HCT238PW
74HC238BQ
74HCT238BQ
TSSOP16
plastic thin shrink small outline package; 16 leads;
body width 4.4 mm
SOT403-1
SOT763-1
DHVQFN16 plastic dual in-line compatible thermal enhanced
very thin quad flat package; no leads; 16 terminals;
body 2.5 × 3.5 × 0.85 mm
Nexperia
74HC238; 74HCT238
3-to-8 line decoder/demultiplexer
4. Functional diagram
15
Y0
14
Y1
15
14
13
12
11
10
9
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
13
Y2
12
1
2
3
A0
A1
A2
Y3
3 TO 8
DECODER
ENABLE
EXITING
A0
A1
A2
1
2
3
11
10
9
Y4
Y5
Y6
Y7
3 TO 8
DECODER
ENABLE
EXITING
7
7
4
5
6
E1
E2
E3
4
5
6
E1
E2
E3
001aag752
001aag753
Fig. 1. Logic symbol
Fig. 2. Functional diagram
Y0
E1
E2
E3
Y1
Y2
Y3
Y4
Y5
Y6
A0
A1
A2
Y7
001aag754
Fig. 3. Logic diagram
©
74HC_HCT238
All information provided in this document is subject to legal disclaimers.
Nexperia B.V. 2021. All rights reserved
Product data sheet
Rev. 7 — 2 September 2021
2 / 15
Nexperia
74HC238; 74HCT238
3-to-8 line decoder/demultiplexer
5. Pinning information
5.1. Pinning
74HC238
74HCT238
terminal 1
index area
74HC238
74HCT238
2
3
4
5
6
7
15
14
13
12
11
10
A1
Y0
Y1
Y2
Y3
Y4
Y5
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
A0
A1
V
CC
A2
E1
E2
E3
Y7
Y0
Y1
Y2
Y3
Y4
Y5
Y6
A2
(1)
GND
E1
E2
001aag756
E3
Transparent top view
Y7
(1) This is not a ground pin. There is no electrical or
mechanical requirement to solder the pad. In case
soldered, the solder land should remain floating or
connected to GND.
GND
001aag755
Fig. 4. Pin configuration SOT109-1 (SO16) and
SOT403-1 (TSSOP16)
Fig. 5. Pin configuration SOT763-1 (DHVQFN16)
5.2. Pin description
Table 2. Pin description
Symbol
Pin
1, 2, 3
4, 5
6
Description
A0, A1, A2
address input
E1, E2
enable input (active LOW)
enable input (active HIGH)
E3
Y0, Y1, Y2, Y3, Y4, Y5, Y6, Y7
15, 14, 13, 12, 11, 10, 9, 7
output
GND
VCC
8
ground (0 V)
supply voltage
16
©
74HC_HCT238
All information provided in this document is subject to legal disclaimers.
Nexperia B.V. 2021. All rights reserved
Product data sheet
Rev. 7 — 2 September 2021
3 / 15
Nexperia
74HC238; 74HCT238
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
H
X
X
L
E2
X
H
X
L
E3
X
A0
X
X
X
L
A1
X
X
X
L
A2
X
X
X
L
Y0
L
Y1
L
Y2
L
Y3
L
Y4
L
Y5
L
Y6
L
Y7
L
X
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
H
H
H
H
H
H
H
H
H
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
L
L
L
H
L
L
L
L
L
L
L
H
H
H
H
L
L
L
H
L
L
L
L
L
L
H
L
L
L
L
L
L
H
L
L
L
L
L
H
H
L
L
L
L
L
H
L
L
L
L
H
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
Conditions
Min
Max
+7
Unit
V
VCC
IIK
supply voltage
-0.5
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
-0.5 V < VO < VCC + 0.5 V
[1]
[1]
-
±20
±20
±25
50
mA
mA
mA
mA
mA
°C
IOK
IO
-
-
ICC
IGND
Tstg
Ptot
supply current
-
ground current
-50
-65
-
-
storage temperature
total power dissipation
+150
500
[2]
mW
[1] The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
[2] For SOT109-1 (SO16) package: Ptot derates linearly with 12.4 mW/K above 110 °C.
For SOT403-1 (TSSOP16) package: Ptot derates linearly with 8.5 mW/K above 91 °C.
For SOT763-1 (DHVQFN16) package: Ptot derates linearly with 11.2 mW/K above 106 °C.
©
74HC_HCT238
All information provided in this document is subject to legal disclaimers.
Nexperia B.V. 2021. All rights reserved
Product data sheet
Rev. 7 — 2 September 2021
4 / 15
Nexperia
74HC238; 74HCT238
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
74HCT238
Unit
Min
Typ
Max
6.0
Min
Typ
Max
5.5
VCC
VI
supply voltage
2.0
5.0
4.5
5.0
V
V
V
input voltage
0
0
-
VCC
VCC
+125
625
139
83
0
0
-
VCC
VCC
VO
output voltage
-
-
Tamb
Δt/ΔV
ambient temperature
input transition rise and fall rate
-40
-
-
-40
-
-
+125 °C
VCC = 2.0 V
VCC = 4.5 V
VCC = 6.0 V
-
1.67
-
-
1.67
-
-
ns/V
-
-
139 ns/V
-
-
-
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
74HC238
VIH
HIGH-level
input voltage
VCC = 2.0 V
VCC = 4.5 V
VCC = 6.0 V
VCC = 2.0 V
VCC = 4.5 V
VCC = 6.0 V
VI = VIH or VIL
1.5
1.2
2.4
3.2
0.8
2.1
2.8
-
-
1.5
-
-
1.5
-
-
V
V
V
V
V
V
3.15
3.15
3.15
4.2
-
4.2
-
4.2
-
VIL
LOW-level
input voltage
-
-
-
0.5
1.35
1.8
-
-
-
0.5
1.35
1.8
-
-
-
0.5
1.35
1.8
VOH
HIGH-level
output voltage
IO = -20 μA; VCC = 2.0 V
1.9
4.4
2.0
4.5
-
-
-
-
-
1.9
4.4
-
-
-
-
-
1.9
4.4
5.9
3.7
5.2
-
-
-
-
-
V
V
V
V
V
IO = -20 μA; VCC = 4.5 V
IO = -20 μA; VCC = 6.0 V
IO = -4.0 mA; VCC = 4.5 V
IO = -5.2 mA; VCC = 6.0 V
5.9
6.0
5.9
3.98
5.48
4.32
5.81
3.84
5.34
VOL
LOW-level
VI = VIH or VIL
output voltage
IO = 20 μA; VCC = 2.0 V
IO = 20 μA; VCC = 4.5 V
IO = 20 μA; VCC = 6.0 V
IO = 4.0 mA; VCC = 4.5 V
IO = 5.2 mA; VCC = 6.0 V
-
-
-
-
-
-
0
0
0.1
0.1
-
-
-
-
-
-
0.1
0.1
-
-
-
-
-
-
0.1
0.1
0.1
0.4
0.4
V
V
V
V
V
0
0.1
0.1
0.15
0.16
-
0.26
0.26
±0.1
0.33
0.33
±1.0
II
input leakage VI = VCC or GND; VCC = 6.0 V
current
±1.0 μA
ICC
CI
supply current VI = VCC or GND; IO = 0 A;
VCC = 6.0 V
-
-
-
8.0
-
-
-
80
-
-
-
160 μA
input
3.5
-
pF
capacitance
©
74HC_HCT238
All information provided in this document is subject to legal disclaimers.
Nexperia B.V. 2021. All rights reserved
Product data sheet
Rev. 7 — 2 September 2021
5 / 15
Nexperia
74HC238; 74HCT238
3-to-8 line decoder/demultiplexer
Symbol Parameter
Conditions
25 °C
Typ
-40 °C to
+85 °C
-40 °C to
+125 °C
Unit
Min
Max
Min
Max
Min
Max
74HCT238
VIH
VIL
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
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 μA
4.4
4.5
-
-
4.4
-
-
4.4
3.7
-
-
V
V
IO = -4.0 mA
3.98
4.32
3.84
VOL
LOW-level
output voltage
VI = VIH or VIL; VCC = 4.5 V
IO = 20 μA
-
-
-
0
0.16
-
0.1
-
-
-
0.1
-
-
-
0.1
0.4
V
V
IO = 4.0 mA
0.26
±0.1
0.33
±1.0
II
input leakage VI = VCC or GND; VCC = 5.5 V
current
±1.0 μA
ICC
ΔICC
supply current VI = VCC or GND; VCC = 5.5 V;
IO = 0 A
-
-
8.0
-
80
-
160 μA
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
40
252
144
522
-
-
-
-
-
315
180
653
-
-
-
-
-
343 μA
196 μA
711 μA
E1, E2 inputs
E3 input
145
3.5
CI
input
-
pF
capacitance
©
74HC_HCT238
All information provided in this document is subject to legal disclaimers.
Nexperia B.V. 2021. All rights reserved
Product data sheet
Rev. 7 — 2 September 2021
6 / 15
Nexperia
74HC238; 74HCT238
3-to-8 line decoder/demultiplexer
10. Dynamic characteristics
Table 7. Dynamic characteristics
GND = 0 V; test circuit see Fig. 8.
Symbol Parameter
Conditions
25 °C
Typ
-40 °C to
+85 °C
-40 °C to
+125 °C
Unit
Min
Max
Min
Max
Min
Max
74HC238
tpd
propagation
delay
An to Yn; see Fig. 6
VCC = 2.0 V
[1]
[1]
[1]
[2]
-
-
-
-
47
17
14
14
150
30
-
-
-
-
-
190
38
-
-
-
-
-
225 ns
45 ns
ns
VCC = 4.5 V
VCC = 5.0 V; CL = 15 pF
VCC = 6.0 V
-
26
33
38 ns
E3 to Yn; see Fig. 6
VCC = 2.0 V
-
-
-
-
52
19
16
15
160
32
-
-
-
-
-
200
40
-
-
-
-
-
240 ns
48 ns
VCC = 4.5 V
VCC = 5.0 V; CL = 15 pF
VCC = 6.0 V
-
ns
27
34
41 ns
En to Yn or see Fig. 7
VCC = 2.0 V
-
-
-
-
50
18
17
14
155
31
-
-
-
-
-
195
39
-
-
-
-
-
235 ns
47 ns
VCC = 4.5 V
VCC = 5.0 V; CL = 15 pF
VCC = 6.0 V
-
ns
26
33
40 ns
tt
transition time see Fig. 6 and Fig. 7
VCC = 2.0 V
-
-
-
-
19
7
75
15
13
-
-
-
-
-
95
19
16
-
-
-
-
-
110 ns
22 ns
19 ns
VCC = 4.5 V
VCC = 6.0 V
6
CPD
power
per package; VI = GND to VCC [3]
72
-
pF
dissipation
capacitance
©
74HC_HCT238
All information provided in this document is subject to legal disclaimers.
Nexperia B.V. 2021. All rights reserved
Product data sheet
Rev. 7 — 2 September 2021
7 / 15
Nexperia
74HC238; 74HCT238
3-to-8 line decoder/demultiplexer
Symbol Parameter
Conditions
25 °C
Typ
-40 °C to
+85 °C
-40 °C to
+125 °C
Unit
Min
Max
Min
Max
Min
Max
74HCT238
tpd
propagation
delay
An to Yn; see Fig. 6
VCC = 4.5 V
[1]
[1]
[1]
-
-
19
18
35
-
-
-
44
-
-
-
53 ns
ns
VCC = 5.0 V; CL = 15 pF
E3 to Yn; see Fig. 6
VCC = 4.5 V
-
-
-
20
20
37
-
-
-
46
-
-
-
56 ns
ns
VCC = 5.0 V; CL = 15 pF
En to Yn or see Fig. 7
VCC = 4.5 V
-
-
-
-
20
21
7
35
-
-
-
-
44
-
-
-
-
53 ns
ns
22 ns
VCC = 5.0 V; CL = 15 pF
-
tt
transition time VCC = 4.5 V;
see Fig. 6 and Fig. 7
[2]
[3]
15
19
CPD
power
dissipation
capacitance
per package;
VI = GND to VCC - 1.5 V
-
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):
PD = CPD x VCC 2 x fi x N + ∑ (CL x VCC 2 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;
∑ (CL x VCC 2 x fo) = sum of outputs.
10.1. Waveforms and test circuit
An, E3 input
V
M
t
t
PLH
PHL
V
Y
V
Yn output
M
V
X
t
t
TLH
THL
001aag757
Measurement points are given in Table 8.
Fig. 6. Input (An, E3) to output (Yn) propagation delays and output transition times
©
74HC_HCT238
All information provided in this document is subject to legal disclaimers.
Nexperia B.V. 2021. All rights reserved
Product data sheet
Rev. 7 — 2 September 2021
8 / 15
Nexperia
74HC238; 74HCT238
3-to-8 line decoder/demultiplexer
E1, E2 input
Yn output
V
M
t
t
PLH
PHL
V
Y
V
M
V
X
t
t
TLH
THL
001aag758
Measurement points are given in Table 8.
Fig. 7. Input (E1, E2) to output (Yn) propagation delays and output transition times
Table 8. Measurement points
Type
Input
VM
Output
VM
VX
VY
74HC238
0.5VCC
1.3 V
0.5VCC
1.3 V
0.1VCC
0.1VCC
0.9VCC
0.9VCC
74HCT238
t
W
V
I
90 %
negative
pulse
V
V
V
M
M
10 %
0 V
t
t
r
f
t
t
f
r
V
I
90 %
positive
pulse
V
M
M
10 %
0 V
t
W
V
V
CC
CC
V
I
V
O
R
L
S1
G
open
DUT
R
T
C
L
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
Fig. 8. Test circuit for measuring switching times
Table 9. Test data
Type
Input
VI
Load
S1 position
tPHL, tPLH
open
tr, tf
6 ns
6 ns
CL
RL
74HC238
VCC
3 V
15 pF, 50 pF
15 pF, 50 pF
1 kΩ
1 kΩ
74HCT238
open
©
74HC_HCT238
All information provided in this document is subject to legal disclaimers.
Nexperia B.V. 2021. All rights reserved
Product data sheet
Rev. 7 — 2 September 2021
9 / 15
Nexperia
74HC238; 74HCT238
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
v
c
y
H
M
A
E
Z
16
9
Q
A
2
A
(A )
3
A
1
pin 1 index
θ
L
p
L
1
8
e
w
M
detail X
b
p
0
2.5
scale
5 mm
DIMENSIONS (inch dimensions are derived from the original mm dimensions)
A
(1)
(1)
(1)
UNIT
A
A
A
b
c
D
E
e
H
E
L
L
p
Q
v
w
y
Z
θ
1
2
3
p
max.
0.25
0.10
1.45
1.25
0.49
0.36
0.25
0.19
10.0
9.8
4.0
3.8
6.2
5.8
1.0
0.4
0.7
0.6
0.7
0.3
mm
1.27
0.05
1.05
0.041
1.75
0.25
0.01
0.25
0.1
0.25
0.01
8o
0o
0.0100
0.0075
0.010 0.057
0.004 0.049
0.019
0.014
0.39
0.38
0.16
0.15
0.244
0.228
0.039 0.028
0.016 0.020
0.028
0.012
inches
0.069
0.01 0.004
Note
1. Plastic or metal protrusions of 0.15 mm (0.006 inch) maximum per side are not included.
REFERENCES
OUTLINE
EUROPEAN
PROJECTION
ISSUE DATE
VERSION
IEC
JEDEC
JEITA
99-12-27
03-02-19
SOT109-1
076E07
MS-012
Fig. 9. Package outline SOT109-1 (SO16)
©
74HC_HCT238
All information provided in this document is subject to legal disclaimers.
Nexperia B.V. 2021. All rights reserved
Product data sheet
Rev. 7 — 2 September 2021
10 / 15
Nexperia
74HC238; 74HCT238
3-to-8 line decoder/demultiplexer
TSSOP16: plastic thin shrink small outline package; 16 leads; body width 4.4 mm
SOT403-1
D
E
A
X
c
y
H
v
M
A
E
Z
9
16
Q
(A )
3
A
2
A
A
1
pin 1 index
θ
L
p
L
1
8
detail X
w
M
b
p
e
0
2.5
5 mm
scale
DIMENSIONS (mm are the original dimensions)
A
(1)
(2)
(1)
UNIT
A
A
A
b
c
D
E
e
H
L
L
Q
v
w
y
Z
θ
1
2
3
p
E
p
max.
8o
0o
0.15
0.05
0.95
0.80
0.30
0.19
0.2
0.1
5.1
4.9
4.5
4.3
6.6
6.2
0.75
0.50
0.4
0.3
0.40
0.06
mm
1.1
0.65
1
0.2
0.13
0.1
0.25
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.
REFERENCES
OUTLINE
EUROPEAN
PROJECTION
ISSUE DATE
VERSION
IEC
JEDEC
JEITA
99-12-27
03-02-18
SOT403-1
MO-153
Fig. 10. Package outline SOT403-1 (TSSOP16)
©
74HC_HCT238
All information provided in this document is subject to legal disclaimers.
Nexperia B.V. 2021. All rights reserved
Product data sheet
Rev. 7 — 2 September 2021
11 / 15
Nexperia
74HC238; 74HCT238
3-to-8 line decoder/demultiplexer
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
SOT763-1
B
A
D
A
A
1
E
c
detail X
terminal 1
index area
C
terminal 1
index area
e
1
y
y
e
b
v
M
C
C
A
B
C
1
w
M
2
7
L
1
8
9
E
h
e
16
15
10
D
h
X
0
2.5
scale
5 mm
DIMENSIONS (mm are the original dimensions)
(1)
A
(1)
(1)
UNIT
A
1
b
c
E
h
e
e
y
D
D
E
L
v
w
y
1
1
h
max.
0.05 0.30
0.00 0.18
3.6
3.4
2.15
1.85
2.6
2.4
1.15
0.85
0.5
0.3
mm
0.05
0.1
1
0.2
0.5
2.5
0.1
0.05
Note
1. Plastic or metal protrusions of 0.075 mm maximum per side are not included.
REFERENCES
OUTLINE
EUROPEAN
PROJECTION
ISSUE DATE
VERSION
IEC
JEDEC
JEITA
02-10-17
03-01-27
SOT763-1
- - -
MO-241
- - -
Fig. 11. Package outline SOT763-1 (DHVQFN16)
©
74HC_HCT238
All information provided in this document is subject to legal disclaimers.
Nexperia B.V. 2021. All rights reserved
Product data sheet
Rev. 7 — 2 September 2021
12 / 15
Nexperia
74HC238; 74HCT238
3-to-8 line decoder/demultiplexer
12. Abbreviations
Table 10. Abbreviations
Acronym
Description
CMOS
DUT
ESD
HBM
MM
Complementary Metal Oxide Semiconductor
Device Under Test
ElectroStatic Discharge
Human Body Model
Machine Model
TTL
Transistor-Transistor Logic
13. Revision history
Table 11. Revision history
Document ID
Release date Data sheet status
20210902 Product data sheet
Type number 74HCT238DB (SOT338-1) removed.
20200403 Product data sheet
Type number 74HC238DB (SOT338-1) removed.
Table 4: Derating values for Ptot total power dissipation updated.
Product data sheet 74HC_HCT238 v.4
Change notice Supersedes
74HC_HCT238 v.7
Modifications:
-
74HC_HCT238 v.6
•
74HC_HCT238 v.6
Modifications:
-
74HC_HCT238 v.5
•
•
74HC_HCT238 v.5
Modifications:
20180613
-
•
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.
Fig. 3: typo corrected.
74HC_HCT238 v.4
Modifications:
20160127
Type numbers 74HC238N and 74HCT238N (SOT38-4) removed.
20070716 Product data sheet 74HC_HCT238_CNV v.2
Product data sheet
-
74HC_HCT238 v.3
•
74HC_HCT238 v.3
Modifications:
-
•
The format of this data sheet has been redesigned to comply with the new identity
guidelines of NXP Semiconductors.
•
•
Legal texts have been adapted to the new company name where appropriate.
Added type number 74HC238BQ and 74HCT238BQ (DHVQFN16 package)
74HC_HCT238_CNV v.2
19970828
Product specification
-
-
©
74HC_HCT238
All information provided in this document is subject to legal disclaimers.
Nexperia B.V. 2021. All rights reserved
Product data sheet
Rev. 7 — 2 September 2021
13 / 15
Nexperia
74HC238; 74HCT238
3-to-8 line decoder/demultiplexer
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.
14. Legal information
Quick reference data — The Quick reference data is an extract of the
product data given in the Limiting values and Characteristics sections of this
document, and as such is not complete, exhaustive or legally binding.
Data sheet status
Document status Product
Definition
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.
[1][2]
status [3]
Objective [short]
data sheet
Development
This document contains data from
the objective specification for
product development.
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.
Preliminary [short]
data sheet
Qualification
Production
This document contains data from
the preliminary specification.
Product [short]
data sheet
This document contains the product
specification.
[1] Please consult the most recently issued document before initiating or
completing a design.
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.
[2] The term 'short data sheet' is explained in section "Definitions".
[3] 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 https://www.nexperia.com.
Definitions
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.
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.
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.
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.
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.
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.
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.
Non-automotive qualified products — Unless this data sheet expressly
states that this specific Nexperia product is automotive qualified, the
product is not suitable for automotive use. It is neither qualified nor tested in
accordance with automotive testing or application requirements. Nexperia
accepts no liability for inclusion and/or use of non-automotive qualified
products in automotive equipment or applications.
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.
In the event that customer uses the product for design-in and use in
automotive applications to automotive specifications and standards,
customer (a) shall use the product without Nexperia’s warranty of the
product for such automotive applications, use and specifications, and (b)
whenever customer uses the product for automotive applications beyond
Nexperia’s specifications such use shall be solely at customer’s own risk,
and (c) customer fully indemnifies Nexperia for any liability, damages or failed
product claims resulting from customer design and use of the product for
automotive applications beyond Nexperia’s standard warranty and Nexperia’s
product specifications.
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.
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.
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.
Trademarks
Suitability for use — Nexperia products are 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
Notice: All referenced brands, product names, service names and
trademarks are the property of their respective owners.
©
74HC_HCT238
All information provided in this document is subject to legal disclaimers.
Nexperia B.V. 2021. All rights reserved
Product data sheet
Rev. 7 — 2 September 2021
14 / 15
Nexperia
74HC238; 74HCT238
3-to-8 line decoder/demultiplexer
Contents
1. General description......................................................1
2. Features and benefits.................................................. 1
3. Ordering information....................................................1
4. Functional diagram.......................................................2
5. Pinning information......................................................3
5.1. Pinning.........................................................................3
5.2. Pin description.............................................................3
6. Functional description................................................. 4
7. Limiting values............................................................. 4
8. Recommended operating conditions..........................5
9. Static characteristics....................................................5
10. Dynamic characteristics............................................ 7
10.1. Waveforms and test circuit........................................ 8
11. Package outline........................................................ 10
12. Abbreviations............................................................13
13. Revision history........................................................13
14. Legal information......................................................14
© Nexperia B.V. 2021. 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: 2 September 2021
©
74HC_HCT238
All information provided in this document is subject to legal disclaimers.
Nexperia B.V. 2021. All rights reserved
Product data sheet
Rev. 7 — 2 September 2021
15 / 15
相关型号:
74HC240BQ-Q100
HC/UH SERIES, DUAL 4-BIT DRIVER, INVERTED OUTPUT, PQCC20, 2.50 X 4.50 MM, 0.85 MM HEIGHT, PLASTIC, MO-241, SOT764-1, DHVQFN-20
NXP
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