DS1339 Maxim, DS1339 Datasheet - Page 7

• Manufacturer Part Number: DS1339
• Description: The DS1339 serial real-time clock (RTC) is a low-power clock/date device with two programmable time-of-day alarms and a programmable square-wave output
• Manufacturer: Maxim

TYPICAL OPERATING CHARACTERISTICS
(V
CC
= 3.3v, T
A
= +25°C, unless otherwise noted.)
900
850
800
750
700
650
600
550
500
450
400
350
300
650
600
550
500
450
400
350
300
1.3
-40
1.8
-20
RS2 = RS1 = 1
INTCN = 0
I
2.3
BACKUP
I
BACKUP
2.8
0
TEMPERATURE (°C)
V
V
vs. Temperature
(
BACKUP
SQWE = 1)
BACKUP
I
BAT OSC2
3.3
vs. V
20
= 3.0V
(V)
BACKUP
3.8
40
4.3
INTCN = 0
(SQWE = 0)
I
BAT OSC
4.8
60
RS1=RS0=1
1
V
CC
5.3
=0V
V
80
CC
=0V
7 of 20
250
200
150
100
50
32768.5
32768.4
32768.3
32768.2
32768.1
32768.0
1.8
Oscillator Frequency vs. Supply Voltage
1.0
2.3
1.5
2.8
Oscillator Supply Voltage (V)
2.0
I
CC
3.3
vs. V
2.5
V
CC
CC
(V)
3.8
3.0
DS1339 I
3.5
4.3
SCL=400kHz
SCL=SDA=0Hz
4.0
I
CCA
4.8
I
CCS
4.5
2
C Serial Real-Time Clock
5.3
5.0