m48t35 STMicroelectronics, m48t35 Datasheet - Page 21

• Manufacturer Part Number: m48t35
• Description: 5v, 256 Kbit 32 Kb X 8 Timekeeper Sram
• Manufacturer: STMicroelectronics

6
Note:
Package mechanical information
In order to meet environmental requirements, ST offers these devices in ECOPACK
packages. These packages have a Lead-free second level interconnect. The category of
second Level Interconnect is marked on the package and on the inner box label, in
compliance with JEDEC Standard JESD97. The maximum ratings related to soldering
conditions are also marked on the inner box label. ECOPACK is an ST trademark.
ECOPACK specifications are available at: www.st.com.
Figure 13. PCDIP28 – 28-pin plastic DIP, battery CAPHAT, package outline
Drawing is not to scale.
Table 12.
Symbol
A1
A2
B1
eA
e1
e3
A
B
C
D
E
N
L
PCDIP28 – 28-pin plastic DIP, battery CAPHAT, package mechanical data
Typ
B1
N
1
39.37
17.83
29.72
15.24
8.89
0.38
8.38
0.38
1.14
0.20
2.29
3.05
mm
Min
28
e3
D
B
e1
A1
39.88
18.34
36.32
16.00
Max
9.65
0.76
8.89
0.53
1.78
0.31
2.79
3.81
A2
E
A
L
Typ
eA
PCDIP
inches
0.350
0.015
0.330
0.015
0.045
0.008
1.550
0.702
0.090
1.170
0.600
0.120
Min
C
28
0.380
0.030
0.350
0.021
0.070
0.012
1.570
0.722
0.110
1.430
0.630
0.150
Max
®
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