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| Part Number | DS1685Q-3/T&R | DS1685Q-5/T&R | DS1685S-3/T&R | DS1685E-3/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 | Obsolete | Obsolete | Obsolete | Obsolete |
| Type | Real Time Clock (RTC) | Clock/Calendar | Real Time Clock (RTC) | Clock/Calendar |
| Features | - | Alarm, NVSRAM, Square Wave Output, Y2K | - | Alarm, NVSRAM, Square Wave Output, Y2K |
| Memory Size | 242B | 242B | 242B | 242B |
| Time Format | HH:MM:SS | HH:MM:SS (12/24 hr) | HH:MM:SS | HH:MM:SS (12/24 hr) |
| Date Format | YYYY-MM-DD | YY-MM-DD-dd | YYYY-MM-DD | YY-MM-DD-dd |
| Interface | Multiplexed | Parallel | Multiplexed | Parallel |
| Voltage - Supply | 3V | 4.5V ~ 5.5V | 3V | 2.7V ~ 3.7V |
| Voltage - Supply, Battery | - | 2.5V ~ 3.7V | - | 2.5V ~ 3.7V |
| Current - Timekeeping (Max) | - | 3mA @ 5V | - | 2mA @ 3V |
| Operating Temperature | 0°C ~ 70°C | 0°C ~ 70°C | 0°C ~ 70°C | 0°C ~ 70°C |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Package / Case | 28-LCC (J-Lead) | 28-LCC (J-Lead) | 24-SOIC (0.295", 7.50mm Width) | 24-TSSOP (0.173", 4.40mm Width) |
| Supplier Device Package | 28-PLCC (11.51x11.51) | 28-PLCC (11.51x11.51) | 24-SOIC | 24-TSSOP |
