| PartNumber | PCF2127AT/2Y | PCF2127AT/1,512 | PCF2127AT/1,518 |
| Description | Real Time Clock Integrated RTC RTC IC | IC RTC CLK/CAL I2C/SPI 20-SOIC | IC RTC CLK/CAL I2C/SPI 20-SOIC |
| Manufacturer | NXP | - | - |
| Product Category | Real Time Clock | - | - |
| RoHS | Y | - | - |
| Mounting Style | SMD/SMT | - | - |
| Package / Case | SOT-163-1 | - | - |
| RTC Bus Interface | Serial, I2C | - | - |
| Date Format | DW:DM:M:Y | - | - |
| Time Format | HH:MM:SS | - | - |
| Battery Backup Switching | Backup Switching | - | - |
| RTC Memory Size | 512 B | - | - |
| Supply Voltage Max | 4.2 V | - | - |
| Supply Voltage Min | 1.8 V | - | - |
| Minimum Operating Temperature | - 40 C | - | - |
| Maximum Operating Temperature | + 85 C | - | - |
| Packaging | Reel | - | - |
| Function | Calendar, Clock, Temperature | - | - |
| Product | Real Time Clocks | - | - |
| Series | PCF2127AT | - | - |
| Brand | NXP Semiconductors | - | - |
| Moisture Sensitive | Yes | - | - |
| Product Type | Real Time Clock | - | - |
| Factory Pack Quantity | 2000 | - | - |
| Subcategory | Clock & Timer ICs | - | - |
| Part # Aliases | 935299867518 | - | - |
| Unit Weight | 0.016007 oz | - | - |