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OUTLINE
The RS5C316A/B are CMOS type real-time clock ICs which are connected to the CPU via three signal lines and capable of serial transmission of clock and calendar data to the CPU.
The RS5C316A/B can generate various periodic interrupt clock pulses lasting for long period (one month), further alarm interrupt can be made by days of the week, hours, and minutes. Driving an oscillation circuit at constant voltage, the circuit undergoes few voltage fluctuations and consequently realizes low current consumption (0.6µA at 3V). It also provides an oscillator halt sensing function for application to data validity at power-on and other occasions. Integrated into an ultra compact and ultra thin 8pin SSOP (0.65mm pitch), the RS5C316A/B are the optimum choice for equipment requiring small size and low power consumption.
The RS5C316A and the RS5C316B reads/writes data at falling and rising edge of serial clock respectively.FEATURES
• Time keeping voltage 1.6V to 6.0V
• Lowest supply current 0.6µA TYP. (1.5µA MAX.) at 3V
• Connection to the CPU via only three pins: CE, SCLK/SCLK and SIO for addressing and data read/write
• A clock counter (counting hours, minutes, and seconds) and a calendar counter (counting leap years, years, months, days, and days of the week) in BCD code
• Periodic interrupt pulses to the CPU with cycles ranging from one month to 1/1024Hz, with interrupt flags and interrupt halt
• Alarm interrupt (days of the week, hours, minutes)
• Oscillator halt sensing to judge internal data validity
• Second digit adjustment by ±30 seconds
• 12-hour or 24-hour time display selectable
• Automatic leap year recognition up to the year 2099
• CMOS logic
• Package: 8pin SSOP (0.65mm pitch)APPLICATIONS
• Communication equipment (Multi-function telephone, portable telephone, PHS, pager)
• Business machines (Facsimile, portable facsimile)
• Personal computer (Desktop type, notebook type, word processor, PDA, electronic notebook, TV games)
• Audio visual equipment (Portable audio equipment, video camera, camera, digital camera, remote control equipment)
• Home use (Rice cooker, microwave range) -
Similar parts: 430483 , Click to view
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- Datasheet: Download RS5C316A
- Chipdatas Part: CD88-RS5C316A
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- Last Updated: 2024/06/30 18:18 +0800
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