PCF8563T/F4
Low-power real-time clock ICs with calendar and I2C interface in SOIC package
Manufacturer： nxp
series introduction
# Introduction to the PCF8563T/F4 Product Series
## 1. Overview
The PCF8563T/F4 is a highly integrated, low - power real - time clock (RTC) and calendar device series developed by NXP Semiconductors. This product series is designed to provide accurate timekeeping and calendar functions in a wide range of applications, from consumer electronics to industrial control systems. With its compact size, low power consumption, and rich feature set, the PCF8563T/F4 has become a popular choice for designers looking to add reliable timekeeping capabilities to their products.
## 2. Key Features
### 2.1 Timekeeping and Calendar Functions
- **Accurate Timekeeping**: The PCF8563T/F4 can accurately keep track of seconds, minutes, hours, days, dates, months, and years. It supports both the 12 - hour and 24 - hour clock formats, providing flexibility for different application requirements.
- **Leap Year Compensation**: The device automatically compensates for leap years, ensuring accurate date calculations over long periods. This feature is crucial for applications that rely on precise date information, such as event scheduling and data logging.
### 2.2 Low Power Consumption
- **Standby Current**: One of the most significant advantages of the PCF8563T/F4 is its extremely low standby current. In standby mode, the device consumes only a few microamperes of current, making it ideal for battery - powered applications where power efficiency is critical. This low power consumption helps to extend the battery life of the end - product, reducing the frequency of battery replacements.
- **Power - Down Mode**: The device also supports a power - down mode, which further reduces power consumption when the timekeeping function is not required. In this mode, the device can be easily awakened to resume normal operation.
### 2.3 I²C Interface
- **Easy Integration**: The PCF8563T/F4 uses the widely adopted I²C (Inter - Integrated Circuit) serial interface for communication with the host microcontroller. This interface simplifies the hardware design and reduces the number of pins required for communication, making it easy to integrate the device into existing systems.
- **High - Speed Communication**: The I²C interface supports a maximum clock frequency of 400 kHz, allowing for fast and efficient data transfer between the PCF8563T/F4 and the host microcontroller.
### 2.4 Alarm and Timer Functions
- **Alarm Function**: The device features an alarm function that can be set to trigger at a specific time or date. When the alarm condition is met, the device can generate an interrupt signal to notify the host microcontroller. This feature is useful for applications such as wake - up alarms in mobile devices and scheduled events in industrial control systems.
- **Timer Function**: The PCF8563T/F4 also includes a programmable timer function. The timer can be set to generate an interrupt signal after a specified time interval, which can be used for tasks such as periodic data sampling and system monitoring.
### 2.5 Clock Output
- **Square - Wave Output**: The device provides a square - wave output with a selectable frequency of 32.768 kHz, 1024 Hz, 32 Hz, or 1 Hz. This clock output can be used to drive external circuits, such as LCD displays or other timing - sensitive components.
## 3. Applications
### 3.1 Consumer Electronics
- **Wearable Devices**: In smartwatches and fitness trackers, the PCF8563T/F4 provides accurate timekeeping and can be used to schedule alarms for workouts, reminders, and other events. Its low power consumption is essential
Images for reference
8-SOIC
Image Preview
Image Preview