Overview

This RTC2 add-on board provides a battery-backed real-time clock based on the DS1307 and interfaces to microcontrollers by I2C serial bus. The board is designed to plug onto MikroElektronika's PIC development and prototyping boards, although could also be interfaced to your own circuits and other development boards.

PCF8583 Clock/Calendar with 56 x 8-bit RAM

The DS1307 serial real-time clock (RTC) is a low-power, full binary-coded decimal (BCD) clock/calendar plus 56 bytes of non-volatile static RAM. Address and data are transferred serially through an I2C, bidirectional bus. The clock/calendar provides seconds, minutes, hours, day, date, month, and year information. The end of the month date is automatically adjusted for months with fewer than 31 days, including corrections for leap year. The clock operates in either 24-hour or 12-hour format with AM/PM indicator. The DS1307 has a built-in power-sense circuit that detects power failures and automatically switches to the backup supply. Timekeeping operation continues while the part operates from the backup supply.

Features

• Based on Maxim (formerly Dallas) DS1307 real-time clock.
• Full binary-coded decimal (BCD) clock/calendar plus 56 bytes of NV SRAM.
• Interfaces to microcontrollers using I2C serial interface.

• Connects directly to MikroElektronika's PIC development and prototyping boards.
• Supported by example programs provided with MikroElektronika's mikroBASIC, mikroC and mikroPascal PRO for PIC compilers.