DS1340-3 查看數據表（PDF） - Maxim Integrated
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DS1340-3 Datasheet PDF : 16 Pages
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DS1340
I2C RTC with Trickle Charger
VCC
VPF(MAX)
VPF(MIN)
VPF
tF
VPF
tR
tREC
INPUTS
RECOGNIZED
DON'T CARE
RECOGNIZED
OUTPUTS
VALID
HIGH-Z
VALID
Figure 2. Power-Up/Power-Down Timing
(VCC = +3.3V, TA = +25°C, unless otherwise noted.)
Typical Operating Characteristics
ICCSA vs. VCC FT = 0
250
200
150
100
50
0
1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
VCC (V)
ICCS vs. VCC FT = 0
150
125
-3.3V
100
-3.0V
75
-1.8V
50
25
0
1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
VCC (V)
IBACKUP1 (FT = 0) vs. VBACKUP
850
800
750
700
650
600
550
500
450
400
1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
VBACKUP (V)
IBACKUP2 (FT = 1) vs. VBACKUP
850
800
750
700
650
600
550
500
450
400
1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
VBACKUP (V)
IBACKUP3 vs. TEMPERATURE
850
VBACKUP = 3.0V
800
750
700
650
600
550
500
-40 -20 0
20 40 60 80
TEMPERATURE (°C)
OSCILLATOR FREQUENCY vs. SUPPLY VOLTAGE
(FT x 64)
32768.6
32768.5
32768.4
32768.3
32768.2
32768.1
32768.0
1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
VBACKUP (V)
Maxim Integrated
5
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