Ds1374 i, Typical operating characteristics – Rainbow Electronics DS1374 User Manual
Page 7
DS1374
I
2
C, 32-Bit Binary Counter Watchdog RTC with
Trickle Charger and Reset Input/Output
_____________________________________________________________________
7
I
BAT0SC1
vs. V
BAT
SQUARE-WAVE OFF
DS1374 toc01
V
BAT
(V)
SUPPLY CURRENT (nA)
5.3
4.8
4.3
3.8
3.3
2.8
2.3
1.8
350
400
450
500
550
300
1.3
V
CC
= 0V
I
BAT0SC2
vs. V
BAT
SQUARE-WAVE ON
DS1374 toc02
400
450
500
550
600
650
700
750
800
350
V
CC
= 0V
V
BAT
(V)
SUPPLY CURRENT (nA)
5.3
4.8
4.3
3.8
3.3
2.8
2.3
1.8
1.3
I
BATOSC1
vs. TEMPERATURE
V
BAT
= 3.0V
DS1374 toc03
TEMPERATURE (
°C)
SUPPLY CURRENT (nA)
80
60
40
20
0
-20
400
425
450
475
375
-40
V
CC
= 0V
I
CCA
vs. V
CC
(SQUARE-WAVE ON)
DS1374 toc04
V
CC
(V)
SUPPLY CURRENT (
µ
A)
5.3
4.8
3.8
4.3
2.8
3.3
2.3
75
100
125
150
175
200
225
250
275
50
1.8
OSCILLATOR FREQUENCY vs. V
BACKUP
DS1374 toc05
V
BACKUP
(V)
FREQUENCY (Hz)
5.3
4.8
4.3
3.8
3.3
2.8
2.3
1.8
32768.3
32768.4
32768.5
32768.6
32768.7
32768.8
32768.2
32768.1
32768.0
1.3
V
CC
= 0V
V
CC
FALLING vs. RST DELAY
DS1374 toc06
V
CC
FALLING (V/ms)
RESET DELAY (
µ
s)
10
1
0.10
1
10
100
1000
0.1
0.01
100
V
CC
= 3.0V TO 0V
Typical Operating Characteristics
(V
CC
= +3.3V, T
A
= +25°C, unless otherwise noted.)