DS1307+
I²C real-time clock with battery backup, square-wave output and 56 bytes of NV SRAM
Key details
| Part Number | DS1307+ |
|---|---|
| Manufacturer | Analog Devices (Maxim Integrated) |
| Category | Real-Time Clock |
| Lifecycle Status | Production |
| Series | DS1307 |
| Package / Case | 8-pin PDIP, 300 mil |
| Pin Count | 8 |
| Operating Temperature | 0°C to +70°C |
| Last Verified | 2026-07-20 |
Part information
DS1307+ Overview
DS1307+ is a Analog Devices (Maxim Integrated) I²C real-time clock with battery backup, square-wave output and 56 bytes of NV SRAM supplied in 8-pin PDIP, 300 mil. This page uses the exact orderable code because package, grade, temperature and option suffixes can change compatibility.
Key Technical Specifications
| Interface | I²C |
|---|---|
| Supply Voltage | 4.5 V to 5.5 V |
| User RAM | 56 bytes battery-backed SRAM |
| Clock Output | Programmable square wave |
| Backup Supply | Automatic power-fail switching |
Package and Ordering Notes
The listed package is 8-pin PDIP, 300 mil with 8 pins, leads, lands or contacts. The featured image is a generic package illustration for form-factor identification and is not an actual date-code or lot photograph. The part or family is listed by Analog Devices (Maxim Integrated) as Production at the verification date.
Sourcing Guidance
Confirm current factory lead time, packing format and revision for DS1307+ before placing the order.
For an accurate quotation, include the full MPN, target quantity, acceptable date-code range, packaging format and destination. Icearth can help review traceability documents, label photos and electrical/package alignment before order placement.
Manufacturer Documentation
Technical values were checked against Analog Devices (Maxim Integrated) documentation. Use the linked datasheet as the controlling source and re-check revisions before PCB release or firmware qualification.
DS1307+ selection and design context
DS1307+ is cataloged as a Real-Time Clock in the DS1307 family. Its recorded function is I²C real-time clock with battery backup, square-wave output and 56 bytes of NV SRAM. Selection should be based on the complete electrical limits, package drawing and ordering suffix rather than the abbreviated family code.
- Interface: I²C. Confirm logic levels, signaling mode, host support and required external components.
- Supply Voltage: 4.5 V to 5.5 V. Check rail compatibility, tolerance and sequencing under worst-case conditions.
- User RAM: 56 bytes battery-backed SRAM. Confirm the value and its datasheet test conditions for the exact ordering suffix.
- Clock Output: Programmable square wave. Confirm the value and its datasheet test conditions for the exact ordering suffix.
Application and qualification considerations
When evaluating this timing device, confirm oscillator requirements, timekeeping accuracy, backup-supply behavior and serial-interface compatibility. For a new design, review power-up behavior, interface timing, absolute maximum ratings, thermal limits and any external-component requirements in the latest manufacturer documentation. Existing-board replacement work should additionally confirm pinout, footprint, firmware assumptions and qualification grade.
Procurement checks for DS1307+
The recorded package is 8-pin PDIP, 300 mil, the temperature range is 0°C to +70°C, and the lifecycle status is Production as of 2026-07-20. Before ordering, confirm the exact MPN on the label, packing format, quantity, date-code requirements, traceability documents and current factory status.
DS1307+ FAQ
What distinguishes DS1307+ within the DS1307 family?
DS1307+ is the exact orderable code for a I²C real-time clock with battery backup, square-wave output and 56 bytes of NV SRAM in 8-pin PDIP, 300 mil. Related DS1307 devices may change package, rating, interface option or qualification grade, so compare the manufacturer ordering table before substitution.
What package and footprint checks are required for DS1307+?
DS1307+ is recorded in 8-pin PDIP, 300 mil with 8 pins, leads or contacts. Confirm the manufacturer package drawing, dimensions, pin numbering, exposed-pad requirements and packing suffix before releasing a PCB footprint.
Which specifications should be verified when selecting DS1307+?
Interface is recorded as I²C, Supply Voltage is recorded as 4.5 V to 5.5 V. Use the latest datasheet for minimum and maximum limits, test conditions, timing and absolute maximum ratings rather than relying only on a distributor summary.
What is the lifecycle status of DS1307+?
DS1307+ was recorded as Production when verified on 2026-07-20. Reconfirm factory status, revision availability, lead time and any last-time-buy notice before design-in or volume procurement.
What information should be included in an RFQ for DS1307+?
Provide the complete DS1307+ orderable code, target quantity, acceptable date-code range, required packing method, delivery destination and documentation needs. For replacement work, also identify the existing package and any mandatory qualification grade.
Component comparisons
Compare DS1307+
Review verified specification differences, interface considerations and compatibility limits before selecting an alternative.
RTC engineering guides
Continue the RTC selection review
Use these editorial guides to review interface, oscillator, backup-power, package and order-code decisions.
Lifecycle and sourcing review
Lifecycle information is shown for reference. Confirm current manufacturer documentation, availability and technical suitability before purchase.
Confirm current factory lead time, packing format and revision for DS1307+ before placing the order.