IDT1339
REAL-TIME CLOCK WITH SERIAL I2C INTERFACE
RTC
Typical Operating Characteristics (V =3.3V, T =25° C)
CC A
IBACKUP vs VBACKUP
Icc vs Vcc
(IDT1339-31)
RS1=RS0=00
(IDT1339-31)
SDA=GND
425
420
415
410
405
400
395
390
385
380
20
16
12
8
INTC=1
INTC=0
SCL=400kHz
SCL=0Hz
4
0
2.7
3.2
3.7
4.2
4.7
5.2
1.3
1.8
2.3
2.8
3.3
Supply current (uA)
VBACKUP (V)
IBACKUP vs Temperature
Oscillator Frequency vs Supply Voltage
(IDT1339-31)
(IDT1339-31)
RS1=RS0=00
32768.1
32768.05
32768
500
460
420
380
340
300
INTC=1
INTC=0
Freq
2.8
3.3
3.8
4.3
4.8
5.3
-40
-20
0
20
40
60
80
Frequency (Hz)
Temperature (C)
IDT® REAL-TIME CLOCK WITH SERIAL I2C INTERFACE
19
IDT1339
REV K 032910
IDT [ INTEGRATED DEVICE TECHNOLOGY ]
