MCP795B12T-I/ST

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MCP795B12T-I/ST is a Real Time Clock (RTC) designed by Microchip Technology Inc. It is based on a 3V battery-powered, low-power CMOS technology. The Real Time Clock is available in an 8-pin SOIC package and offers an array of features, including a selectable 32 kHz crystal oscillator, an 8-bit RTC counter with self-alignment, a watchdog timer, Timer1/Timer2, IO-Port interrupts, UART, Clock Out and an interrupt on the rising edge of the 32kHz crystal oscillator. The clock operates up to 6.5V and the low-power requirements of the device allow it to operate continuously for longer periods of time.

MCP795B12T-I/ST can be used in a variety of applications, such as data logging, remote monitoring, embedded system timing, energy management, and more. It is also suitable for temperature and humidity sensing and control, current measurement, touch sensing, voltage monitoring, and various other applications.

The working principle of the MCP795B12T-I/ST is to utilize a crystal oscillator (X1) to drive the 32kHz clock output while the crystal frequency source is used to determine the frequency of the clock output. The 32kHz output functions as the clock source for the "RTCC" which controls the clock and calendar functions. The RTCC will divide down the incoming 32 kHz clock input and count time. When the time counts are reset by a write command, the time count will begin again from the same preset values. The RTCC module also operates as a watchdog timer and can be used to generate an interrupt if it detects a specific condition.

In summary, the MCP795B12T-I/ST can be used in a variety of applications in the field of Real Time Clock. It is a battery-powered, low-power timekeeping device that uses a 32kHz crystal oscillator to drive the clock output. It offers a variety of features, including a watchdog timer, Timer1/Timer2, IO-Port interrupts, UART, Clock Out and interrupt on the rising edge of the 32kHz crystal oscillator, making it suitable for various applications requiring accurate timekeeping and scheduling.

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