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| PartNumber | PCF85263ATT/AJ | PCF85263ATT1/AJ | PCF85263ATT/AJ-CUT TAPE |
| Description | Real Time Clock Low Power Real time clocks | Real Time Clock Low Power Real time clocks | |
| Manufacturer | NXP | NXP | - |
| Product Category | Real Time Clock | Real Time Clock | - |
| RoHS | Y | Y | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Package / Case | TSSOP-8 | TSSOP-10 | - |
| RTC Bus Interface | Serial, I2C | Serial, I2C | - |
| Date Format | Binary | Binary | - |
| Time Format | Binary | Binary | - |
| Battery Backup Switching | Backup Switching | Backup Switching | - |
| Supply Voltage Max | 5.5 V | 5.5 V | - |
| Supply Voltage Min | 900 mV | 900 mV | - |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 85 C | + 85 C | - |
| Packaging | Reel | Reel | - |
| Function | Alarm, Calendar, Clock | Alarm, Calendar, Clock | - |
| Product | Real Time Clocks | Real Time Clocks | - |
| Series | PCF85263A | PCF85263A | - |
| Type | CMOS Real-Time Clock and Calendar | CMOS Real-Time Clock and Calendar | - |
| Brand | NXP Semiconductors | NXP Semiconductors | - |
| Product Type | Real Time Clock | Real Time Clock | - |
| Factory Pack Quantity | 2500 | 2500 | - |
| Subcategory | Clock & Timer ICs | Clock & Timer ICs | - |
| Part # Aliases | 935304459118 | 935304461118 | - |
| Unit Weight | 0.000780 oz | 0.000815 oz | - |