74HC237
3-to-8 line decoder, demultiplexer with address latches
Rev. 8 — 26 October 2021
Product data sheet
1. General description
The 74HC237 is a 3-to-8 line decoder, demultiplexer with latches at the three address inputs (An).
The 74HC237 essentially combines the 3-to-8 decoder function with a 3-bit storage latch. When
the latch is enabled (LE = LOW), the 74HC237 acts as a 3-to-8 active LOW decoder. When the
latch enable (LE) goes from LOW-to-HIGH, the last data present at the inputs before this transition,
is stored in the latches. Further address changes are ignored as long as LE remains HIGH. The
output enable input (E1 and E2) controls the state of the outputs independent of the address inputs
or latch operation. All outputs are HIGH unless E1 is LOW and E2 is HIGH. The 74HC237 is ideally
suited for implementing non-overlapping decoders in 3-state systems and strobes (stored address)
applications in bus-oriented systems.
2. Features and benefits
•
•
•
•
•
•
•
•
•
•
•
•
Combines 3-to-8 decoder with 3-bit latch
Multiple input enable for easy expansion or independent controls
Active HIGH mutually exclusive outputs
Wide supply voltage range from 2.0 V to 6.0 V
CMOS low power dissipation
High noise immunity
Latch-up performance exceeds 100 mA per JESD 78 Class II Level B
Complies with JEDEC standards:
• JESD8C (2.7 V to 3.6 V)
• JESD7A (2.0 V to 6.0 V)
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
74HC237D
-40 °C to +125 °C
SO16
plastic small outline package; 16 leads;
body width 3.9 mm
SOT109-1
74HC237DB
-40 °C to +125 °C
SSOP16
plastic shrink small outline package; 16 leads;
body width 5.3 mm
SOT338-1
74HC237PW
-40 °C to +125 °C
TSSOP16
plastic thin shrink small outline package; 16 leads;
body width 4.4 mm
SOT403-1
74HC237
Nexperia
3-to-8 line decoder, demultiplexer with address latches
4. Functional diagram
4
LE
Y0 15
Y1 14
Y2 13
1 A0
2 A1
INPUT
LATCHES
3 A2
Y3 12
3 TO 8
DECODER
Y4 11
Y5 10
Y6 9
Y7 7
5 E1
6 E2
001aab871
Fig. 1.
Functional diagram
DX
4
1
2
3
C8
0
0
0
8D,G
7
2
1
2
3
4
5
4
6
5
&
6
7
LE
Y0
Y1
1
2
3
A0
A1
A2
Y2
INPUT
LATCHES
Y3
3 TO 8
DECODER Y4
Y5
Y6
Y7
5
6
14
4
12
1
11
2
10
3
9
C8
0
8D,1
1
8D,2
2
8D,4
3
4
7
5
6
5
&
001aab869
74HC237
Product data sheet
13
12
11
10
9
7
X/Y
13
E1
Logic symbol
14
15
6
7
15
14
13
12
11
10
9
7
EN
E2
Fig. 2.
15
001aab870
Fig. 3.
IEC logic symbol
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74HC237
Nexperia
3-to-8 line decoder, demultiplexer with address latches
A0
LATCH
LE
A1
LATCH
LE
A0
Y0
A0
LE
Y1
A1
A1
LE
Y2
A2
A2
LATCH
LE
Y3
A2
LE
Y4
LE
Y5
Y6
Y7
E1
001aab872
E2
Fig. 4.
Logic diagram
5. Pinning information
5.1. Pinning
74HC237
A0
1
16 VCC
A1
2
15 Y0
A2
3
14 Y1
A0
1
16 VCC
A1
2
15 Y0
A2
3
14 Y1
LE
4
13 Y2
LE
4
13 Y2
E1
5
12 Y3
E1
5
12 Y3
6
11 Y4
10 Y5
E2
6
11 Y4
E2
Y7
7
10 Y5
Y7
7
GND
8
GND
8
9
Y6
001aab868
Fig. 5.
74HC237
Pin configuration SOT109-1 (SO16)
74HC237
Product data sheet
9
Y6
001aan382
Fig. 6.
Pin configuration SOT338-1 (SSOP16) and
SOT403-1 (TSSOP16)
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74HC237
Nexperia
3-to-8 line decoder, demultiplexer with address latches
5.2. Pin description
Table 2. Pin description
Symbol
Pin
Description
A0 to A2
1, 2, 3
data input
LE
4
latch enable input (active LOW)
E1
5
data enable input 1 (active LOW)
E2
6
data enable input 2 (active HIGH)
Y0 to Y7
15, 14, 13, 12, 11, 10, 9, 7
output
GND
8
ground (0 V)
VCC
16
supply voltage
6. Functional description
Table 3. Function table
H = HIGH voltage level; L = LOW voltage level; X = don’t care.
Enable
Input
Output
LE
E1
E2
A0
A1
A2
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
H
L
H
X
X
X
stable
X
H
X
X
X
X
L
L
L
L
L
L
L
L
X
X
L
X
X
L
L
H
L
L
X
L
L
L
L
L
L
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
L
H
L
L
H
L
L
L
L
H
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
74HC237
Product data sheet
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74HC237
Nexperia
3-to-8 line decoder, demultiplexer with address latches
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
Unit
-0.5
+7
V
VCC
supply voltage
IIK
input clamping current
VI < -0.5 V or VI > VCC + 0.5 V
-
±20
mA
IOK
output clamping current
VO < -0.5 V or VO > VCC + 0.5 V
-
±20
mA
IO
output current
VO = -0.5 V to (VCC + 0.5 V)
-
±25
mA
ICC
supply current
-
+50
mA
IGND
ground current
-
-50
mA
Tstg
storage temperature
-65
+150
°C
Ptot
total power dissipation
-
500
mW
[1]
[1]
For SOT109-1 (SO16) package: Ptot derates linearly with 12.4 mW/K above 110 °C.
For SOT338-1 (SSOP16) package: Ptot derates linearly with 8.5 mW/K above 91 °C.
For SOT403-1 (TSSOP16) package: Ptot derates linearly with 8.5 mW/K above 91 °C.
8. Recommended operating conditions
Table 5. Recommended operating conditions
Voltages are referenced to GND (ground = 0 V)
Symbol Parameter
VCC
supply voltage
VI
input voltage
VO
output voltage
Tamb
ambient temperature
Δt/ΔV
input transition rise and fall rate
74HC237
Product data sheet
Conditions
Min
Typ
Max
Unit
2.0
5.0
6.0
V
0
-
VCC
V
0
-
VCC
V
-40
+25
+125
°C
VCC = 2.0 V
-
-
625
ns/V
VCC = 4.5 V
-
1.67
139
ns/V
VCC = 6.0 V
-
-
83
ns/V
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74HC237
Nexperia
3-to-8 line decoder, demultiplexer with address latches
9. Static characteristics
Table 6. Static characteristics
At recommended operating conditions; voltages are referenced to GND (ground = 0 V).
Symbol Parameter
VIH
VIL
VOH
VOL
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
LOW-level input VCC = 2.0 V
voltage
VCC = 4.5 V
-
0.8
0.5
-
0.5
-
0.5
V
-
2.1
1.35
-
1.35
-
1.35
V
VCC = 6.0 V
-
2.8
1.8
-
1.8
-
1.8
V
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
HIGH-level
input voltage
HIGH-level
output voltage
LOW-level
output voltage
VI = VIH or VIL
VI = VIH or VIL
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
II
input leakage
current
VI = VCC or GND;
VCC = 6.0 V
-
-
±0.1
-
±1.0
-
±1.0
μA
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
74HC237
Product data sheet
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74HC237
Nexperia
3-to-8 line decoder, demultiplexer with address latches
10. Dynamic characteristics
Table 7. Dynamic characteristics
Voltages are referenced to GND (ground = 0 V); CL = 50 pF unless otherwise specified; for test circuit see Fig. 10.
Symbol Parameter
tpd
propagation
delay
Conditions
25 °C
Typ
Max
Min
Max
Min
Max
VCC = 2.0 V
-
52
160
-
200
-
240
ns
VCC = 4.5 V
-
19
32
-
40
-
48
ns
VCC = 5 V; CL = 15 pF
-
16
-
-
-
-
-
ns
VCC = 6.0 V
-
15
27
-
34
-
41
ns
VCC = 2.0 V
-
61
190
-
240
-
285
ns
VCC = 4.5 V
-
22
38
-
48
-
57
ns
VCC = 5 V; CL = 15 pF
-
19
-
-
-
-
-
ns
VCC = 6.0 V
-
18
32
-
41
-
48
ns
VCC = 2.0 V
-
47
145
-
180
-
220
ns
VCC = 4.5 V
-
17
29
-
36
-
44
ns
VCC = 5 V; CL = 15 pF
-
14
-
-
-
-
-
ns
VCC = 6.0 V
-
14
25
-
31
-
38
ns
VCC = 2.0 V
-
47
145
-
180
-
220
ns
VCC = 4.5 V
-
17
29
-
36
-
44
ns
VCC = 5 V; CL = 15 pF
-
14
-
-
-
-
-
ns
VCC = 6.0 V
-
14
25
-
31
-
38
ns
VCC = 2.0 V
-
19
75
-
95
-
110
ns
VCC = 4.5 V
-
7
15
-
19
-
22
ns
VCC = 6.0 V
-
6
13
-
16
-
19
ns
VCC = 2.0 V
50
11
-
65
-
75
-
ns
VCC = 4.5 V
10
4
-
13
-
15
-
ns
VCC = 6.0 V
9
3
-
11
-
13
-
ns
VCC = 2.0 V
50
6
-
65
-
75
-
ns
VCC = 4.5 V
10
2
-
13
-
15
-
ns
VCC = 6.0 V
9
2
-
11
-
13
-
ns
An to Yn; see Fig. 7
[1]
[1]
E1to Yn; see Fig. 8
[1]
E2 to Yn; see Fig. 7
tW
tsu
transition
time
pulse width
set-up time
74HC237
Product data sheet
-40 °C to +125 °C Unit
Min
LE to Yn; see Fig. 7
tt
-40 °C to +85 °C
Yn; see Fig. 7 and
Fig. 8
[1]
[2]
LE HIGH; see Fig. 9
An to LE; see Fig. 9
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74HC237
Nexperia
3-to-8 line decoder, demultiplexer with address latches
Symbol Parameter
Conditions
25 °C
Min
th
hold time
CPD
[1]
[2]
[3]
power
dissipation
capacitance
Typ
-40 °C to +85 °C
Max
Min
Max
An to LE; see Fig. 9
-40 °C to +125 °C Unit
Min
Max
-
VCC = 2.0 V
30
3
-
40
-
45
-
ns
VCC = 4.5 V
6
1
-
8
-
9
-
ns
VCC = 6.0 V
5
1
-
7
-
8
-
ns
-
60
-
-
-
-
-
pF
CL = 50 pF; f = 1 MHz;
VI = GND to VCC
[3]
tpd is the same as tPLH and tPHL.
tt is the same as tTHL and tTLH.
CPD is used to determine the dynamic power dissipation (PD in μW).
2
2
PD = CPD × VCC × fi × N + ∑(CL × VCC × 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 × VCC × fo) = sum of outputs.
10.1. Waveforms and test circuit
An, E2, LE
input
VM
tPHL
tPLH
90 %
Yn output
90 %
VM
10 %
10 %
tTHL
tTLH
001aab873
Measurement points are given in Table 8.
VOL and VOH are typical voltage output levels that occur with the output load.
Fig. 7.
Propagation delay input (An) and enable inputs (E2, LE) to output (Yn) and output transition time
E1 input
VM
tPHL
Yn output
tPLH
90 %
90 %
VM
10 %
10 %
tTHL
tTLH
001aab874
Measurement points are given in Table 8.
VOL and VOH are typical voltage output levels that occur with the output load.
Fig. 8.
Propagation enable inputs (E1) to output (Yn) and output transition time
74HC237
Product data sheet
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74HC237
Nexperia
3-to-8 line decoder, demultiplexer with address latches
An input
VM
th
tsu
VM
latched
LE input
transparant
th
tsu
transparant
latched
tW
001aab875
Measurement points are given in Table 8.
VOL and VOH are typical voltage output levels that occur with the output load.
Fig. 9.
The data input (An) to latch enable input (LE) set-up times, latch enable input (LE) to data input (An) hold
times and latch enable input (LE) pulse width
Table 8. Measurement points
Input
Output
VM
VM
0.5VCC
0.5VCC
VI
negative
pulse
VM
tf
tr
tr
VI
GND
VM
10 %
GND
positive
pulse
tW
90 %
tf
90 %
VM
VM
10 %
tW
VCC
G
VI
DUT
VO
RT
CL
001aah768
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.
Fig. 10. Test circuit for measuring switching times
Table 9. Test data
Input
Load
VI
tr, tf
CL
VCC
6.0 ns
15 pF, 50 pF
74HC237
Product data sheet
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Rev. 8 — 26 October 2021
Test
tPLH, tPHL
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74HC237
Nexperia
3-to-8 line decoder, demultiplexer with address latches
11. Application information
strobe
decoder enable
X0
X1
X2
LE
A2 A1 A0
237
E2 E1
Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7
0 1 2 3 4 5 6 7
input
address
to five
other
decoders
X3
X4
X5
LE
A2 A1 A0
237
E2 E1
Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7
0 1 2 3 4 5 6 7
outputs
LE
A2 A1 A0
237
E2 E1
Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7
8 9 10 11 12 13 14 15
LE
A2 A1 A0
237
E2 E1
Y0 Y1 Y2 Y3 Y4 Y5 Y6 Y7
16 17 18 19 20 21 22 23
outputs
outputs
001aab876
Fig. 11. 6-to-64 line decoder with input address storage
74HC237
Product data sheet
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Nexperia B.V. 2021. All rights reserved
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74HC237
Nexperia
3-to-8 line decoder, demultiplexer with address latches
12. 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
Fig. 12. Package outline SOT109-1 (SO16)
74HC237
Product data sheet
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Nexperia B.V. 2021. All rights reserved
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74HC237
Nexperia
3-to-8 line decoder, demultiplexer with address latches
SSOP16: plastic shrink small outline package; 16 leads; body width 5.3 mm
D
SOT338-1
E
A
X
c
y
HE
v M A
Z
9
16
Q
A2
A
(A 3)
A1
pin 1 index
θ
Lp
L
8
1
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 (1)
e
HE
L
Lp
Q
v
w
y
Z (1)
θ
mm
2
0.21
0.05
1.80
1.65
0.25
0.38
0.25
0.20
0.09
6.4
6.0
5.4
5.2
0.65
7.9
7.6
1.25
1.03
0.63
0.9
0.7
0.2
0.13
0.1
1.00
0.55
8o
0o
Note
1. Plastic or metal protrusions of 0.25 mm maximum per side are not included.
OUTLINE
VERSION
SOT338-1
REFERENCES
IEC
JEDEC
JEITA
EUROPEAN
PROJECTION
ISSUE DATE
99-12-27
03-02-19
MO-150
Fig. 13. Package outline SOT338-1 (SSOP16)
74HC237
Product data sheet
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Rev. 8 — 26 October 2021
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Nexperia B.V. 2021. All rights reserved
12 / 16
74HC237
Nexperia
3-to-8 line decoder, demultiplexer with address latches
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
Fig. 14. Package outline SOT403-1 (TSSOP16)
74HC237
Product data sheet
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Rev. 8 — 26 October 2021
©
Nexperia B.V. 2021. All rights reserved
13 / 16
74HC237
Nexperia
3-to-8 line decoder, demultiplexer with address latches
13. 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
TTL
Transistor-Transistor Logic
14. Revision history
Table 11. Revision history
Document ID
Release date
Data sheet status
Change notice Supersedes
74HC237 v.8
20211026
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.
Type number 74HC237PW (SOT403-1/TSSOP16) added.
Section 1 and Section 2 updated.
Section 7: Derating values for Ptot total power dissipation updated.
74HC237 v.7
20160129
Modifications:
•
74HC237 v.6
20120823
Modifications:
•
74HC237 v.5
20111209
Modifications:
•
74HC237 v.4
20110110
74HC237 v.3
20041112
74HC_HCT237_CNV v.2
74HC_HCT237 v.1
74HC237
Product data sheet
74HC237 v.7
Product data sheet
-
74HC237 v.6
-
74HC237 v.5
Type number 74HC237N removed.
Product data sheet
Measurement points added to Fig. 7 and Fig. 8 (errata).
Product data sheet
-
74HC237 v.4
Product data sheet
-
74HC237 v.3
Product data sheet
-
74HC_HCT237_CNV v.2
19970828
Product specification
-
74HC_HCT237 v.1
19901201
Product specification
-
-
Legal pages updated.
All information provided in this document is subject to legal disclaimers.
Rev. 8 — 26 October 2021
©
Nexperia B.V. 2021. All rights reserved
14 / 16
74HC237
Nexperia
3-to-8 line decoder, demultiplexer with address latches
15. Legal information
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.
Data sheet status
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.
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 https://www.nexperia.com.
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.
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.
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
74HC237
Product data sheet
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 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.
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.
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 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.
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.
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. 8 — 26 October 2021
©
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15 / 16
74HC237
Nexperia
3-to-8 line decoder, demultiplexer with address latches
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............................................................. 4
6. Functional description................................................. 4
7. Limiting values............................................................. 5
8. Recommended operating conditions..........................5
9. Static characteristics....................................................6
10. Dynamic characteristics............................................ 7
10.1. Waveforms and test circuit........................................ 8
11. Application information............................................10
12. Package outline........................................................ 11
13. Abbreviations............................................................ 14
14. Revision history........................................................14
15. Legal information......................................................15
©
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: 26 October 2021
74HC237
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 8 — 26 October 2021
©
Nexperia B.V. 2021. All rights reserved
16 / 16