DS1308U-3+ by Analog Devices
Low-Current I²C RTC with 56-Byte NV RAM
| Status: | Active |
|---|---|
| Series: | DS1308 |
| RoHS: | Unknown |
Features
| Compatible with Crystal ESR Up to 100kΩ Allows a Crystal to be Optimized for Cost and Space |
| Low-Power Operation Extends Battery Backup Run Time Low Timekeeping Current of 250nA (typ) Automatic Power-Fail Detect and Switch Circuitry |
| Low Timekeeping Current of 250nA (typ) |
| Automatic Power-Fail Detect and Switch Circuitry |
| Completely Manages All Timekeeping Functions 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 2400 External Clock Source for Synchronization Clock Reference (e.g., 32kHz, 50Hz/60Hz Powerline, GPS 1PPS) 56-Byte, Battery-Backed, General-Purpose RAM with Unlimited Writes Programmable Square-Wave Output Signal |
| 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 2400 |
| External Clock Source for Synchronization Clock Reference (e.g., 32kHz, 50Hz/60Hz Powerline, GPS 1PPS) |
| 56-Byte, Battery-Backed, General-Purpose RAM with Unlimited Writes |
| Programmable Square-Wave Output Signal |
| Simple Serial Port Interfaces with Most Microcontrollers I2C Serial Interface |
| I2C Serial Interface |
| Industrial Temperature Range: -40°C to +85°C Supports Operation in a Wide Range of Applications |
| Underwriters Laboratories (UL®) Recognized |
Specifications
| Interface | I2C |
|---|---|
| VSUPPLY (V) | 1.71 to 5.5 |
| Date/ Time Format (hh = sec/100) | YY-MM-DD/ HH:MM:SS |
| Time Keeping Current (nA) (typ) | 250 |
| CL (pF) | 6 |
| Memory Type | NV SRAM |
| Memory Size (Bytes) | 56 |
| Time of Day Alarms | 0 |
| Package/Pins | UMAX/8 |
| BudgetaryPrice (See Notes) | 1.91 |
Last 6 months Inventory & Pricing History
DS1308U-3+ Semiconductors - ICs by Analog Devices
RTC I2C SERIAL 5.5V USOP-8
| Status: | Unknown |
|---|---|
| Series: | - |
| RoHS: | Unknown |
Specifications
| Date Format | Day |
|---|---|
| Clock Format | HH |
| Clock IC Type | RTC |
| Supply Voltage Min | 2.7V |
| Supply Voltage Max | 5.5V |
| Clock IC Case Style | µSOP |
| No. of Pins | 8Pins |
| IC Interface Type | I2C |
| Operating Temperature Min | -40°C |
| Operating Temperature Max | 85°C |
| Product Range | - |
| Automotive Qualification Standard | - |
| MSL | MSL 1 - Unlimited |
| SVHC | No SVHC (15-Jan-2018) |
Last 6 months Inventory & Pricing History
Alternative Descriptions
| Rtc, I2C, Serial, 5.5V, Usop-8 | Newark Electronics |
| RTC, I2C, SERIAL, 5.5V, USOP-8 | element14 |
Frequently Asked Questions
Where can I find additional details, specifications and documents for a DS1308U-3+ ?
Additional datasheets, footprints and schematics for DS1308U-3+ are listed on our Part Details page. You can also find images and similar parts to DS1308U-3+ on this page.
What pricing and inventory information can I view?
Distributor pricing and stock information is available for DS1308U-3+ on our Product Comparison page. Access via the 'View Pricing & Stock' button to view DS1308U-3+ price breaks, MOQs, lead times, inventory and SKUs from distributors.
Who can I contact for technical support of the product?
Submit any questions directly to the customer support team of the distributor listing the product. For the DS1308U-3+ you can contact the distributor directly for product support, shipping queries etc.
Is the DS1308U-3+ RoHS compliant?
This part has not been flagged as RoHS Compliant.
Which authorised distributors for DS1308U-3+ have stock available?
Authorised distributors including Newark Electronics, element14 and Farnell have stock available or on a lead time for DS1308U-3+ .
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