1337GDCGI IDT, 1337GDCGI Datasheet - Page 16

• Manufacturer Part Number: 1337GDCGI
• Description: Real Time Clock Real Time Clock
• Manufacturer: IDT

Specifications of 1337GDCGI

• Rohs: yes
• Function: Clock, Calendar, Alarm
• Rtc Bus Interface: I2C
• Date Format: YY-MM-DD-dd
• Time Format: HH
• Supply Voltage - Max: 5.5 V
• Supply Voltage - Min: 1.8 V
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Package / Case: SOIC-8
• Battery Backup Switching: No
• Part # Aliases: IDT1337GDCGI

IDT®™™ REAL-TIME CLOCK WITH I
32.768 kHz Clock Accuracy with
Internal Crystal
IDT1337G
REAL-TIME CLOCK WITH I
Note 1: Limits at -40°C are guaranteed by design and are not production tested.
Note 2: SCL only.
Note 3: SDA, INTA, and SQW/INTB.
Note 4: I
Note 5: Specified with the I
Note 6: SQW enabled.
Note 7: Specified with the SQW function disabled by setting INTCN = 1.
Note 8: Using recommended crystal on X1 and X2.
Note 9: The device is fully accessible when 1.8 < VCC < 5.5 V. Time and date are maintained when 1.3 V < VCC <
1.8 V.
Note 10: After this period, the first clock pulse is generated.
Note 11: A device must internally provide a hold time of at least 300 ns for the SDA signal (referred to the V
the SCL signal) to bridge the undefined region of the falling edge of SCL.
Note 12: The maximum t
signal.
Note 13: A fast-mode device can be used in a standard-mode system, but the requirement t
then be met. This is automatically the case if the device does not stretch the LOW period of the SCL signal. If such
a device does stretch the LOW period of the SCL signal, it must output the next data bit to the SDA line t
t
Note 14: C
Note 15: Guaranteed by design. Not production tested.
SU:DAT
Parameter
= 1000 + 250 = 1250 ns before the SCL line is released.
CCA
B
—total capacitance of one bus line in pF.
—SCL clocking at maximum frequency = 400 kHz, VIL = 0.0V, VIH = VCC.
2
C SERIAL INTERFACE
2
C SERIAL INTERFACE
HD:DAT
2
C bus inactive, VIL = 0.0V, VIH = VCC.
need only be met if the device does not stretch the LOW period (t
Symbol
T
V
(crystal accuracy
±20ppm)
A
CC
=25°C
Conditions
=3.3 V
16
Min.
Typ. Max. Units
IDT1337G
±30
SU:DAT
> to 250 ns must
LOW
ppm
) of the SCL
REV L 102412
R(MAX)
IHMIN
RTC
+
of