m28256 STMicroelectronics, m28256 Datasheet - Page 18

• Manufacturer Part Number: m28256
• Description: 256 Kbit 32kb X8 Parallel Eeprom With Software Data Protection
• Manufacturer: STMicroelectronics

M28256
Drawing is not to scale.
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Ne
Symb
A1
A2
B1
D1
D2
E1
E2
Nd
Ne
A
B
D
E
R
N
e
F
PLCC32 - 32 lead Plastic Leaded Chip Carrier, rectangular
PLCC
1.27
0.89
Typ
D1
Nd
D
1 N
12.32
14.86
13.89
12.45
11.35
2.54
1.52
0.33
0.66
9.91
0.00
mm
Min
32
–
–
–
7
9
E1 E
12.57
10.92
14.10
13.46
11.56
15.11
Max
3.56
2.41
0.38
0.53
0.81
0.25
–
–
R
0.51 (.020)
F
1.14 (.045)
0.050
0.035
Typ
D2/E2
inches
0.100
0.060
0.013
0.026
0.485
0.447
0.390
0.585
0.547
0.490
0.000
A2
Min
B
32
–
–
–
7
9
CP
A
A1
0.140
0.095
0.015
0.021
0.032
0.495
0.455
0.430
0.595
0.555
0.530
0.010
Max
–
–
B1
e