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

c

y

HE

v M A

Z

16

9

Q

A2

A1

(A3)

A

pin 1 index

θ

Lp

1

8

L

e

w M

detail X

bp

0

2.5

5 mm

scale

DIMENSIONS (inch dimensions are derived from the original mm dimensions)

UNIT

A

A

1

A

2

A

3

b

p

c

D(1)

E(1)

e

H

L

L

p

Q

v

w

y

Z (1)

θ

max.

E

mm

1.75

0.25

1.45

0.25

0.49

0.25

10.0

4.0

1.27

6.2

1.05

1.0

0.7

0.25

0.25

0.1

0.7

0.10

1.25

0.36

0.19

9.8

3.8

5.8

0.4

0.6

0.3

8o

0o

inches

0.069

0.010

0.057

0.01

0.019

0.0100

0.39

0.16

0.05

0.244

0.041

0.039

0.028

0.01

0.01

0.004

0.028

0.004

0.049

0.014

0.0075

0.38

0.15

0.228

0.016

0.020

0.012

OUTLINE

REFERENCES

EUROPEAN

ISSUE DATE

VERSION

IEC

JEDEC

JEITA

PROJECTION

SOT109-1

076E07

MS-012

99-12-27

03-02-19

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

Q

A

2

(A3)

A

pin 1 index

A1

θ

Lp

1

8

L

w M

detail X

e

bp

0

2.5

5 mm

scale

DIMENSIONS (mm are the original dimensions)

UNIT

A

A1

A2

A3

bp

c

D (1)

E (2)

e

HE

L

Lp

Q

v

w

y

Z (1)

θ

max.

mm

1.1

0.15

0.95

0.25

0.30

0.2

5.1

4.5

0.65

6.6

1

0.75

0.4

0.2

0.13

0.1

0.40

8o

0.05

0.80

0.19

0.1

4.9

4.3

6.2

0.50

0.3

0.06

0o

OUTLINE

REFERENCES

EUROPEAN

ISSUE DATE

VERSION

IEC

JEDEC

JEITA

PROJECTION

SOT403-1

MO-153

99-12-27

03-02-18

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

D

B A

A

A1

E

c

terminal 1

detail X

index area

terminal 1

e1

C

index area

y1 C

y

e

b

v M C A B

2

7

w M

C

L

1

8

Eh

e

16

9

15

10

Dh

X

0

2.5

5 mm

scale

UNIT

A(1)

A

b

c

D(1)

D

E(1)

E

e

e

1

L

v

w

y

y

max.

1

h

h

1

mm

1

0.05

0.30

0.2

3.6

2.15

2.6

1.15

0.5

2.5

0.5

0.1

0.05

0.05

0.1

0.00

0.18

3.4

1.85

2.4

0.85

0.3

OUTLINE

REFERENCES

EUROPEAN

ISSUE DATE

VERSION

IEC

JEDEC

JEITA

PROJECTION

SOT763-1

- - -

MO-241

- - -

02-10-17

03-01-27

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

Complementary Metal Oxide Semiconductor

DUT

Device Under Test

ESD

ElectroStatic Discharge

HBM

Human Body Model

MM

Machine Model

TTL

Transistor-Transistor Logic

13. Revision history

Table 11. Revision history

Document ID

Release date

Data sheet status

Change notice

Supersedes

74HC_HCT238 v.7

20210902

Product data sheet

-

74HC_HCT238 v.6

Modifications:

• Type number 74HCT238DB (SOT338-1) removed.

74HC_HCT238 v.6

20200403

Product data sheet

-

74HC_HCT238 v.5

Modifications:

• Type number 74HC238DB (SOT338-1) removed.

• Table 4: Derating values for Ptot total power dissipation updated.

74HC_HCT238 v.5

20180613

Product data sheet

-

74HC_HCT238 v.4

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.

• Fig. 3: typo corrected.

74HC_HCT238 v.4

20160127

Product data sheet

-

74HC_HCT238 v.3

Modifications:

• Type numbers 74HC238N and 74HCT238N (SOT38-4) removed.

74HC_HCT238 v.3

20070716

Product data sheet

-

74HC_HCT238_CNV v.2

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