Product Summary
The PCF8563T is a CMOS real-time clock/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 of the PCF8563T is 400 kbits/s. The built-in word address register is incremented automatically after each written or read data byte.
Parametrics
PCF8563T absolute maximum ratings: (1)supply voltage: -0.5 to +6.5 V; (2)supply current: -50 to +50 mA; (3)input voltage on inputs SCL and SDA: -0.5 to 6.5 V; (4)input voltage on input OSCI: -0.5 to VDD + 0.5 V; (5)output voltage on outputs CLKOUT and INT: -0.5 to 6.5 V; (6)DC input current at any input: -10 to +10 mA; (7)DC output current at any output: -10 to +10 mA; (8)total power dissipation: 300 mW; (9)operating ambient temperature: -40 to +85 ℃; (10)storage temperature: -65 to +150 ℃.
Features
PCF8563T features: (1)Provides year, month, day, weekday, hours, minutes and seconds based on 32.768 kHz quartz crystal; (2)Century flag; (3)Wide operating supply voltage range: 1.0 to 5.5 V; (4)Low back-up current; typical 0.25 μA at VDD = 3.0 V and Tamb =25 ℃; (5)400 kHz two-wire I2C-bus interface (at VDD = 1.8 to 5.5 V); (6)Programmable clock output for peripheral devices: 32.768 kHz, 1024 Hz,32 Hz and 1 Hz; (7)Alarm and timer functions; (8)Voltage-low detector; (9)Integrated oscillator capacitor; (10)Internal power-on reset; (11)I2C-bus slave address: read A3H; write A2H; (12)Open drain interrupt pin.
Diagrams
Image | Part No | Mfg | Description | Pricing (USD) |
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PCF8563T/F4,112 |
NXP Semiconductors |
Real Time Clock ULTRA LOW PWR CLOCK CALENDAR |
Data Sheet |
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PCF8563TS/4,118 |
NXP Semiconductors |
Real Time Clock ULTRA LOW PWR CLOCK CALENDAR |
Data Sheet |
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PCF8563TS/5,118 |
NXP Semiconductors |
Real Time Clock Binary I2C 1-5V |
Data Sheet |
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PCF8563T/F4,118 |
NXP Semiconductors |
Real Time Clock ULTRA LO PWR CLK/CAL |
Data Sheet |
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PCF8563T/5,518 |
NXP Semiconductors |
Real Time Clock Binary I2C 1-5V |
Data Sheet |
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