PCF2129T/2,518
NXP PCF2129T/2,518 芯片, 实时时钟/日历, I2C/SPI, SOIC-16
The is an accurate RTC with an integrated temperature compensated crystal Xtal oscillator TCXO and a 32.768kHz quartz crystal optimized for very high accuracy and very low power consumption. This has a selectable I²C-bus or SPI-bus, a backup battery switch-over circuit, a programmable watchdog function and a timestamp function.
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- Timestamp function with interrupt capability
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- 3 Line SPI-bus with separate data input and output
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- Battery backup input pin and switch-over circuitry
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- Oscillator stop detection function
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- Open-drain interrupt output
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- Programmable watchdog timer with interrupt