DS1338U-3
- 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
- 8,005
- In Stock :
- 8,005
Request A Quote(RFQ)
- * Fullname:
- * Company:
- * E-Mail:
- Phone:
- Comment:
- * Quantity:
- Manufacturer :
- Analog Devices, Inc.
- Product Category :
- Real Time Clocks
- Time-Min :
- SECONDS
- Mount :
- Surface Mount
- Width :
- 3.1mm
- Operating Supply Voltage :
- 3V
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Packaging :
- Tube
- Number of Pins :
- 8
- Contact Plating :
- Tin
- Pin Count :
- 8
- ECCN Code :
- EAR99
- Volatile :
- No
- Time Format :
- HH:MM:SS (12/24 hr)
- Terminal Pitch :
- 0.65mm
- Interrupt Capability :
- N
- Type :
- Clock/Calendar
- Package / Case :
- 8-TSSOP, 8-MSOP (0.118, 3.00mm Width)
- Length :
- 3.1mm
- Date Format :
- YY-MM-DD-dd
- Memory Size :
- 56b
- Operating Temperature :
- -40°C~85°C
- Number of Timers :
- 1
- Mounting Type :
- Surface Mount
- Time@Peak Reflow Temperature-Max (s) :
- 30
- Published :
- 2006
- Factory Lead Time :
- 6 Weeks
- Peak Reflow Temperature (Cel) :
- 260
- Lead Free :
- Lead Free
- Base Part Number :
- DS1338
- Supply Voltage :
- 3V
- REACH SVHC :
- Unknown
- Information Access Method :
- I2C
- Power Supplies :
- 3V
- Height :
- 950μm
- Radiation Hardening :
- No
- Clock Frequency :
- 0.032MHz
- Number of Terminations :
- 8
- Logic Function :
- Clock
- Terminal Position :
- Dual
- Feature :
- Leap Year, NVSRAM, Square Wave Output
- Interface :
- I2C, 2-Wire Serial
- Voltage - Supply :
- 2.7V~5.5V
- JESD-609 Code :
- e3
- RoHS Status :
- ROHS3 Compliant
- Current - Timekeeping (Max) :
- 200μA @ 3.3V
- Voltage - Supply, Battery :
- 1.3V~3.7V
- Pbfree Code :
- yes
- Datasheets
- DS1338U-3

Real Time Clocks Analog Devices, Inc. DS1338U-3 Overview
The Real Time Clocks Analog Devices, Inc. DS1338U-3 is a highly integrated, low-power real time clock/calendar optimized for power sensitive applications. This device offers a full binary-coded decimal (BCD) clock/calendar plus 56 bytes of NV SRAM. Address and data are transferred serially via a two-wire, bi-directional I2C interface. The clock/calendar provides seconds, minutes, hours, day, date, month, and year information. The end of the month date is automatically adjusted for months with fewer than 31 days, including corrections for leap year. The clock operates in either the 24-hour or 12-hour format with AM/PM indicator. Its compact 8-USOP packaging makes it ideal for space-constrained applications.
DS1338U-3 Features
- Fully accessible real-time clock/calendar
- 56 bytes of NV SRAM for data storage
- Two-wire I2C interface for simple integration into existing systems
- Automatic leap year compensation valid up to 2100
- Low power consumption suitable for battery-backed applications
- Compact 8-pin USOP package for minimal footprint
DS1338U-3 Applications
- Consumer Electronics: Used in devices such as smart watches, digital clocks and smart home devices to keep accurate time even when the main power is turned off.
- Telecommunication Systems: Ensures timekeeping accuracy in systems requiring clock synchronization like network switches and routers.
- Industrial Systems: Useful in time-sensitive industrial applications like time-stamped data collection and event scheduling.
- Portable Medical Devices: Maintains clock accuracy in medical devices such as wearable health monitors and portable medical instrumentation.
- Automotive: Can be used in automotive electronic systems to provide reliable timekeeping and system wake-up alarms.
You may place an order without registering to Chip IC. We strongly recommend that you log in before purchasing as you can track your order at any time.
RFQ (Request for Quotations)It is recommended to send RFQ to get the latest prices and stock availability about the part.Our sales will reply to your inquiry within 24 hours.
Payment MethodFor your convenience, we accept multiple payment methods in USD, Such as:PayPal, Credit Card, and wire transfer.
IMPORTANT NOTICEYou may place an order without registering to 1. You'll receive an order confirmations by e-mail soon . (Please remember to check the spam box if you didn't hear from us). 2. Since stock availability and prices may change at any time, the sales will reconfirm the order details and update you at soonest time.
Most of our products are shipped via FEDEX,DHL,UPS and SF EXPRESS...
Shipping CostShipping Cost starts at $40, but some countries will exceed $40. For example (South Africa, Brazil, India, Pakistan, Israel, etc.).If customer have shipping account, we can make shipment under customer’s shipping account with freight collect directly.
The basic freight (for package ≤0.5 KG ) depends on the time zones and countries
Once the goods are shipped, estimated delivery time depends on the shipping methods you chose. You can track it by the tracking no.
















