DS1643 Maxim, DS1643 Datasheet - Page 13

• Manufacturer Part Number: DS1643
• Description: The DS1643 is an 8K x 8 nonvolatile static RAM with a full function Real Time Clock (RTC) that are both accessible in a byte-wide format
• Manufacturer: Maxim

DS1643 28-PIN PACKAGE
13 of 17
A IN.
B IN.
C IN.
D IN.
G IN.
H IN.
K IN.
E IN.
F IN.
J IN.
PKG
DIM
MM
MM
MM
MM
MM
MM
MM
MM
MM
MM
1.470
37.34
0.675
17.75
0.315
0.075
0.015
0.140
0.090
0.590
14.99
0.010
0.015
8.51
1.91
0.38
3.56
2.29
0.25
0.43
MIN
28-PIN
1.490
37.85
0.740
18.80
0.335
0.105
0.030
0.180
0.110
0.630
16.00
0.018
0.025
MAX
9.02
2.67
0.76
4.57
2.79
0.45
0.58
DS1643/DS1643P