Overview
The PCF8563P/F4,112 is a Real-Time Clock (RTC) and calendar integrated circuit produced by NXP USA Inc. This CMOS device is optimized for low power consumption and features a range of functionalities that make it suitable for various applications. It includes a programmable clock output, interrupt output, and a voltage-low detector, all accessible via a 400 kHz two-wire I2C-bus interface.
Key Specifications
| Specification | Value |
|---|---|
| Package | 8-DIP (0.300", 7.62mm) |
| Operating Voltage | 1.8 V ~ 5.5 V |
| Operating Temperature | -40°C ~ 85°C |
| Time Format | HH:MM:SS (24 hr), YY-MM-DD-dd |
| Interface | I²C, 2-Wire Serial |
| Maximum Bus Speed | 400 kbit/s |
| Current - Timekeeping (Max) | 0.6µA ~ 0.75µA @ 2V ~ 5V |
| Alarm and Timer Functions | Yes |
| Integrated Oscillator Capacitor | Yes |
| Internal Power-On Reset (POR) | Yes |
Key Features
- Provides year, month, day, weekday, hours, minutes, and seconds based on a 32.768 kHz quartz crystal.
- Clock operating voltage: 1.0 V to 5.5 V at room temperature.
- Low backup current; typical 0.25 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).
- Alarm and timer functions.
- Integrated oscillator capacitor.
- Internal Power-On Reset (POR).
- Open-drain interrupt pin.
- Voltage-low detector to monitor battery voltage.
Applications
- Mobile telephones.
- Portable instruments.
- Electronic metering.
- Battery-powered products.
Q & A
- What is the PCF8563P/F4,112?
The PCF8563P/F4,112 is a Real-Time Clock (RTC) and calendar integrated circuit produced by NXP USA Inc. - What is the operating voltage range of the PCF8563P/F4,112?
The operating voltage range is 1.8 V to 5.5 V. - What interface does the PCF8563P/F4,112 use?
The device uses an I²C, 2-Wire Serial interface. - What is the maximum bus speed of the PCF8563P/F4,112?
The maximum bus speed is 400 kbit/s. - Does the PCF8563P/F4,112 have alarm and timer functions?
Yes, it does. - What is the typical backup current of the PCF8563P/F4,112?
The typical backup current is 0.25 µA at VDD= 3.0 V and Tamb= 25°C. - What are some common applications of the PCF8563P/F4,112?
Common applications include mobile telephones, portable instruments, electronic metering, and battery-powered products. - Does the PCF8563P/F4,112 have an integrated oscillator capacitor?
Yes, it does. - How does the PCF8563P/F4,112 handle leap years?
The device compensates for leap years by adding a 29th day to February if the year counter contains a value which is a leap year. - What is the purpose of the voltage-low detector in the PCF8563P/F4,112?
The voltage-low detector monitors the battery voltage and sets a flag if the voltage drops below a certain threshold, indicating potential corruption of the clock information.
