DS1374_10 Datasheet, PDF (7/18 Pages) Maxim Integrated Products – I2C, 32-Bit Binary Counter Watchdog RTC with Trickle Charger and Reset Input/Output

I²C, 32-Bit Binary Counter Watchdog RTC with
Trickle Charger and Reset Input/Output
(V_CC = +3.3V, T_A = +25°C, unless otherwise noted.)
Typical Operating Characteristics
I_BAT0SC1 vs. V_BAT
SQUARE-WAVE OFF
550
V_CC = 0V
500
450
400
350
300
1.3 1.8 2.3 2.8 3.3 3.8 4.3 4.8 5.3
V_BAT (V)
I_BAT0SC2 vs. V_BAT
SQUARE-WAVE ON
800
V_CC = 0V
750
700
650
600
550
500
450
400
350
1.3 1.8 2.3 2.8 3.3 3.8 4.3 4.8 5.3
V_BAT (V)
I_BATOSC1 vs. TEMPERATURE
V_BAT = 3.0V
475
V_CC = 0V
450
425
400
375
-40 -20 0
20 40 60 80
TEMPERATURE (°C)
I_CCA vs. V_CC
(SQUARE-WAVE ON)
275
250
225
200
175
150
125
100
75
50
1.8 2.3 2.8 3.3 3.8 4.3 4.8 5.3
V_CC (V)
32768.8
32768.7
OSCILLATOR FREQUENCY vs. V_BACKUP
V_CC = 0V
32768.6
32768.5
32768.4
32768.3
32768.2
32768.1
32768.0
1.3 1.8 2.3 2.8 3.3 3.8 4.3 4.8 5.3
V_BACKUP (V)
V_CC FALLING vs. RST DELAY
1000
V_CC = 3.0V TO 0V
100
10
1
0.1
0.01
0.10
1
10
100
V_CC FALLING (V/ms)
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