DS1553 Datasheet, PDF (2/20 Pages) Maxim Integrated Products – 64kB, Nonvolatile, Year-2000-Compliant Timekeeping RAM

DS1553 64kB, Nonvolatile, Year-2000-Compliant Timekeeping RAM
PIN DESCRIPTION
PIN
EDIP PowerCap
1
2
2
30
3
25
4
24
5
23
6
22
7
21
8
20
9
19
10
18
21
28
23
29
24
27
25
26
11
16
12
15
13
14
15
13
16
12
17
11
18
10
19
9
20
8
22
7
26
1
27
6
28
5
17
—
2, 3, 31–34
NAME
RST
A12
A7
A6
A5
A4
A3
A2
A1
A0
A10
A11
A9
A8
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
CE
OE
IRQ/FT
WE
V_CC
GND
N.C
FUNCTION
Active-Low Power-On Reset Output (Open Drain)
Address Inputs
Data Input/Outputs
Active-Low Chip Enable
Active-Low Output Enable
Active-Low Interrupt/Frequency Test Output (Open Drain)
Active-Low Write Enable
Power-Supply Input
Ground
No Connection
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