GENERAL DESCRIPTION

The DS1307 serial real-time clock (RTC) is a

low-power, full binary-coded decimal (BCD)

clock/calendar plus 56 bytes of NV SRAM.

Address and data are transferred serially through

an I2 C, bidirectional 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 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.

The DS1307 has a built-in power-sense circuit

that detects power failures and automatically

switches to the backup supply. Timekeeping

operation continues while the part operates from

the backup supply.

FEATURES ƒ

♦ Real-Time Clock (RTC) Counts Seconds,

Minutes, Hours, Date of the Month, Month,

Day of the week, and Year with Leap-Year

Compensation Valid Up to 2100 ƒ

♦ 56-Byte, Battery-Backed, Nonvolatile (NV)

RAM for Data Storage ƒ

♦ I²C Serial Interface ƒ

♦ Programmable Square-Wave Output Signal

♦ ƒ Automatic Power-Fail Detect and Switch Circuitry

♦ ƒ Consumes Less than 500nA in Battery-

Backup Mode with Oscillator Running

♦ ƒ Optional Industrial Temperature Range:

-40°C to +85°C

♦ ƒ Available in 8-Pin Plastic DIP or SO

♦ ƒ Underwriters Laboratory (UL) Recognized

TIMING DIAGRAM

           King--- Originator of ANTERWELL, engaged in the IC electronics industry in 1998 and establish ANTERWELL in 2004. The company is located in Shenzhen Huaqiang North, the largest electronic center in Asia. Our main business is the technical development and electronic products import and export business. Currently, we have branches in Hong Kong and Malaysia.

           Up to now. ANTERWELL have more than 1,000,000 types of electronic components in stock. ANTERWELL has become one of the top choices for purchasing IC chips both domestically and internationally. King is a senior IC chip expert, sales engineer, and mentor, leading an elite team with customer first, quality first, honesty, trustworthiness, and mutual benefit. We look forward to cooperate with you to create a better future!

            ANTERWELL’s main products include semiconductors, resistors, capacitors, diodes, inductors, connectors, transistors, sensors, etc. Involving the major well-known brands such like: TI, XILINX, FAIRCHILD, STM, MICRON, MICROCHIP, TDK, SAMSUNG, ON, NXP,IR,ADI, ATMEL,VISHAY,LINEAR etc.

            ANTERWELL adheres to the development concept and purpose of "direct stock offer, excellent quality, favorable price, and sincere service", which is deeply recognized by domestic and foreign customers. Based on the long-term development goal, ANTERWELL provides customers with standardized, professional, and diversified high-quality services through a strong market service network. ANTEWRELL has multiple skilled and capable executives with a professional QC team and excellent sales team to win the high support and trust of the vast customer base! We provide the best quality, price and service.

           ANTERWELL will be your best Partner.