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See Product Specifications
| Part Number: | DS1308U-33+ | 
| Category: | Integrated Circuits (ICs) | 
| Subcategory: | Clock/Timing - Real Time Clocks | 
| Manufacturer: | Analog Devices Inc./Maxim Integrated | 
| Packaging: | Tube | 
| Product Status: | Active | 
| Type: | Clock/Calendar | 
| Features: | Leap Year, NVSRAM, Square Wave Output | 
| Memory Size: | 56B | 
| Time Format: | HH:MM:SS (12/24 hr) | 
| Date Format: | YY-MM-DD-dd | 
| Interface: | I²C, 2-Wire Serial | 
| Voltage - Supply: | 3V ~ 5.5V | 
| Voltage - Supply, Battery: | 1.3V ~ 5.5V | 
| Current - Timekeeping (Max): | 125µA ~ 200µA @ 3V ~ 5.5V | 
| Operating Temperature: | -40°C ~ 85°C | 
| Mounting Type: | Surface Mount | 
| Package / Case: | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) | 
| Supplier Device Package: | 8-uMAX/uSOP |