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OM13519
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PCA8565 Demo Board.
PCA8565 Demo Board
The OM13519UL is the demo board for PCA8565. 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 bi-directional 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.
Product Details
Supported Devices
Analog and Mixed Signal
Real-Time Clocks
- PCA8565: Real-Time Clock/Calendar
Features
Key Features
- Alarm and timer functions
- Extended operating temperature range: -40 °C to +125 °C
- AEC-Q100 compliant (PCA8565TS) for automotive applications
- Open-drain interrupt pin
- One integrated oscillator capacitor
- Provides year, month, day, weekday, hours, minutes and seconds based on a 32.768 kHz quartz crystal
Connectivity
- 400 kHz two-wire I²C-bus interface (at VDD = 1.8 V to 5.5 V)
- I²C-bus target address: read A3h and write A2h
Power Management
- Clock operating voltage: 0.9 V to 5.5 V at room temperature
- Low current; typical 0.65 μA at VDD = 3.0 V and Tamb = 25 °C
- Programmable clock output for peripheral devices (32.768 kHz, 1.024 kHz, 32 Hz, and 1 Hz)
- Internal power-on reset
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