PCA8565 Datasheet | NXP Semiconductors

Real time clock/calendar Rev. 4 - 5 December 2014 Product data sheet 1. General description The PCA8565 is a CMOS1 real time clock and calendar optimized for low power consumption. A programmable clock output, interrupt output and voltage-low detector are also provided. All address and data are transferred serially via a two-line bidirectional I2C-bus. Maximum bus speed is 400 kbit/s. The built-in word address register is incremented automatically after each written or read data byte. For a selection of NXP Real-Time Clocks, see Table 36 on page 40 2. Features and benefits - AEC-Q100 pliant (PCA8565TS) for automotive applications - Provides year, month, day, weekday, hours, minutes and seconds based on a 32.768 k Hz quartz crystal - Clock operating voltage: 0.9 V to 5.5 V at room temperature - Extended operating temperature range: - 40 C to +125 C - Low current; typical 0.65 A at VDD = 3.0 V and Tamb = 25 C - 400 k Hz two-wire I2C-bus interface (at VDD = 1.8 V to 5.5 V) - Programmable clock output for peripheral devices (32.768 k Hz, 1.024 k Hz, 32 Hz and 1 Hz) - Alarm and timer functions - Internal power-on reset - I2C-bus slave address: read A3h and write A2h - Open-drain interrupt pin - One integrated oscillator capacitor 3. Applications - Automotive - Industrial - Other applications that require a wide operating temperature range 1. The definition of the abbreviations and acronyms used in this data sheet can be found in Section 22. NXP Semiconductors Real time...