DS1308U-33+
- Mfr.Part #
- DS1308U-33+
- Manufacturer
- Analog Devices, Inc.
- Package / Case
- 8-TSSOP, 8-MSOP (0.118, 3.00mm Width)
- Datasheet
- Download
- Description
- IC RTC CLK/CALENDAR I2C 8-UMAX
- Stock
- 270
- In Stock :
- 270
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- Manufacturer :
- Analog Devices, Inc.
- Product Category :
- Real Time Clocks
- Voltage - Supply :
- 3V~5.5V
- Peak Reflow Temperature (Cel) :
- 260
- Package / Case :
- 8-TSSOP, 8-MSOP (0.118, 3.00mm Width)
- Date Format :
- YY-MM-DD-dd
- Current - Timekeeping (Max) :
- 125μA~200μA @ 3V~5.5V
- Mount :
- Surface Mount
- Terminal Position :
- Dual
- Number of Pins :
- 8
- Pbfree Code :
- yes
- Terminal Pitch :
- 0.65mm
- Width :
- 3mm
- REACH SVHC :
- Unknown
- Contact Plating :
- Tin
- ECCN Code :
- EAR99
- Clock Frequency :
- 0.032MHz
- Time@Peak Reflow Temperature-Max (s) :
- 30
- Pin Count :
- 8
- Voltage - Supply, Battery :
- 1.3V~5.5V
- Number of Terminations :
- 8
- Base Part Number :
- DS1308
- Information Access Method :
- I2C
- Height Seated (Max) :
- 1.1mm
- Interrupt Capability :
- N
- Logic Function :
- Clock
- Time Format :
- HH:MM:SS (12/24 hr)
- Interface :
- I2C, 2-Wire Serial
- Type :
- Clock/Calendar
- Operating Temperature :
- -40°C~85°C
- Supply Voltage :
- 3.3V
- RoHS Status :
- ROHS3 Compliant
- Memory Size :
- 56b
- Length :
- 3mm
- Power Supplies :
- 3.3/5V
- JESD-609 Code :
- e3
- Radiation Hardening :
- No
- Operating Supply Voltage :
- 3.3V
- Time-Min :
- SECONDS
- Factory Lead Time :
- 6 Weeks
- Feature :
- Leap Year, NVSRAM, Square Wave Output
- Volatile :
- No
- Published :
- 2013
- Mounting Type :
- Surface Mount
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Packaging :
- Tube
- Terminal Finish :
- Tin
- Datasheets
- DS1308U-33+

Real Time Clocks Analog Devices, Inc. DS1308U-33+ Overview
The DS1308U-33+ from Analog Devices, Inc. is an integrated circuit specifically designed for real-time clock (RTC) and calendar functionalities. This high-performance device ensures accurate timekeeping and is ideal for applications requiring reliable time and date management. Embedded in a compact 8-UMAX package, it communicates via an I2C interface, offering simplicity and ease of integration into various systems. Its robust design and low power consumption make the DS1308U-33+ a premier choice for developers and manufacturers looking to incorporate precise timing features into their applications.
DS1308U-33+ Features
The DS1308U-33+ real-time clock features several key functionalities that enhance its reliability and usability in professional environments. These include a built-in power-sense circuit, which allows for automatic switching to backup power, and an oscillator stop flag to detect any clock interruptions. The device supports a wide voltage range, ensuring flexibility across different power supplies. Additionally, its programmability via I2C interface allows for easy integration and customization in complex systems.
DS1308U-33+ Applications
- Consumer Electronics: Utilized in devices such as smart watches, clocks, and home automation systems, where accurate timekeeping is crucial.
- Enterprise IT Equipment: Ensures accurate log timestamps in networking hardware, servers, and other critical IT infrastructure.
- Industrial Systems: Used in time-sensitive control and monitoring systems where precise synchronization is required for operation efficiency.
- Portable Medical Devices: Provides reliable time management to enhance the functionality and reliability of portable medical devices like glucometers and wearable health monitors.
- Automotive Electronics: Supports timing functions in dashboard electronics and navigation systems, ensuring accurate time display and system operation.
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