Overview
The PCF8563T/F4,112 is a CMOS Real-Time Clock (RTC) and calendar chip produced by NXP USA Inc. This component is optimized for low power consumption, making it suitable for a variety of battery-powered and low-power applications. It features a programmable clock output, interrupt output, and a voltage-low detector, among other functionalities. The device communicates via a two-line bidirectional I2C-bus interface with a maximum bus speed of 400 kbit/s.
Key Specifications
| Parameter | Value |
|---|---|
| Operating Voltage | 1.0 V to 5.5 V |
| Backup Current | Typical 0.25 μA at VDD = 3.0 V and Tamb = 25°C |
| I2C-bus Interface Speed | 400 kHz |
| Package Type | 8-TSSOP |
| Oscillator Frequency | 32.768 kHz |
| Programmable Clock Output Frequencies | 32.768 kHz, 1.024 kHz, 32 Hz, 1 Hz |
| Interrupt Output | Open-drain, active LOW |
| Timer Function | 8-bit countdown timer with four source clock frequencies |
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.
- 400 kHz two-wire I2C-bus interface.
- 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.
Applications
- Mobile telephones.
- Portable instruments.
- Electronic metering.
- Battery-powered products.
Q & A
- What is the primary function of the PCF8563T/F4,112? The primary function is to provide a Real-Time Clock (RTC) and calendar with low power consumption.
- What is the operating voltage range of the PCF8563T/F4,112? The operating voltage range is 1.0 V to 5.5 V.
- What is the maximum speed of the I2C-bus interface? The maximum speed of the I2C-bus interface is 400 kHz.
- What are the programmable clock output frequencies? The programmable clock output frequencies are 32.768 kHz, 1.024 kHz, 32 Hz, and 1 Hz.
- Does the PCF8563T/F4,112 have an integrated oscillator capacitor? Yes, it has an integrated oscillator capacitor.
- What is the purpose of the interrupt output? The interrupt output is used to signal events such as the end of a timer countdown or alarm conditions.
- What type of package does the PCF8563T/F4,112 come in? The PCF8563T/F4,112 comes in an 8-TSSOP package.
- What is the typical backup current of the PCF8563T/F4,112? The typical backup current is 0.25 μA at VDD = 3.0 V and Tamb = 25°C.
- Does the PCF8563T/F4,112 have a timer function? Yes, it has an 8-bit countdown timer with four source clock frequencies.
- What are some common applications of the PCF8563T/F4,112? Common applications include mobile telephones, portable instruments, electronic metering, and battery-powered products.
