DS1338U-3+
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- Mfr.Part #
- DS1338U-3+
- Manufacturer
- Analog Devices, Inc.
- Package / Case
- 8-TSSOP, 8-MSOP (0.118, 3.00mm Width)
- Datasheet
- Download
- Description
- IC RTC CLK/CALENDAR I2C 8-USOP
- Stock
- 4
- In Stock ：
- 4
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- Manufacturer :
- Analog Devices, Inc.
- Product Category :
- Real Time Clocks
- Package / Case :
- 8-TSSOP, 8-MSOP (0.118, 3.00mm Width)
- Pbfree Code :
- yes
- Radiation Hardening :
- No
- Published :
- 2006
- Number of Pins :
- 8
- Packaging :
- Tube
- Peak Reflow Temperature (Cel) :
- 260
- Feature :
- Leap Year, NVSRAM, Square Wave Output
- Contact Plating :
- Tin
- Type :
- Clock/Calendar
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Date Format :
- YY-MM-DD-dd
- Base Part Number :
- DS1338
- Power Supplies :
- 3V
- Number of Timers :
- 1
- Volatile :
- No
- Clock Frequency :
- 0.032MHz
- Time Format :
- HH:MM:SS (12/24 hr)
- JESD-609 Code :
- e3
- RoHS Status :
- ROHS3 Compliant
- Mounting Type :
- Surface Mount
- Number of Terminations :
- 8
- Memory Size :
- 56b
- Interface :
- I2C, 2-Wire Serial
- Terminal Pitch :
- 0.65mm
- Time-Min :
- SECONDS
- Information Access Method :
- I2C
- Operating Temperature :
- -40°C~85°C
- Logic Function :
- Clock
- Current - Timekeeping (Max) :
- 200μA @ 3.3V
- Mount :
- Surface Mount
- ECCN Code :
- EAR99
- Pin Count :
- 8
- Length :
- 3.1mm
- Operating Supply Voltage :
- 3V
- Width :
- 3.1mm
- Voltage - Supply, Battery :
- 1.3V~3.7V
- Voltage - Supply :
- 2.7V~5.5V
- Time@Peak Reflow Temperature-Max (s) :
- 30
- Supply Voltage :
- 3V
- REACH SVHC :
- Unknown
- Height :
- 950μm
- Lead Free :
- Lead Free
- Factory Lead Time :
- 6 Weeks
- Terminal Position :
- Dual
- Interrupt Capability :
- N
- Datasheets
- DS1338U-3+
Real Time Clocks Analog Devices, Inc. DS1338U-3+ Overview
The DS1338U-3+ from Analog Devices, Inc. is a highly reliable integrated circuit specifically designed for real-time clock (RTC) applications. This component provides a full binary-coded decimal (BCD) clock/calendar with 56 bytes of NV SRAM. Accuracy and reliability are ensured with an integrated temperature-compensated crystal oscillator (TCXO) and a built-in power-sense circuit that automatically switches to backup supply during power failures, preserving timekeeping with minimal external components. This feature makes the DS1338U-3+ an essential choice for applications requiring precise timekeeping and data retention under variable environmental conditions.
DS1338U-3+ Features
The DS1338U-3+ offers several features that enhance its utility in sophisticated electronic systems:
- I2C interface for simple integration into existing bus systems.
- Low power consumption with an operating voltage from 2.0 to 5.5 volts, suitable for battery-operated applications.
- 56 bytes of non-volatile SRAM enable data storage without additional backup power.
- Automatic power-fail detect and switch circuitry ensures seamless transition to backup power.
- Compact 8-pin USOP package allows for integration into space-constrained designs.
DS1338U-3+ Applications
- Consumer Electronics: Used in devices like digital cameras, smart watches, and home automation systems, the DS1338U-3+ maintains accurate time and date functionality even during power losses.
- Telecommunications: Essential for time-stamping in data logging systems, network hardware, and communication equipment to ensure continuity and accuracy of operational data.
- Industrial Systems: In factory automation and industrial timekeeping, this IC provides reliable time bases for logging events, coordinating operations, and scheduling maintenance.
- Portable Devices: Implements RTC functions in portable medical devices and handheld instruments, ensuring that all recorded data is accurately timestamped and systems remain in sync.
- Automotive: Utilized in vehicle telematics systems to maintain accurate timing, improving logging and tracking accuracy crucial for fleet management and navigation systems.
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