DS1302 real-time clock module with battery CR2032

property:
Clock time is the ability to calculate the seconds minutes hours days weeks months and years before 2100 including the ability to leap year adjustment.
318-bit data storage RAM retention.
Port I / O Serial numbers peg minimum.
Wide working voltage range of 2 5.5V.
When electricity runs at 2.0V less than 300nA.
When the read / write clock or RAM data transmission has two modes of data transmission is a single-byte character sets and multi-byte transfer.
8 feet DIP or SOIC package measuring 8 feet by assembling surface.
A simple 3-wire interface.
TTL compatible Vcc = 5V
Industrial temperature range of -40 to + 85 option.
Power supply and dual redundant power supply.


Details:

PCB is a single panel size: 44mm * 23mm * 1.6mm.
There are 4 holes the diameter of 3.1 mm.
Battery standby is authentic CR2032 Voltage 3V current 260mAh non-rechargeable battery. Theoretical data storage for over 10 years!
Crystal oscillator Slater 32.768KHz Japan imported crystal oscillator Slater matching capacity 6pF 2 * 6 mm.
DS1302 8 feet directly in the chip the chip has a seat IC easy to change and replace the chip.
Voltage module is compatible with 3.3V / 5V and can be connected to a microcomputer 5V and 3.3V on.
Operating temperature: 0 --- 70 C.