PCA85073ADP中文资料Automotive tiny Real-Time Clock/Calendar with alarm function and I2C-bus数据手册恩XP规格书

描述 Description

The PCA85073A is a CMOS1 Real-Time Clock (RTC) and calendar optimized for low power consumption. An offset register allows fine-tuning of the clock. All addresses and data are transferred serially via the two-line bidirectional I2C-bus. Maximum data rate is 400 kbit/s. The register address is incremented automatically after each written or read data byte.

特性 Features

• AEC-Q100 grade 2 compliant for automotive applications
• Provides year, month, day, weekday, hours, minutes, and seconds based on a 32.768 kHz quartz crystal
• Low current; typical 0.25 µA at VDD = 3.0 V and Tamb = 25 °C
• Programmable clock output for peripheral devices (32.768 kHz, 16.384 kHz, 8.192 kHz, 4.096 kHz, 2.048 kHz, 1.024 kHz, and 1 Hz)
• Alarm function
• Minute and half minute interrupt
• Internal Power-On Reset (POR)
• High temperature operation range: —40 °C to +105 °C
• Clock operating voltage: 0.9 V to 5.5 V
• 400 kHz two-line I2C-bus interface (at VDD = 1.8 V to 5.5 V)
• Selectable integrated oscillator load capacitors for CL = 7 pF or CL = 12.5 pF
• Countdown timer
• Oscillator stop detection function
• Programmable offset register for frequency adjustment
• Latch-up performance exceeds 100 mA per JESD 78, Class II
• ESD protection exceeds JESD 22
• 4000 V Human-Body Model (A114-A)
• 1000 V Charged-Device Model (C101)
• Package offered: TSSOP8

应用 Application

Industrial

• Accurate timing

• Air condition

• Body control and battery management

• Center stack

• Dashboard

• Infotainment unit

• Telematics

• Tracking time of the day