| Part Number | DS1302Z | DS1302ZN | 
|---|---|---|
| Manufacturer | Analog Devices Inc./Maxim Integrated | Analog Devices Inc./Maxim Integrated | 
| Category | Clock/Timing - Real Time Clocks | Clock/Timing - Real Time Clocks | 
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| Product Status | Obsolete | Obsolete | 
| Type | Clock/Calendar | Clock/Calendar | 
| Features | Leap Year, NVSRAM, Trickle-Charger | Leap Year, NVSRAM, Trickle-Charger | 
| Memory Size | 31B | 31B | 
| Time Format | HH:MM:SS (12/24 hr) | HH:MM:SS (12/24 hr) | 
| Date Format | YY-MM-DD-dd | YY-MM-DD-dd | 
| Interface | 3-Wire Serial | 3-Wire Serial | 
| Voltage - Supply | 2V ~ 5.5V | 2V ~ 5.5V | 
| Voltage - Supply, Battery | 2V ~ 5.5V | 2V ~ 5.5V | 
| Current - Timekeeping (Max) | 0.3µA ~ 1µA @ 2V ~ 5V | 0.3µA ~ 1µA @ 2V ~ 5V | 
| Operating Temperature | 0°C ~ 70°C | -40°C ~ 85°C | 
| Mounting Type | Surface Mount | Surface Mount | 
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | 8-SOIC (0.154", 3.90mm Width) | 
| Supplier Device Package | 8-SOIC | 8-SOIC |