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| Part Number | DS1691 | DS1693 |
|---|---|---|
| Manufacturer | Analog Devices Inc./Maxim Integrated | Analog Devices Inc./Maxim Integrated |
| Product Status | Obsolete | Obsolete |
| Type | Clock/Calendar | Clock/Calendar |
| Features | Alarm, Leap Year, Square Wave Output, Unique ID | NVSRAM |
| Memory Size | 114B | 114B |
| Time Format | HH:MM:SS (12/24 hr) | HH:MM:SS (12/24 hr) |
| Date Format | YY-MM-DD | YY-MM-DD-dd |
| Interface | Parallel | Parallel |
| Voltage - Supply | 2.7V ~ 3.3V, 4.5V ~ 5.5V | 2.7V ~ 3.3V, 4.5V ~ 5.5V |
| Voltage - Supply, Battery | - | 2.5V ~ 3.7V |
| Current - Timekeeping (Max) | - | 2mA @ 3V, 3mA @ 5V |
| Operating Temperature | 0°C ~ 70°C | 0°C ~ 70°C |
| Mounting Type | Through Hole | Through Hole |
| Package / Case | 28-DIP Module (0.600", 15.24mm) | 28-DIP Module (0.600", 15.24mm) |
| Supplier Device Package | 28-EDIP | 28-EDIP |
