I2C-RTC Gravitech, I2C-RTC Datasheet - Page 2

• Manufacturer Part Number: I2C-RTC
• Description: Clock & Timer Development Tools I2C REAL-TIME CLOCK
• Manufacturer: Gravitech
• Type: RTCr

Specifications of I2C-RTC

• Rohs: yes
• Product: I2C-RTC Boards
• Tool Is For Evaluation Of: DS1340-33
• Frequency: 100 kHz to 400 kHz
• Operating Supply Voltage: 2.97 V to 5.5 V
• Dimensions: 1.05 in x 0.8 in
• Interface Type: I2C

The I2C-RTC board is a 6-pin CMOS
Real-time Clock device using I
There
required. Only two signal lines SDA and
SCL plus supply voltage and ground are
required to be connected. This makes it
perfect for embedded systems that require
real-time clock.
This board features innovations that set it
apart from other real-time clock module.
Innovations feature like on-board pull-up
resistors, battery holder and power LED.
The module can be quickly connected
directly on to the breadboard. The board
is small and compact in size 0.80 x 1.05
inches.
The I2C-RTC is designed base on
DS1340-33 IC. It is a real-time clock
(RTC)/calendar including the software
clock calibration. The device additionally
provides a lower timekeeping voltage, and
an oscillator STOP flag. The device is
capable of block access for the register
map. Two additional registers, which are
accessed individually, are required for the
trickle charger and flag. The
clock/calendar provides seconds, minutes,
hours, day, date, month, and year
information. A built-in power-sense circuit
detects power failures and automatically
switches to the backup supply. Reads and
writes are inhibited while the clock
continues to run.
are
Description
no
Copyright © 2007 MicroResearch
GRAVITECH GROUP
external
I2C-RTC
components
TM
2
User Manual
C bus.
I
2
C Real-time Clock
WWW.GRAVITECH.US
* I
2
C is a trademark of Philips Semiconductors Corporation.
• Software clock calibration
• RTC counts seconds, minutes,
•
•
•
• Stand alone module, no external
• On-board
• Decoupling supply voltage
• Design easy for breadboard
• High quality double sided PCB
• All SMT components
• Small and compact in size 0.80 x
• Dual row 0.6” width, 0.1” pitch
• Support Fast (400kHz) I
• Flexible operating power supply
• Suitable
• Portable Instruments
• Electronic Projects
• Telecommunications
• Security Systems
• And much more…
hours, day, date, month and year
Automatic power-fail detect and
switch circuitry
Low timekeeping voltage down to
1.3V
Oscillator stop flag
components required
battery holder and power LED
1.05 inches
header pins
voltage range of 2.97V to 5.5V
microcontroller
Applications
Features
for
I
2
C
pull-up
3.3V
2
C interface
or
resistors,
5.0V