at28hc256e-70pc ATMEL Corporation, at28hc256e-70pc Datasheet - Page 24

• Manufacturer Part Number: at28hc256e-70pc
• Description: 256 32k X 8 High-speed Parallel Eeprom
• Manufacturer: ATMEL Corporation

31.8
24
28U – PGA
Dimensions in Millimeters and (Inches).
Controlling dimension: Inches.
AT28HC256
R
2325 Orchard Parkway
San Jose, CA 95131
16.71(0.658)
16.31(0.642)
TITLE
28U, 28-pin, Ceramic Pin Grid Array (PGA)
10.41(0.410)
13.74(0.540)
13.36(0.526)
14.17(0.558)
13.77(0.542)
9.91(0.390)
15.24(0.600)
14.88(0.586)
2.54(0.100) TYP
12.70(0.500) TYP
2.54(0.100) TYP
2.57(0.101)
2.06(0.081)
7.26(0.286)
6.50(0.256)
1.57(0.062)
1.83(0.072)
3.12(0.123)
2.62(0.103)
1.40(0.055)
1.14(0.045)
0.58(0.023)
0.43(0.017)
DRAWING NO.
28U
0007L–PEEPR–03/08
10/21/03
REV.
B