RS5C314 Overview
ULTRA-PACT REAL-TIME CLOCK IC RS5C314 OUTLINE EK-082-9908 The RS5C314 is a CMOS type real-time clock which is connected to the CPU via three signal lines and capable of serial transmission of clock and calendar data to the CPU. The RS5C314 can generate various interrupt clock pulses lasting for long periods (one month). Driving an oscillation circuit at constant voltage, the circuit undergoes few voltage...
RS5C314 Key Features
- Time Keeping Supply Voltage: 1.6 to 6.0 V
- Operating Supply Voltage: 2.7 to 6.0 V
- Low Current Consumption: TYP. 0.7µA (MAX. of 1.5µA) at 3V
- Connection to the CPU via only three pins: CE, SCLK, and SIO (for addressing and data read and write opera. tions)
- A clock counter (counting hours, minutes, and seconds) and a calendar counter (counting leap years, years, months, days,
- Generation of interrupt pulses to the CPU with cycles ranging from 1 month to 1/1024 Hz, interrupt flags, and interrupt
- Software-based alarming through clock-interlocked interrupt operation
- Oscillator halt sensing to judge internal data validity
- Second digit adjustment by ±30 seconds
- 12-hour or 24-hour time display selectable