Datasheet

DS1743/DS1743P Y2K-Compliant, Nonvolatile Timekeeping RAMs
2 of 17
PIN DESCRIPTION
PIN
NAME FUNCTION
PDIP
PowerCap
1
1, 2, 3,
31–34
N.C. No Connection
2
30
A12
Address Input
3
25
A7
4
24
A6
5
23
A5
6
22
A4
7
21
A3
8
20
A2
9
19
A1
10
18
A0
11
16
DQ0
Data Input/
Output
12
15
DQ1
13
14
DQ2
14
17
GND
Ground
15
13
DQ3
Data Input/
Output
16
12
DQ4
17
11
DQ5
18
10
DQ6
19
9
DQ7
PIN
NAME FUNCTION
PDIP
PowerCap
20 8
CE
Chip Enable,
Active Low
21
28
A10
Address Input
22 7
OE
Output Enable,
Active Low
23
29
A11
Address Input
24
27
A9
25
26
A8
26
—
CE2
Chip Enable 2
27 6
WE
Write Enable,
Active Low
28 5 V
CC
Power-Supply
Input
— 4
RST
Power-On Reset
Output, Active
Low
— X1, X2
Crystal
Connection
— V
BAT
Battery
Connection