M27C512
PACKAGE MECHANICAL
Figure 12. FDIP28W - 28 pin Ceramic Frit-seal DIP, with window, Package Outline
A2
A3
A1
A
L
α
B1
B
e
C
eA
eB
D2
D
S
N
1
E1
E
FDIPW-a
Note: Drawing is not to scale.
Table 13. FDIP28W - 28 pin Ceramic Frit-seal DIP, with window, Package Mechanical Data
millimeters
Min
inches
Min
Symbol
Typ
Max
5.72
1.40
4.57
4.50
0.56
–
Typ
Max
0.225
0.055
0.180
0.177
0.022
–
A
A1
A2
A3
B
0.51
3.91
3.89
0.41
–
0.020
0.154
0.153
0.016
–
B1
C
1.45
0.057
0.23
36.50
–
0.30
37.34
–
0.009
1.437
–
0.012
1.470
–
D
D2
E
33.02
15.24
1.300
0.600
–
–
–
–
E1
e
13.06
–
13.36
–
0.514
–
0.526
–
2.54
0.100
0.590
eA
eB
L
14.99
–
–
–
–
16.18
3.18
1.52
–
18.03
4.10
2.49
–
0.637
0.125
0.060
–
0.710
0.161
0.098
–
S
7.11
0.280
α
4°
11°
4°
11°
N
28
28
16/22
STMICROELECTRONICS [ ST ]
