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PCA8565AU: Real-time clock/calendar

The PCA8565A is a CMOS Real-Time Clock (RTC) and calendar optimized for low power consumption. A programmable clock output, interrupt output, and voltage-low detector are also provided. All addresses 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.

• AEC-Q100 compliant for automotive applications
• Provides year, month, day, weekday, hours, minutes, and seconds based on 32.768 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, and 1 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

Data Sheets (1)

Application Notes (2)

Users Guides (5)

Brochures (2)

Ordering Information

Package Information

Product ID	Package Description	Outline Version	Reflow/Wave Soldering	Packing	Product Status	Part NumberOrdering code(12NC)	Marking	Chemical Content	RoHS / Pb Free / RHF	LeadFree Conversion Date	IFR(FIT)	MTBF(hour)	MSL	MSL LF
PCA8565AU/5BB/1				Wafer, unmeasured	Active	PCA8565AU/5BB/1,01 (9352 892 64015)	Standard Marking	PCA8565AU/5BB/1		Always Pb-free	5	2E8	NA	NA