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DS1307Z Datasheet(PDF) 1 Page - Maxim Integrated Products |
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DS1307Z Datasheet(HTML) 1 Page - Maxim Integrated Products |
1 / 15 page 1 of 15 REV: 121906 Note: Some revisions of this device may incorporate deviations from published specifications known as errata. Multiple revisions of any device may be simultaneously available through various sales channels. For information about device errata, click here: www.maxim-ic.com/errata. 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 I2C, 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 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 56-Byte, Battery-Backed, Nonvolatile (NV) RAM for Data Storage I2C Serial Interface Programmable Square-Wave Output Signal Automatic Power-Fail Detect and Switch Circuitry Consumes Less than 500nA in Battery- Backup Mode with Oscillator Running Optional Industrial Temperature Range: -40°C to +85°C Available in 8-Pin Plastic DIP or SO Underwriters Laboratory (UL) Recognized Typical Operating Circuit and Pin Configurations appear at end of data sheet. ORDERING INFORMATION PART TEMP RANGE VOLTAGE (V) PIN-PACKAGE TOP MARK* DS1307 0°C to +70°C 5.0 8 PDIP (300 mils) DS1307 DS1307+ 0°C to +70°C 5.0 8 PDIP (300 mils) DS1307 DS1307N -40°C to +85°C 5.0 8 PDIP (300 mils) DS1307N DS1307N+ -40°C to +85°C 5.0 8 PDIP (300 mils) DS1307N DS1307Z 0°C to +70°C 5.0 8 SO (150 mils) DS1307 DS1307Z+ 0°C to +70°C 5.0 8 SO (150 mils) DS1307 DS1307ZN -40°C to +85°C 5.0 8 SO (150 mils) DS1307N DS1307ZN+ -40°C to +85°C 5.0 8 SO (150 mils) DS1307N DS1307Z/T&R 0°C to +70°C 5.0 8 SO (150 mils) Tape and Reel DS1307 DS1307Z+T&R 0°C to +70°C 5.0 8 SO (150 mils) Tape and Reel DS1307 DS1307ZN/T&R -40°C to +85°C 5.0 8 SO (150 mils) Tape and Reel DS1307N DS1307ZN+T&R -40°C to +85°C 5.0 8 SO (150 mils) Tape and Reel DS1307N + Denotes a lead-free/RoHS-compliant device. * A “+” anywhere on the top mark indicates a lead-free device. DS1307 64 x 8, Serial, I2C Real-Time Clock |
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