Overview
The PCF8563T/5 is a CMOS Real-Time Clock (RTC) and calendar component produced by NXP USA Inc. This device is optimized for low power consumption, making it suitable for a variety of applications, especially those requiring precise timekeeping and low energy usage. The PCF8563T/5 features a programmable clock output, interrupt output, and a voltage-low detector, enhancing its functionality and reliability.
Key Specifications
| Specification | Value |
|---|---|
| Package Type | SO8 plastic small outline package; 8 leads; body width 3.9 mm (SOT96-1) |
| Operating Voltage | 1.0 V to 5.5 V at room temperature |
| Backup Current | Typical 0.25 μA at VDD= 3.0 V and Tamb= 25°C |
| I2C-Bus Interface | 400 kHz two-wire I2C-bus interface (at VDD= 1.8 V to 5.5 V) |
| Clock Output | Programmable clock output for peripheral devices (32.768 kHz, 1.024 kHz, 32 Hz, and 1 Hz) |
| Oscillator | On-chip 32.768 kHz oscillator with one integrated capacitor |
| Interrupt Output | Open-drain interrupt pin |
| Voltage-Low Detector | On-chip voltage-low detector |
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
- 400 kHz two-wire I2C-bus interface (at VDD= 1.8 V to 5.5 V)
- 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 PCF8563T/5? The PCF8563T/5 is a CMOS Real-Time Clock (RTC) and calendar component optimized for low power consumption.
- What are the key features of the PCF8563T/5? It includes a programmable clock output, interrupt output, voltage-low detector, and an integrated oscillator capacitor.
- What is the operating voltage range of the PCF8563T/5? The operating voltage range is 1.0 V to 5.5 V at room temperature.
- What is the typical backup current of the PCF8563T/5? The typical backup current is 0.25 μA at VDD= 3.0 V and Tamb= 25°C.
- What interface does the PCF8563T/5 use for data transfer? It uses a 400 kHz two-wire I2C-bus interface.
- What are the programmable clock output frequencies of the PCF8563T/5? The programmable clock output frequencies are 32.768 kHz, 1.024 kHz, 32 Hz, and 1 Hz.
- Does the PCF8563T/5 have an integrated oscillator capacitor? Yes, it has an on-chip 32.768 kHz oscillator with one integrated capacitor.
- What is the purpose of the voltage-low detector in the PCF8563T/5? The voltage-low detector indicates when the supply voltage drops below a certain threshold, potentially compromising the clock's integrity.
- In what types of applications is the PCF8563T/5 commonly used? It is commonly used in mobile telephones, portable instruments, electronic metering, and battery-powered products.
- What package types are available for the PCF8563T/5? It is available in an SO8 plastic small outline package with 8 leads and a body width of 3.9 mm (SOT96-1).
