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Product Variant Information section
Product Specification Section
Pricing Section

Stock: 35,000

On Order: 0
Factory Stock:Factory Stock: 0
Factory Lead Time: 7 Weeks
Minimum Order: 2,500
Multiple Of: 2,500
Quantity Web Price
2,500+ $0.445


Attributes Table
Date Format DW:DM:M:Y/Binary
Time Format HH:MM:SS/Binary
Interface 2-Wire
Supply Voltage-Nom 1V to 5.5V
Temperature Grade Industrial
Operating Temp Range -40°C to +85°C
Storage Temperature Range -65°C to +150°C
Features and Applications

The PCA8563 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.
AEC-Q100 compliant (PCA8565TS) for automotive applications


  • provides year, month, day, weekday, hours, minutes and seconds based on a
    32.768 kHz quartz crystal
  • Century flag
  • 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 mA at VDD = 3.0 V and Tamb = 25 °C
  • 400 kHz two-wire 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
  • Internal power-on reset
  • I2C-bus slave address: read A3h and write A2h
  • Open-drain interrupt pin
  • One integrated oscillator capacitor


  • Mobile telephones
  • Portable instruments
  • Electronic metering
  • Battery powered products