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8u1 – dbga, Bottom view side view top view, De a2 a – Rainbow Electronics AT24C128 User Manual

Page 17: E1 d1 a1

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17

AT24C128/256

0670H–SEEPR–07/02

8U1 – dBGA

2325 Orchard Parkway
San Jose, CA 95131

TITLE

DRAWING NO.

R

REV.

8U1, 8-ball 0.75 pitch, Die Ball Grid Array
Package (dBGA) AT24C128 (AT19863)

1/9/02

8U1

A

d

e

Bottom View

Side View

Top View

D

E

A2

A

4

3

2

1

8

7

6

5

E1

D1

A1

-

Z

-

Z

M

8

0

.

0

Y

X

Z

M

5

1

.

0

Øb

#

#

#

#

Pin 1 Mark
this corner

COMMON DIMENSIONS

(Unit of Measure = mm)

SYMBOL

MIN

NOM

MAX

NOTE

D

3.73

D1

0.74 TYP

E

2.21

E1

0.73 TYP

e

0.75 TYP

d

0.75 TYP

A

0.90 REF

A1

0.49

0.52

0.55

A2

0.35

0.38

0.41

Ø

b

0.47

0.50

0.53

Notes: 1. This drawing is for general information only. No JEDEC Drawing to refer to for additional information.

2. Dimension is measured at the maximum solder ball diameter, parallel to primary datum Z.