DS1337+
low-power I2C serial real-time clock with two time-of-day alarms and programmable square-wave output
Key details
| Part Number | DS1337+ |
|---|---|
| Manufacturer | Analog Devices |
| Category | Real-Time Clock |
| Lifecycle Status | Production |
| Series | DS1337 |
| Package / Case | 8-pin PDIP, 300 mil |
| Pin Count | 8 |
| Operating Temperature | -40°C to +85°C |
| Last Verified | 2026-07-26 |
Part information
DS1337+ Overview
DS1337+ is a Analog Devices low-power I2C serial real-time clock with two time-of-day alarms and programmable square-wave output 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
| Timekeeping Accuracy | External 32.768 kHz crystal dependent |
|---|---|
| Serial Interface | I2C up to 400 kHz |
| Supply Voltage | 1.8 V to 5.5 V interface operation |
| Battery Backup | Supported |
| User Memory | No user SRAM |
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 as Production at the verification date.
Sourcing Guidance
Confirm current factory lead time, revision, temperature grade and packing format for DS1337+ before ordering.
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 documentation. Use the linked datasheet as the controlling source and re-check revisions before PCB release or firmware qualification.
DS1337+ FAQ
What is DS1337+?
DS1337+ is a Analog Devices low-power I2C serial real-time clock with two time-of-day alarms and programmable square-wave output. It belongs to the DS1337 family.
What are the key specifications of DS1337+?
Timekeeping Accuracy is External 32.768 kHz crystal dependent, while Serial Interface is I2C up to 400 kHz. Check the manufacturer datasheet for revision-controlled limits and test conditions.
What package does DS1337+ use?
DS1337+ is supplied in 8-pin PDIP, 300 mil with 8 pins, leads or contacts. Verify the exact footprint and ordering suffix before PCB release.
Is DS1337+ still in production?
DS1337+ was listed by Analog Devices as Production when checked on 2026-07-26. Confirm the current factory status, revision, packing format and lead time before ordering.
What should be checked before sourcing DS1337+?
Confirm the complete MPN, lifecycle, package, temperature grade and packing format. Do not treat a similar family code as a drop-in replacement without checking the datasheet.
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, revision, temperature grade and packing format for DS1337+ before ordering.