DS1341_12 Datasheet, PDF (5/16 Pages) Maxim Integrated Products – Low-Current I2C RTCs for High-ESR Crystals

Low-Current I²C RTCs for High-ESR Crystals
(TA = +25°C, unless otherwise noted.)
Typical Operating Characteristics
DS1341 ICCT SUPPLY CURRENT vs. SUPPLY VOLTAGE
(EGFIL = 0, DOSF = 1)
450
CLKIN = GND, IOUT = 0mA
400
350
300
+85°C
+25°C
250
200
150
100
1
-40°C
2
3
4
5
SUPPLY VOLTAGE (V)
DS1341 ICCT SUPPLY CURRENT vs. SUPPLY VOLTAGE
(EGFIL = 1, DOSF = 0)
550
CLKIN = GND, IOUT = 0mA
500
450
+85°C
400
350
+25°C
300
250
200
1
2
3
4
SUPPLY VOLTAGE (V)
-40°C
5
DS1342 ICCT SUPPLY CURRENT vs. SUPPLY VOLTAGE
(EGFIL = 0, DOSF = 1)
500
CLKIN = GND, IOUT = 0mA
450
400
350
+25°C
+85°C
300
250
200
150
-40°C
100
1
2
3
4
5
SUPPLY VOLTAGE (V)
DS1342 ICCT SUPPLY CURRENT vs. SUPPLY VOLTAGE
(EGFIL = 1, DOSF = 0)
550
CLKIN = GND, IOUT = 0mA
500
450
400
+25°C
+85°C
350
300
250
200
1
-40°C
2
3
4
5
SUPPLY VOLTAGE (V)
SQW/INTB OUTPUT-VOLTAGE HIGH
vs. OUTPUT CURRENT
2.0
VCC = +1.8V, TA = +25°C
1.8
1.6
1.4
1.2
1.0
0.8
-10
-8
-6
-4
-2
0
OUTPUT CURRENT (mA)
SQW/INTB OUTPUT-VOLTAGE LOW
vs. OUTPUT CURRENT
0.5
VCC = +1.8V, TA = +25°C
0.4
0.3
0.2
0.1
0
0
2
4
6
8
10
OUTPUT CURRENT (mA)
POWER-SUPPLY CURRENT
vs. SCL FREQUENCY
80
TA = +25°C, IOUT = 0mA
70
60
50
6.0V
40
30
3.0V
20
5.0V
10
0
0
1.8V
100
200
300
400
SCL FREQUENCY (kHz)
5