DS1391U-33
IC RTC CLK/CALENDAR SPI 10UMAXManufacturer: Analog Devices Inc./Maxim Integrated
Categories: Real Time Clocks
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Analog Devices Inc./Maxim Integrated DS1391U-33 is a Real-Time Clock (RTC) IC featuring a Clock/Calendar function with an SPI interface. This component is housed in a 10-pin uMAX/uSOP package (10-TFSOP, 10-MSOP with 3.00mm width) suitable for surface mounting. It operates across a voltage range of 2.97V to 5.5V, with a battery voltage input capability from 1.3V to 5.5V. Key features include alarm functionality, leap year compensation, square wave output, and a trickle-charger input for battery backup. The timekeeping current draw is a maximum of 175µA at 2.97V to 5.5V. It supports both HH:MM:SS:hh (12/24 hr) time formats and YY-MM-DD-dd date formats. Operating temperatures range from -40°C to 85°C. This device finds application in industrial control and consumer electronics.
Additional Information
Series: -RoHS Status: ROHS3 CompliantManufacturer Lead Time: No lead time information availableProduct Status: ObsoletePackaging: TubeDatasheet:Download Free CAD Model:
Technical Details:
| Features | Alarm, Leap Year, Square Wave Output, Trickle-Charger |
| Packaging | Tube |
| Package / Case | 10-TFSOP, 10-MSOP (0.118"", 3.00mm Width) |
| Mounting Type | Surface Mount |
| Memory Size | - |
| Interface | SPI |
| Type | Clock/Calendar |
| Operating Temperature | -40°C ~ 85°C |
| Voltage - Supply | 2.97V ~ 5.5V |
| Time Format | HH:MM:SS:hh (12/24 hr) |
| Date Format | YY-MM-DD-dd |
| Supplier Device Package | 10-uMAX/uSOP |
| Voltage - Supply, Battery | 1.3V ~ 5.5V |
| Current - Timekeeping (Max) | 175µA @ 2.97V ~ 5.5V |
| Programmable | Not Verified |
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