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| Part Number | DS1337+ | DS1337U+ | DS1337S+ | DS1337S | DS1337U | DS1337C | DS1307+ | DS1337 |
|---|---|---|---|---|---|---|---|---|
| Manufacturer | Analog Devices Inc./Maxim Integrated | Analog Devices Inc./Maxim Integrated | Analog Devices Inc./Maxim Integrated | Analog Devices Inc./Maxim Integrated | Analog Devices Inc./Maxim Integrated | Analog Devices Inc./Maxim Integrated | Analog Devices Inc./Maxim Integrated | Analog Devices Inc./Maxim Integrated |
| Product Status | Active | Active | Active | Obsolete | Obsolete | Obsolete | Active | Obsolete |
| Type | Clock/Calendar | Clock/Calendar | Clock/Calendar | Clock/Calendar | Clock/Calendar | Clock/Calendar | Clock/Calendar | Clock/Calendar |
| Features | Alarm, Leap Year, Square Wave Output | Alarm, Leap Year, Square Wave Output | Alarm, Leap Year, Square Wave Output | Alarm, Leap Year, Square Wave Output | Alarm, Leap Year, Square Wave Output | Alarm, Leap Year, Square Wave Output | Leap Year, NVSRAM, Square Wave Output | Alarm, Leap Year, Square Wave Output |
| Memory Size | - | - | - | - | - | - | 56B | - |
| Time Format | HH:MM:SS (12/24 hr) | HH:MM:SS (12/24 hr) | HH:MM:SS (12/24 hr) | HH:MM:SS (12/24 hr) | HH:MM:SS (12/24 hr) | HH:MM:SS (12/24 hr) | HH:MM:SS (12/24 hr) | HH:MM:SS (12/24 hr) |
| Date Format | YY-MM-DD-dd | YY-MM-DD-dd | YY-MM-DD-dd | YY-MM-DD-dd | YY-MM-DD-dd | YY-MM-DD-dd | YY-MM-DD-dd | YY-MM-DD-dd |
| Interface | I²C, 2-Wire Serial | I²C, 2-Wire Serial | I²C, 2-Wire Serial | I²C, 2-Wire Serial | I²C, 2-Wire Serial | I²C, 2-Wire Serial | I²C, 2-Wire Serial | I²C, 2-Wire Serial |
| Voltage - Supply | 1.8V ~ 5.5V | 1.8V ~ 5.5V | 1.8V ~ 5.5V | 1.8V ~ 5.5V | 1.8V ~ 5.5V | 1.8V ~ 5.5V | 4.5V ~ 5.5V | 1.8V ~ 5.5V |
| Voltage - Supply, Battery | - | - | - | - | - | - | 2V ~ 3.5V | - |
| Current - Timekeeping (Max) | 0.6µA @ 1.3V ~ 1.8V | 0.6µA @ 1.3V ~ 1.8V | 0.6µA @ 1.3V ~ 1.8V | 0.6µA @ 1.3V ~ 1.8V | 0.6µA @ 1.3V ~ 1.8V | 0.6µA @ 1.3V ~ 1.8V | 200µA @ 5V | 0.6µA @ 1.3V ~ 1.8V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C | 0°C ~ 70°C | -40°C ~ 85°C |
| Mounting Type | Through Hole | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Through Hole | Through Hole |
| Package / Case | 8-DIP (0.300", 7.62mm) | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-TSSOP, 8-MSOP (0.118", 3.00mm Width) | 16-SOIC (0.295", 7.50mm Width) | 8-DIP (0.300", 7.62mm) | 8-DIP (0.300", 7.62mm) |
| Supplier Device Package | 8-PDIP | 8-uMAX/uSOP | 8-SOIC | 8-SOIC | 8-uMAX/uSOP | 16-SOIC | 8-PDIP | 8-PDIP |
