64 X 8 Serial Real Time Clock DS1307N , 56 Byte Nonvolatile RAM

DS1307N

64 X 8 Serial Real Time Clock

FEATURES

♦ Real time clock counts seconds, minutes, hours, date of the month, month, day of the week, and year with leap year compensation valid up to 2100

♦ 56 byte nonvolatile RAM for data storage

♦ 2-wire serial interface

♦ Programmable squarewave output signal Automatic power-fail detect and switch circuitry

♦ Consumes less than 500 nA in battery backup mode with oscillator running

♦ Optional industrial temperature range -40°C to +85°C

♦ Available in 8-pin DIP or SOIC

♦ Recognized by Underwriters Laboratory

ORDERING INFORMATION

DS1307 8-Pin DIP

DS1307Z 8-Pin SOIC (150 mil)

DS1307N 8-Pin DIP (Industrial)

DS1307ZN 8-Pin SOIC (Industrial)

DESCRIPTION

The DS1307 Serial Real Time Clock is a low power, full BCD clock/calendar plus 56 bytes of nonvolatile SRAM. Address and data are transferred serially via a 2-wire bi-directional bus. The clock/calendar provides seconds, minutes, hours, day, date, month, and year information. The end of the month date is automatically adjusted for months with less than 31 days, including corrections for leap year. The clock operates in either the 24-hour or 12-hour format with AM/PM indicator. The DS1307 has a built-in power sense circuit which detects power failures and automatically switches to the battery supply.

DS1307 BLOCK DIAGRAM Figure 1

CHONGMING GROUP (HK) INT'L CO., LTD. located in Hong Kong and Shenzhen. We are an independent Distributor of Electronic Components,established in 2008. AS a growing fast company, CM GROUP is renowned for its world-class efficiency, excellent services, and extraordinary ability to supply electronic components that are hard to find and even obsolete. We have taken pride in our innovation, reliability and service, especially in the semiconductor marketplace.
Our distribution brands include XILINX，ALTERA，ATMEL, INFINEON, ST,SAMSUNG，TEXAS INSTRUMENTS，ON，TOSHIBA，，MICROCHIP，CYPRESS，FREESCALE，etc. We distributes over 200,000 products ranging from semiconductors to resistors, capacitors, diodes, inductors, connectors, transistors, sensors and so on.
Our mission is to meet and exceed all the expecations of what we supply to customers.