Real Time Clock Module RTC DS1302

DS1302 Real Time Clock Module Overview: The DS1302 Real-Time Clock Module provides a DS1302 real-time clock with a 32 kHz crystal and on-board battery backup, all in a small SIP module that can be easily plugged into a breadboard. The DS1302 provides seconds, minutes, hours, date, day of week and year with leap-year compensation up to the year 2100. You can use 24-hour mode or 12-hour mode with AM/PM indication and there are 31 bytes of RAM that are also battery-backed. BASIC Stamp 2 example code is available under Downloads, and a Propeller Spin object is linked under Additional Resources. Features: - On-board CR1220 battery holder - SPI interface supports 3-wire or 4-wire synchronous serial connection - Wide operating voltage supports 3.3V and 5V microcontrollers - Convenient SIP header makes breadboarding easy - Coin-cell battery included Application Ideas: - Electronic Clock - Datalogger - Sprinkler Control Timer NOTE: Do not enable the on-board DS1302 IC’s trickle-charging circuit. Because this module contains a lithium coin-cell battery for backup, enabling the trickle-charging circuit could damage the battery and/or module. DS1302 Real Time Clock Module Key Specifications: - Voltage requirements: 3.3-5 VDC - Current requirements: 3.2 mA @ 5 VDC - Communication: 3 or 4-wire Synchronous Serial (SPI) Interface - Dimensions: 1.22 x 0.6 in (31.2 x 15.5 mm) - Operating temperature range: +32 to +158 °F (0 to +70 °C) - Not RoHS compliant