PCF8523TS/1,112

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PCF8523TS/1,112 is a Real-Time Clock (RTC) IC available in a variety of prominent industry packages, such as SOIC-14, TSSOP-14, PDIP-14 and others. It includes an internal oscillator, 8-bit timekeeping counters, an interrupt controller and a 1.5V-level oscillator interface, as well as an integrated power management circuit. The PCF8523TS/1,112 provides an accuracy of ±2 minutes/year at 25°C due to its excellent temperature compensation.

The PCF8523TS/1,112 is a highly accurate, programmable, broad-spectrum RTC for any system where real-time control is a requirement. It has several features, such as a wide frequency range up to 1MHz, integrated 256 bytes of user RAM, and 32-bit timer with optional alarm along with an on-board oscillator, that make it suitable for a variety of applications. It is ideal for use in applications requiring frequent code modification and remote and on-site maintenance and debugging, as it can be programmed to operate with various clock and calendar functions, as well as an alarm, while working parallel with an existing real-time clock.

Its 1.5V oscillator interface and power management circuit ensure low power consumption, making the PCF8523TS/1,112 suitable for battery-powered applications. It is often used in medical devices, where long battery life and reliability of data-recording are paramount. The 1.5V oscillator interface and power management circuit also contribute to the device’s high Electrostatic Discharge (ESD) protection levels, making the PCF8523TS/1,112 resistant to even high ESD levels.

The integrated 8-bit counters provide exact real-time information, and the user RAM enables the device to store non-volatile data. The 32-bit timer and its optional alarm are highly useful for applications that require periodic timing operations, such as data acquisition, data transfer, and automatic device activation at specific times. Additionally, the PCF8523TS/1,112 has an interrupt controller that can be programmed to respond to various alarms and is compatible with standard microcontrollers.

The PCF8523TS/1,112 also has a power-saving sleep mode, which helps ensure low power consumption. When the device enters the sleep mode, the user RAM is kept operational to enable retention of non-volatile data. The on-chip power management circuit also helps in reducing power consumption and enabling the use of the device in extended temperature range from -55°C to +125°C. Moreover, the wide operating voltage range (1.2V to 5.5V) integrates the device into even battery-powered systems.

In conclusion, the PCF8523TS/1,112 is a high-performance, feature-rich real-time clock and calendar with integrated 8-bit timekeeping counters, a 32-bit timer, and an integrated power management circuit. It is a suitable choice for any application requiring real-time monitoring and control, while offering low power consumption, excellent temperature compensation accuracy and high ESD protection.

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