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| PartNumber | DS1501WE | DS1501WE+T | DS1501WE+TR |
| Description | Real Time Clock Y2K-Compliant Watchdog | ||
| Manufacturer | Maxim Integrated | Maxim Integrated | - |
| Product Category | Real Time Clock | Clock/Timing - Real Time Clocks | - |
| Mounting Style | SMD/SMT | - | - |
| Package / Case | TSOP | - | - |
| RTC Bus Interface | Parallel | - | - |
| Time Format | HH:MM:SS | HH:MM:SS (24 hr) | - |
| RTC Memory Size | 256 B | - | - |
| Supply Voltage Max | 3.6 V | - | - |
| Supply Voltage Min | 3 V | - | - |
| Minimum Operating Temperature | 0 C | - | - |
| Maximum Operating Temperature | + 70 C | - | - |
| Packaging | Bulk | Tape & Reel (TR) Alternate Packaging | - |
| Function | Alarm, Calendar, Clock, Watchdog Timekeeper | - | - |
| Series | DS1501WE | - | - |
| Brand | Maxim Integrated | - | - |
| Moisture Sensitive | Yes | - | - |
| Product Type | Real Time Clocks | - | - |
| Factory Pack Quantity | 234 | - | - |
| Subcategory | Clock & Timer ICs | - | - |
| Unit Weight | 0.000705 oz | - | - |
| Type | - | Clock/Calendar | - |
| Package Case | - | 28-TSSOP (0.465", 11.80mm Width) | - |
| Operating Temperature | - | 0°C ~ 70°C | - |
| Mounting Type | - | Surface Mount | - |
| Features | - | Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K | - |
| Interface | - | Parallel | - |
| Voltage Supply | - | 3 V ~ 3.6 V | - |
| Supplier Device Package | - | 28-TSOP | - |
| Memory Size | - | 256B | - |
| Date Format | - | YY-MM-DD-dd | - |
| Voltage Supply Battery | - | 2.5 V ~ 3.7 V | - |
| Current Timekeeping Max | - | 4mA @ 3V ~ 3.6V | - |