| PartNumber | ISL1209IU10Z-TK | ISL1209IU10Z | ISL1209IU10 |
| Description | Real Time Clock I2CAL TIME CLK/CLNDR W/EVENT DETCT 10LD | Real Time Clock I2CAL TIME CLK/CLNDR W/EVENT DETCT 10LD | IC RTC EVENT REC I2C 10-MSOP |
| Manufacturer | Renesas Electronics | Renesas Electronics | Intersil |
| Product Category | Real Time Clock | Real Time Clock | Clock/Timing - Real Time Clocks |
| RoHS | Y | Y | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Package / Case | MSOP-10 | MSOP-10 | - |
| RTC Bus Interface | Serial, I2C | Serial, I2C | - |
| Date Format | DW:DM:M:Y | DW:DM:M:Y | YY-MM-DD-dd |
| Time Format | HH:MM:SS | HH:MM:SS | HH:MM:SS (12/24 hr) |
| Battery Backup Switching | Backup Switching | Backup Switching | - |
| RTC Memory Size | 2 B | 2 B | - |
| Supply Voltage Max | 5.5 V | 5.5 V | - |
| Supply Voltage Min | 2.7 V | 2.7 V | - |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 85 C | + 85 C | - |
| Packaging | Reel | Tube | Tube |
| Function | Alarm, Calendar, Clock | Alarm, Calendar, Clock | - |
| Height | 0.95 mm (Max) | 0.95 mm | - |
| Length | 3.05 mm (Max) | 3.05 mm | - |
| Product | Real Time Clocks | - | - |
| Series | ISL1209 | ISL1209 | - |
| Width | 3.05 mm (Max) | 3.05 mm | - |
| Brand | Renesas / Intersil | Renesas / Intersil | - |
| Moisture Sensitive | Yes | Yes | - |
| Product Type | Real Time Clock | Real Time Clocks | - |
| Factory Pack Quantity | 1000 | 80 | - |
| Subcategory | Clock & Timer ICs | Clock & Timer ICs | - |
| Unit Weight | 0.000917 oz | 0.000917 oz | - |
| Type | - | - | Time Event Recorder |
| Package Case | - | - | 10-TFSOP, 10-MSOP (0.118", 3.00mm Width) |
| Operating Temperature | - | - | -40°C ~ 85°C |
| Mounting Type | - | - | Surface Mount |
| Features | - | - | Alarm, Leap Year, SRAM |
| Interface | - | - | I2C, 2-Wire Serial |
| Voltage Supply | - | - | 2.7 V ~ 5.5 V |
| Supplier Device Package | - | - | 10-MSOP |
| Memory Size | - | - | 2B |
| Voltage Supply Battery | - | - | 1.8 V ~ 5.5 V |
| Current Timekeeping Max | - | - | 4μA ~ 6μA @ 3V ~ 5V |