IN1363DT

The microcircuit IN1363 is essentially a complete binary-decimal digital watch with calendar, alarm, and timer functions, and it has low power consumption. Addresses and data are transmitted serially via a two-wire bidirectional bus. This microcircuit is used to calculate the real-time hours, minutes, and seconds, as well as the day of the week, date, month, and year. The last day of each month is automatically adjusted for months with fewer than 31 days, including leap year corrections. The watch function uses the 24-hour system. The microcircuit IN1363 has a built-in power control circuit. When the power supply voltage is detected to be <1V, it generates a bit signal indicating that the real-time information may be inaccurate.

Applications

• Real-time clock
• Calendar function
• Alarm function
• Timer function
• Interrupt function
• Serial interface applications
• Two-wire bidirectional bus data transfer

Key features

• Computes seconds, minutes, hours, day of week, date, month, and year with leap-year compensation (valid through 2100)
• 400 kHz two-wire serial interface
• Programmable square-wave output
• Programmable alarm, timer, and interrupt functions
• Automatic power-fail detection
• Current consumption less than 450 nA at 2V supply with oscillator running
• Operating temperature range: -40°C to +85°C