M87C257 Datasheet, PDF (11/13 Pages) STMicroelectronics – ADDRESS LATCHED 256K 32K x 8 UV EPROM and OTP EPROM

M87C257
Symb
A
A1
A2
B
B1
C
D
E
E1
e1
e3
eA
L
S
∅
α
N
FDIP28W
FDIP28W - 28 pin Ceramic Frit-seal DIP, with window
Typ
2.54
33.02
7.11
mm
Min
0.50
3.90
0.40
1.17
0.22
15.40
13.05
–
–
16.17
3.18
1.52
–
4°
28
Max
5.71
1.78
5.08
0.55
1.42
0.31
38.10
15.80
13.36
–
–
18.32
4.10
2.49
–
15°
Typ
0.100
1.300
0.280
inches
Min
0.020
0.154
0.016
0.046
0.009
0.606
0.514
–
–
0.637
0.125
0.060
–
4°
28
Max
0.225
0.070
0.200
0.022
0.056
0.012
1.500
0.622
0.526
–
–
0.721
0.161
0.098
–
15°
A2 A
B1
S
N
A1 L
B
e1
e3
D
∅
E1 E
1
Drawing is not to scale
α
C
eA
FDIPW-a
11/13