PCA21125T中文资料SPI总线实时时钟和日历数据手册恩XP规格书

描述 Description

The PCA21125 is a CMOS Real-Time Clock (RTC) and calendar optimized for low-powerconsumption and an operating temperature up to 125 °C. Data is transferred via a SerialPeripheral Interface (SPI-bus) with a maximum data rate of 6.0 Mbit/s. Alarm and timerfunctions are also available with the possibility to generate a wake-up signal on theinterrupt pin.

特性 Features

• AEC Q100 compliant for automotive applications
• Provides year, month, day, weekday, hours, minutes, and seconds based on32.768 kHz quartz crystal
• Resolution: seconds to years
• Clock operating voltage: 1.3 V to 5.5 V
• Low supply current: typical 0.8 μA at Tamb = 25 °C
• 4-line SPI-bus with separate, but combinable data input and output
• Serial interface at VDD = 1.6 V to 5.5 V
• 1 second or 1 minute interrupt output
• Freely programmable timer with interrupt capability
• Freely programmable alarm function with interrupt capability
• Integrated oscillator capacitor
• Internal Power-On Reset (POR)
• Open-drain interrupt pin

应用 Application

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