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| Part Number | DS1670S+ | DS1678S+ | DS1670E+ | DS1670S |
|---|---|---|---|---|
| Manufacturer | 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 |
| Type | Portable System Controller | Time Event Recorder | Portable System Controller | Portable System Controller |
| Features | Alarm, Leap Year, Watchdog Timer | Alarm, Leap Year, NVSRAM, Y2K | Alarm, Leap Year, Watchdog Timer | Alarm, Leap Year, Watchdog Timer |
| Memory Size | - | 32B | - | - |
| 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 | 3-Wire Serial | I²C, 2-Wire Serial | 3-Wire Serial | 3-Wire Serial |
| Voltage - Supply | 2.97V ~ 3.63V | 4.5V ~ 5.5V | 2.97V ~ 3.63V | 2.97V ~ 3.63V |
| Voltage - Supply, Battery | 2.5V ~ 3.7V | 2.6V ~ 3.5V | 2.5V ~ 3.7V | 2.5V ~ 3.7V |
| Current - Timekeeping (Max) | 100µA @ 3.3V | - | 100µA @ 3.3V | 100µA @ 3.3V |
| Operating Temperature | 0°C ~ 70°C | -40°C ~ 85°C | 0°C ~ 70°C | 0°C ~ 70°C |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 20-SOIC (0.295", 7.50mm Width) | 8-SOIC (0.209", 5.30mm Width) | 20-TSSOP (0.173", 4.40mm Width) | 20-SOIC (0.295", 7.50mm Width) |
| Supplier Device Package | 20-SOIC | 8-SOIC | 20-TSSOP | 20-SOIC |
