DS1374 Maxim, DS1374 Datasheet - Page 7

• Manufacturer Part Number: DS1374
• Description: The DS1374 is a 32-bit binary counter designed to continuously count time in seconds
• Manufacturer: Maxim

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