| PartNumber | DS1500YE | DS1500YEN | DS1500YE+ |
| Description | IC RTC CLK/CALENDAR PAR 32-TSOP | IC RTC CLK/CALENDAR PAR 32-TSOP | Real Time Clock Y2K-Compliant Watchdog |
| Manufacturer | Maxim Integrated | Maxim Integrated | Maxim Integrated |
| Product Category | Clock/Timing - Real Time Clocks | Clock/Timing - Real Time Clocks | Clock/Timing - Real Time Clocks |
| Series | - | - | - |
| Type | Clock/Calendar | Clock/Calendar | Clock/Calendar |
| Packaging | Tray | Tray | Tray |
| Package Case | 32-LFSOP (0.724", 18.40mm Width) | 32-LFSOP (0.724", 18.40mm Width) | 32-LFSOP (0.724", 18.40mm Width) |
| Operating Temperature | 0°C ~ 70°C | -40°C ~ 85°C | 0°C ~ 70°C |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount |
| Features | Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K | Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K | Alarm, Leap Year, NVSRAM, Square Wave Output, Watchdog Timer, Y2K |
| Interface | Parallel | Parallel | Parallel |
| Voltage Supply | 4.5 V ~ 5.5 V | 4.5 V ~ 5.5 V | 4.5 V ~ 5.5 V |
| Supplier Device Package | 32-TSOP | 32-TSOP | 32-TSOP |
| Memory Size | 256B | 256B | 256B |
| Time Format | HH:MM:SS (24 hr) | HH:MM:SS (24 hr) | HH:MM:SS (24 hr) |
| Date Format | YY-MM-DD-dd | YY-MM-DD-dd | YY-MM-DD-dd |
| Voltage Supply Battery | 2.5 V ~ 3.7 V | 2.5 V ~ 3.7 V | 2.5 V ~ 3.7 V |
| Current Timekeeping Max | 5mA @ 4.5V ~ 5.5V | 5mA @ 4.5V ~ 5.5V | 5mA @ 4.5V ~ 5.5V |