12

AT28HC256N

3446B–PEEPR–4/04

Packaging Information

32J – PLCC

DRAWING NO.

REV.

2325 Orchard Parkway

San Jose, CA 95131

R

TITLE

32J, 32-lead, Plastic J-leaded Chip Carrier (PLCC)

B

32J

10/04/01

1.14(0.045) X 45˚

PIN NO. 1

IDENTIFIER

1.14(0.045) X 45˚

0.51(0.020)MAX

0.318(0.0125)

0.191(0.0075)

A2

45˚ MAX (3X)

A

A1

B1

E2

B

e

E1

E

D1

D

D2

COMMON DIMENSIONS

(Unit of Measure = mm)

SYMBOL

MIN

NOM

MAX

NOTE

Notes:

1. This package conforms to JEDEC reference MS-016, Variation AE.

2. Dimensions D1 and E1 do not include mold protrusion.

Allowable protrusion is .010"(0.254 mm) per side. Dimension D1

and E1 include mold mismatch and are measured at the extreme

material condition at the upper or lower parting line.

3. Lead coplanarity is 0.004" (0.102 mm) maximum.

A

3.175

–

3.556

A1

1.524

–

2.413

A2

0.381

–

–

D

12.319

–

12.573

D1

11.354

–

11.506

Note 2

D2

9.906

–

10.922

E

14.859

–

15.113

E1

13.894

–

14.046

Note 2

E2

12.471

–

13.487

B

0.660

–

0.813

B1

0.330

–

0.533

e

1.270 TYP