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| Part Number | DS1244W-120IND | DS1244WP-120IND | DS1248W-120IND | 
|---|---|---|---|
| Manufacturer | Analog Devices Inc./Maxim Integrated | Analog Devices Inc./Maxim Integrated | Analog Devices Inc./Maxim Integrated | 
| Product Status | Obsolete | Obsolete | Obsolete | 
| Type | Phantom Time Chip | Phantom Time Chip | Phantom Time Chip | 
| Features | Leap Year, NVSRAM | Leap Year, NVSRAM | NVSRAM | 
| Memory Size | 32KB | 32KB | 128KB | 
| Time Format | HH:MM:SS:hh (12/24 hr) | HH:MM:SS:hh (12/24 hr) | HH:MM:SS:hh (12/24 hr) | 
| Date Format | YY-MM-DD-dd | YY-MM-DD-dd | YY-MM-DD-dd | 
| Interface | Parallel | Parallel | Parallel | 
| Voltage - Supply | 2.97V ~ 3.63V | 2.97V ~ 3.63V | 2.97V ~ 3.63V | 
| Voltage - Supply, Battery | - | 3V | - | 
| Current - Timekeeping (Max) | 7mA @ 3.3V | 7mA @ 3.3V | 7mA @ 3.3V | 
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C | 
| Mounting Type | Through Hole | Surface Mount | Through Hole | 
| Package / Case | 28-DIP Module (0.600", 15.24mm) | 34-PowerCap™ Module | 32-DIP Module (0.600", 15.24mm) | 
| Supplier Device Package | 28-EDIP | 34-PowerCap Module | 32-EDIP |