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Renesas Electronics Components Datasheet

IDT1337G Datasheet

REAL-TIME CLOCK

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REAL-TIME CLOCK WITH I2C SERIAL INTERFACE
DATASHEET
IDT1337G
General Description
The IDT1337G device is a low power serial real-time clock
(RTC) device with two programmable time-of-day alarms
and a programmable square-wave output. Address and
data are transferred serially through an I2C bus. The device
provides seconds, minutes, hours, day, date, month, and
year information. The date at the end of the month is
automatically adjusted for months with fewer than 31 days,
including corrections for leap year. The clock operates in
either the 24-hour or 12-hour format with AM/PM indicator.
Applications
Telecommunication (Routers, Switches, Servers)
Handhelds (GPS, POS terminals, MP3 players)
Set-Top Box, Digital Recording,
Office (Fax/Printers, Copiers)
Medical (Glucometer, Medicine Dispensers)
Other (Thermostats, Vending Machines, Modems, Utility
Meters, Digital Photo Frame devices)
Features
Real-Time Clock (RTC) counts seconds, minutes, hours,
day, date, month, and year with leap-year compensation
valid up to 2100
Packaged in 8-pin MSOP, 8-pin SOIC, 16-pin VFQFPN
(without integrated crystal), or 16-pin SOIC
(surface-mount package with an integrated crystal)
I2C Serial interface (Normal and Fast modes)
Two time-of-day alarms
Oscillator Stop Flag
Programmable square-wave output defaults to 32 kHz on
power-up
Operating voltage of 1.8 to 5.5 V
Industrial temperature range (-40 to +85°C)
Block Diagram
Crystal inside package
for 16-pin SOIC ONLY
X1
X2
VCC
32.768 kHz
Oscillator and
Divider
1 Hz/4.096 kHz/
8.192 kHz/32.768 kHz
MUX/
Buffer
Control
Logic
Clock,
Calendar
Counter
SQW/INTB
INTA
SCL
SDA
I2C
Interface
1 Byte 7 Bytes Alarm
Control Buffer Registers
GND
IDT® REAL-TIME CLOCK WITH I2C SERIAL INTERFACE
1
IDT1337G REV M 073013


Renesas Electronics Components Datasheet

IDT1337G Datasheet

REAL-TIME CLOCK

No Preview Available !

IDT1337G
REAL-TIME CLOCK WITH I2C SERIAL INTERFACE
Pin Assignment (8-pin MSOP/SOIC)
X1
X2
INTA
GND
1
8
2 IDT1337G 7
3
6
4
5
VCC
SQW/INTB
SCL
SDA
Pin Assignment (16-pin SOIC)
SCL
SQW/INTB
VCC
NC
NC
NC
NC
NC
1
16
2
15
3
14
4
13
IDT1337G
5
12
6
11
7
10
8
9
SDA
GND
INTA
NC
NC
NC
NC
NC
RTC
Pin Assignment (16-pin VFQFPN)
NC
1
INTA
GND
NC
5
13
NC
VCC
SQW/INTB
9
NC
IDT® REAL-TIME CLOCK WITH I2C SERIAL INTERFACE
2
IDT1337G REV M 073013



Part Number IDT1337G
Description REAL-TIME CLOCK
Maker Renesas
Total Page 3 Pages
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IDT1337G Datasheet PDF





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