9

CA3272A, CA3292A

NOTES:

1. Symbols are defined in the “MO Series Symbol List” in Section

2.2 of Publication Number 95.

2. Dimensioning and tolerancing per ANSI Y14.5M-1982.

3. Dimension “D” does not include mold flash, protrusions or gate

burrs. Mold flash, protrusion and gate burrs shall not exceed

0.15mm (0.006 inch) per side.

4. Dimension “E” does not include interlead flash or protrusions. In-

terlead flash and protrusions shall not exceed 0.25mm (0.010

inch) per side.

5. The chamfer on the body is optional. If it is not present, a visual

index feature must be located within the crosshatched area.

6. “L” is the length of terminal for soldering to a substrate.

7. “N” is the number of terminal positions.

8. Terminal numbers are shown for reference only.

9. The lead width “B”, as measured 0.36mm (0.014 inch) or greater

above the seating plane, shall not exceed a maximum value of

0.61mm (0.024 inch)

10. Controlling dimension: MILLIMETER. Converted inch dimen-

sions are not necessarily exact.

INDEX

AREA

E

D

N

12

3

-B-

0.25(0.010)

C A

M

B S

e

-A-

L

B

M

-C-

A1

A

SEATING PLANE

0.10(0.004)

C

H

0.25(0.010)

B

M

M

α

Small Outline Plastic Packages (SOIC)

28 LEAD WIDE BODY SMALL OUTLINE PLASTIC PACKAGE

SYMBOL

INCHES

MILLIMETERS

NOTES

MIN

MAX

MIN

MAX

A

0.0926

0.1043

2.35

2.65

-

A1

0.0040

0.0118

0.10

0.30

-

B

0.013

0.0200

0.33

0.51

9

C

0.0091

0.0125

0.23

0.32

-

D

0.6969

0.7125

17.70

18.10

3

E

0.2914

0.2992

7.40

7.60

4

e

0.05 BSC

1.27 BSC

-

H

0.394

0.419

10.00

10.65

-

h

0.01

0.029

0.25

0.75

5

L

0.016

0.050

0.40

1.27

6

N28

28

7

α

-

Rev. 0 12/93