Description

       AT8583 is a CMOS real-time clock / calendar chip launched by Wuhan Xinjing Technology Co., Ltd. This chip has a built-in timer including year / month / day / hour / minute / second / percent second, which plays the role of clock in the circuit. The system can set and read the current time stored in AT8583, so as to process the data accordingly (such as billing, display, recording, etc.). Not only that, the AT8583 also comes with 240 bytes of static RAM for storing configuration data. By transmitting data between the advanced I2C bus and the system serially, the AT8583 can greatly reduce the number of wiring on the circuit board compared to the scheme using a parallel bus, which is very suitable for complex systems. AT8583 also has the function of a 6-bit BCD code event counter.

   AT8583 currently offers three packages: DIP-8, SOP-8 and TSSOP-8. It can be used in mobile phone communication products, portable instruments, telecommunications billing, time attendance, computer motherboards, microcomputer peripherals and so on. Electronics.

Device characteristics

• Wide operating voltage range 2.6 ~ 6V

• RAM data holding power supply voltage 1 ~ 6V

• 50μA maximum operating current when the bus is idle

• 4-year calendar clock, selectable 24-hour or 12-hour format, external oscillator can input 32.768KHz or 50Hz signal as time base

• Programmable alarm, timing and interrupt functions

• Fully compatible with Philips PCF8583

Pin arrangement and description

Typical application circuit