PCF8563 PCF8563T 8563 IIC Real Time Clock RTC Module

The PCF8563 I2C Real Time Clock (RTC) Module is a low-power timekeeping device ideal for real-time applications requiring accurate clock/calendar functions. It provides year, month, day, weekday, hours, minutes, and seconds tracking through the I2C bus. Compact and reliable, it is widely used in embedded systems, microcontroller projects, data loggers, and time-stamping applications.

Key Features of PCF8563 PCF8563T 8563 IIC RTC Module:

• RTC Functionality: Tracks seconds, minutes, hours, days, weekdays, months, and years.
• I2C Communication: Supports standard I2C interface for easy integration with microcontrollers.
• Wide Voltage Range: Operates between 1.0V to 5.5V for compatibility with various systems.
• Low Power Consumption: Ideal for battery-operated and energy-efficient applications.
• Clock Output: Programmable clock output with selectable frequencies.

Technical Specifications of PCF8563 RTC Module:

• Chipset: NXP PCF8563T
• Operating Voltage: 1.0V – 5.5V
• Interface: I2C (2-wire)
• Time Format: 24-hour or 12-hour with AM/PM
• Programmable Alarm: Daily alarm setting available
• Accuracy: ±1 minute/month at 25°C
• Temperature Range: -40°C to +85°C

Mechanical Specifications of PCF8563 RTC Module:

• Module Dimensions: Approx. 21mm x 15mm
• Mounting Holes: None (suitable for soldering to PCBs or breadboards)
• Battery Backup: CR1220 or equivalent supported (not included)
• Connector Type: Standard 4-pin header (VCC, GND, SDA, SCL)

Dimensions:

• Length: 21mm
• Width: 15mm
• Height: 4mm (without battery)
• Pin Pitch: 2.54mm

Mounting Options:

• Breadboard Friendly: Standard 2.54mm pitch for easy prototyping.
• PCB Mount: Can be soldered onto custom PCBs.

Schematic Diagram, Connection, Wiring and Pinout of PCF8563 RTC Module:

• Pinout:
  • VCC: Power supply (3.3V or 5V)
  • GND: Ground
  • SDA: Serial Data Line (I2C data)
  • SCL: Serial Clock Line (I2C clock)
• Connection: Connect VCC to 3.3V/5V, GND to GND, SDA/SCL to corresponding I2C pins on the microcontroller.
• Wiring: Ensure pull-up resistors (~4.7kΩ) on SDA and SCL lines if not already on the module.

Datasheet of PCF8563T RTC IC:

• Download PCF8563 Datasheet (PDF)

Applications of PCF8563 PCF8563T RTC Module:

• Timekeeping in Embedded Systems: Maintains accurate date and time across power cycles.
• Data Logging Projects: Adds time-stamping capabilities to data collection systems.
• Clock Displays: Used in digital clocks and calendar displays.
• Alarms and Reminders: Programmable alarm function for alerts and scheduling.
• Battery-Powered Devices: Retains time with minimal current draw using coin cell.

Equivalent Models of PCF8563 RTC Module:

• DS1307: Popular I2C RTC with battery backup and 56 bytes of RAM
• DS3231: High-accuracy RTC with integrated crystal and temperature compensation
• RX8025: Low-power I2C RTC suitable for similar applications

Package Includes:

• 1 x PCF8563 PCF8563T 8563 IIC Real Time Clock RTC Module