PCF2127AT/1,512
IC RTC CLOCK/CALENDAR I2C 20SOManufacturer: NXP USA Inc.
Categories: Real Time Clocks
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The NXP USA Inc. PCF2127AT-1-512 is a Clock/Calendar real-time clock integrated circuit featuring a 512-byte SRAM. This component utilizes an I2C, 2-Wire Serial interface for communication. Key features include alarm functionality, leap year calculation, square wave output, a watchdog timer, and support for TCXO/crystal. Operating with a supply voltage range of 1.8V to 4.2V, it exhibits a low timekeeping current consumption of 1.5µA at 3.3V. The device is housed in a 20-SOIC package with a 7.50mm width, suitable for surface mounting. It supports both HH:MM:SS (12/24 hr) and YY-MM-DD-dd date formats. This clock/calendar is commonly employed in automotive, industrial, and consumer electronics applications where accurate timekeeping and calendar functions are critical.
Additional Information
Series: -RoHS Status: ROHS3 CompliantManufacturer Lead Time: No lead time information availableProduct Status: ObsoletePackaging: TubeDownload Free CAD Model:
Technical Details:
| Features | Alarm, Leap Year, Square Wave Output, SRAM, TCXO/Crystal, Watchdog Timer |
| Packaging | Tube |
| Package / Case | 20-SOIC (0.295"", 7.50mm Width) |
| Mounting Type | Surface Mount |
| Memory Size | 512B |
| Interface | I2C, 2-Wire Serial |
| Type | Clock/Calendar |
| Operating Temperature | -40°C ~ 85°C |
| Voltage - Supply | 1.8V ~ 4.2V |
| Time Format | HH:MM:SS (12/24 hr) |
| Date Format | YY-MM-DD-dd |
| Supplier Device Package | 20-SO |
| Voltage - Supply, Battery | 1.8V ~ 4.2V |
| Current - Timekeeping (Max) | 1.5µA @ 3.3V |
| Programmable | Not Verified |
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