DS1553 Maxim, DS1553 Datasheet - Page 2

• Manufacturer Part Number: DS1553
• Description: The DS1553 is a full-function, year-2000-compliant (Y2KC) real-time clock/calendar (RTC) with an RTC alarm, watchdog timer, power-on reset, battery monitor, and "8k x 8 nonvolatile static RAM (NV SRAM)
• Manufacturer: Maxim

PIN DESCRIPTION
EDIP
10
21
23
24
25
11
12
13
15
16
17
18
19
20
22
26
27
28
—
1
2
3
4
5
6
7
8
9
PIN
PowerCap
2, 3, 31–34
30
25
24
23
22
21
20
19
18
28
29
27
26
16
15
14
13
12
11
10
17
2
9
8
7
1
6
5
IRQ/FT
NAME
GND
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
RST
A12
A10
A11
N.C
WE
V
CE
OE
A7
A6
A5
A4
A3
A2
A1
A0
A9
A8
CC
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
2 of 20
FUNCTION