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Product Index > Integrated Circuits (ICs) > Clock/Timing - Real Time Clocks > Maxim Integrated DS1302S+T&R

All prices are in US dollars.
Digi-Key Part NumberDS1302S+T&RTR-ND
Price BreakUnit PriceExtended Price
Quantity Available Digi-Key Stock: 4,000
Can ship immediately

Manufacturer Part Number


Lead Free Status / RoHS StatusLead free / RoHS Compliant

QuantityItem Number  ? Customer Reference
DS1302S+T&R Maxim Integrated | DS1302S+T&RTR-ND DigiKey Electronics

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Datasheets DS1302
Product Photos 8-SOIC
Mfg Application Notes Crystal Considerations with Maxim Real-Time Clocks (RTCs)
Using the Dallas Tricklecharge Timekeeper
Using the Dallas Tricklecharge Timekeeper
Design Considerations for Maxim Real-Time Clocks
Lithium Coin-Cell Batteries: Predicting an Application Lifetime
Using the DS32kHz with Maxim Real-Time Clocks
Interfacing a DS1302 With an 8051-Type Microcontroller
Estimating Super Capacitor Backup Time on Trickle-Charger Real-Time Clocks
Selecting a Backup Source for Real-Time Clocks
Oscillator Design Considerations for Low-Current Applications
State Machine Logic in Binary-Coded Decimal (BCD)-Formatted Real-Time Clocks
Product Training Modules Lead (SnPb) Finish for COTS
Long-Term Supply Program
Featured Product DS1302 Trickle-Charge Timekeeping Chip
Standard Package ? 2,000

Integrated Circuits (ICs)


Clock/Timing - Real Time Clocks

Packaging ? Tape & Reel (TR) ? 
FeaturesLeap Year, NVSRAM, Trickle-Charger
Memory Size31B
Time FormatHH:MM:SS (12/24 hr)
Date FormatYY-MM-DD-dd
Interface3-Wire Serial
Voltage - Supply2 V ~ 5.5 V
Voltage - Supply, Battery2 V ~ 5.5 V
Current - Timekeeping (Max)0.3µA ~ 1µA @ 2V ~ 5V
Operating Temperature0°C ~ 70°C
Mounting TypeSurface Mount
Package / Case8-SOIC (0.209", 5.30mm Width)
Supplier Device Package8-SO
Online CatalogSerial Address
Other NamesDS1302S+T&R-ND
Alternate Package | This part is also available in the following packaging:
Digi-Key Part NumberManufacturer Part NumberManufacturerPackagingQuantity AvailableUnit PriceMinimum Quantity
DS1302S+-NDDS1302S+Maxim IntegratedTube ? 1,292 - Immediate
DS1302S+T&RCT-NDDS1302S+T&RMaxim IntegratedCut Tape (CT) ? 5,135 - Immediate
DS1302S+T&RDKR-NDDS1302S+T&RMaxim IntegratedDigi-Reel® ? 5,135 - Immediate

Tape & Reel, Cut Tape and Digi-Reels are all derived from the same manufacturer’s part number. Inventory from Tape & Reel is used to fulfill Cut Tape and Digi-Reel orders and will impact the total quantity available.

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1:22:14 3/29/2015