Real-Time klokmoduul op basis van de DS1302; *manages all timekeeping functions: real-time clock counts seconds, minutes, hours, date of the month, month, day of the week, and year with leap year *31 x 8 battery-backed general-purpose RAM *simple serial port interfaces to most microcontrollers: simple 3-wire interface *TTL compatible: VCC = 5 V *single-byte or multiple-byte (burst mode) data transfer for read or write of clock or RAM data *low power operation extends battery backup run time: 2.0 V to 5.5 V full operation *uses less than 300 nA at 2.0 V *temperature range: 0°C to +70°C