PCA8565AU中文资料Real-time clock/calendar数据手册恩XP规格书

描述 Description

The PCA8565A is a CMOS Real-Time Clock (RTC) and calendar optimized for lowpower consumption. A programmable clock output, interrupt output, and voltage-lowdetector are also provided. All addresses and data are transferred serially via a two-linebidirectional I2C-bus. Maximum bus speed is 400 kbit/s. The built-in word address registeris incremented automatically after each written or read data byte.

特性 Features

• AEC-Q100 compliant for automotive applications
• Provides year, month, day, weekday, hours, minutes, and seconds based on32.768 kHz quartz crystal
• Clock operating voltage: 1.8 V to 5.5 V
• Extended operating temperature range: -40 °C to +125 °C
• Low backup current: typical 0.65 μA at VDD = 3.0 V and Tamb = 25 °C
• 400 kHz two-line I2C-bus interface (at VDD = 1.8 V to 5.5 V)
• Programmable clock output for peripheral devices (32.768 kHz, 1.024 kHz, 32 Hz, and1 Hz)
• Alarm and timer functions
• Two integrated oscillator capacitors
• Internal Power-On Reset (POR)
• I2C-bus slave address: read A3h; write A2h
• Open-drain interrupt pin
Target Applications
• Automotive
• Industrial
• Applications that require a wide operating temperature range

应用 Application

• Automotive
• Industrial
• Applications that require a wide operating temperature range