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| Part Number | DS1307ZN+T&R | DS1307ZN/T&R | DS1302ZN+T&R | DS1307Z+T&R |
|---|---|---|---|---|
| Manufacturer | Analog Devices Inc./Maxim Integrated | Analog Devices Inc./Maxim Integrated | Analog Devices Inc./Maxim Integrated | Analog Devices Inc./Maxim Integrated |
| Product Status | Active | Obsolete | Active | Active |
| Type | Clock/Calendar | Clock/Calendar | Clock/Calendar | Clock/Calendar |
| Features | Leap Year, NVSRAM, Square Wave Output | Leap Year, NVSRAM, Square Wave Output | Leap Year, NVSRAM, Trickle-Charger | Leap Year, NVSRAM, Square Wave Output |
| Memory Size | 56B | 56B | 31B | 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) |
| Date Format | 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 | 3-Wire Serial | I²C, 2-Wire Serial |
| Voltage - Supply | 4.5V ~ 5.5V | 4.5V ~ 5.5V | 2V ~ 5.5V | 4.5V ~ 5.5V |
| Voltage - Supply, Battery | 2V ~ 3.5V | 2V ~ 3.5V | 2V ~ 5.5V | 2V ~ 3.5V |
| Current - Timekeeping (Max) | 200µA @ 5V | 200µA @ 5V | 0.3µA ~ 1µA @ 2V ~ 5V | 200µA @ 5V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C | -40°C ~ 85°C | 0°C ~ 70°C |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) |
| Supplier Device Package | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC |
