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| PartNumber | ISL12057IBZ-T | ISL12057IBZ | ISL12057IRUZ-T |
| Description | Real Time Clock REAL TIME CLK W/ ALARM DS1337 COMP | Real Time Clock REAL TIME CLK W/ ALARM DS1337 COMP | Real Time Clock REAL TIME CLK W/ ALARM DS1337 COMP |
| 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 | SOIC-8 | SOIC-8 | - |
| 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 | No Backup Switching | No Backup Switching | - |
| Supply Voltage Max | 3.6 V | 3.6 V | - |
| Supply Voltage Min | 1.8 V | 1.8 V | - |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 85 C | + 85 C | - |
| Packaging | Reel | Tube | Cut Tape (CT) |
| Function | Alarm, Calendar, Clock, Interrupt | Alarm, Calendar, Clock, Interrupt | - |
| Height | 1.5 mm (Max) | 1.5 mm (Max) | - |
| Length | 5 mm (Max) | 5 mm (Max) | - |
| Product | Real Time Clocks | Real Time Clocks | - |
| Series | ISL12057 | ISL12057 | - |
| Type | Serial RTC | - | Clock/Calendar |
| Width | 4 mm (Max) | 4 mm (Max) | - |
| Brand | Renesas / Intersil | Renesas / Intersil | - |
| Moisture Sensitive | Yes | Yes | - |
| Product Type | Real Time Clock | Real Time Clock | - |
| Factory Pack Quantity | 2500 | 98 | - |
| Subcategory | Clock & Timer ICs | Clock & Timer ICs | - |
| Unit Weight | 0.002540 oz | 0.002540 oz | - |
| Package Case | - | - | 8-UFDFN |
| Operating Temperature | - | - | -40°C ~ 85°C |
| Mounting Type | - | - | Surface Mount |
| Features | - | - | Alarm, Leap Year |
| Interface | - | - | I2C, 2-Wire Serial |
| Voltage Supply | - | - | 1.8 V ~ 3.6 V |
| Supplier Device Package | - | - | * |
| Memory Size | - | - | - |
| Voltage Supply Battery | - | - | - |
| Current Timekeeping Max | - | - | 0.65μA @ 1.8V |