Datasheet

DS1339 I
2
C Serial Real-Time Clock
7 of 20
TYPICAL OPERATING CHARACTERISTICS
(V
CC
= 3.3v, T
A
= +25°C, unless otherwise noted.)
I
BACKUP
vs. V
BACKUP
300
350
400
450
500
550
600
650
700
750
800
850
900
1.3 1.8 2.3 2.8 3.3 3.8 4.3 4.8 5.3
V
BACKUP
(V)
SUPPLY CURRENT (nA
V
CC
=0V
RS1=RS0=1
I
BATOSC2
(
SQWE = 1 )
I
BATOSC
1
(SQWE = 0 )
I
BACKUP
vs. Temperature
V
BACKUP
= 3.0V
300
350
400
450
500
550
600
650
-40 -20 0 20 40 60 80
TEMPERATURE (°C)
SUPPLY CURRENT (nA
V
CC
=0V
INTCN = 0
RS2 = RS1 = 1
INTCN = 0
I
CC
vs. V
CC
50
100
150
200
250
1.8 2.3 2.8 3.3 3.8 4.3 4.8 5.3
V
CC
(V)
SUPPLY CURRENT (uA
SCL=400kHz
I
CCA
SCL=SDA =0Hz
I
CCS
Oscillator Frequency vs. Supply Voltage
32768.0
32768.1
32768.2
32768.3
32768.4
32768.5
1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
Oscillator Supply Voltage (V)
FREQUENCY (Hz)