MC54/74HC157A

High–Speed CMOS Logic Data

DL129 — Rev 6

7

MOTOROLA

OUTLINE DIMENSIONS

DT SUFFIX

PLASTIC TSSOP PACKAGE

CASE 948F–01

ISSUE O

DIM

MIN

MAX

MIN

MAX

INCHES

MILLIMETERS

A

4.90

5.10

0.193

0.200

B

4.30

4.50

0.169

0.177

C

–––

1.20

–––

0.047

D

0.05

0.15

0.002

0.006

F

0.50

0.75

0.020

0.030

G

0.65 BSC

0.026 BSC

H

0.18

0.28

0.007

0.011

J

0.09

0.20

0.004

0.008

J1

0.09

0.16

0.004

0.006

K

0.19

0.30

0.007

0.012

K1

0.19

0.25

0.007

0.010

L

6.40 BSC

0.252 BSC

M

0

8

0

8

NOTES:

1. DIMENSIONING AND TOLERANCING PER ANSI

Y14.5M, 1982.

2. CONTROLLING DIMENSION: MILLIMETER.

3. DIMENSION A DOES NOT INCLUDE MOLD FLASH.

PROTRUSIONS OR GATE BURRS. MOLD FLASH OR

GATE BURRS SHALL NOT EXCEED 0.15 (0.006) PER

SIDE.

4. DIMENSION B DOES NOT INCLUDE INTERLEAD

FLASH OR PROTRUSION. INTERLEAD FLASH OR

PROTRUSION SHALL NOT EXCEED

0.25 (0.010) PER SIDE.

5. DIMENSION K DOES NOT INCLUDE DAMBAR

PROTRUSION. ALLOWABLE DAMBAR PROTRUSION

SHALL BE 0.08 (0.003) TOTAL IN EXCESS OF THE K

DIMENSION AT MAXIMUM MATERIAL CONDITION.

6. TERMINAL NUMBERS ARE SHOWN FOR

REFERENCE ONLY.

7. DIMENSION A AND B ARE TO BE DETERMINED AT

DATUM PLANE –W–.

___

_

SECTION N–N

SEATING

PLANE

IDENT.

PIN 1

1

8

16

9

DETAIL E

J

J1

B

C

D

A

K

K1

H

G

DETAIL E

F

M

L

2X

L/2

–U–

S

U

0.15 (0.006) T

S

U

0.15 (0.006) T

S

U

M

0.10 (0.004)

T

0.10 (0.004)

–T–

–V–

–W–

0.25 (0.010)

16X

REF

K

N

N

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are registered trademarks of Motorola, Inc. Motorola, Inc. is an Equal

Opportunity/Affirmative Action Employer.

Mfax is a trademark of Motorola, Inc.

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MC74HC157A/D

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