The iButton RTC (DS1904) is a rugged real-time clock module that can be accessed with minimal hardware. Data is transferred serially by the 1-Wire® protocol, which requires only a single data lead and ...

This product training module presentation is an overview of the Real time clocks from NXP. This training module also provides information about demo boards and application notes for real time clocks.

Like many early microcomputers, the Commodore VIC-20 did not come with an interna real-time clock built into the system. [David Hunter] has seen fit to rectify that with an add-on module as his entry ...

The DS1390/91/92/93 three- and four-wire serial-peripheral-interface bus real-time clocks feature automatic power switching, a trickle-charge output, an alarm, a microprocessor reset, a square-wave ...

This program simplifies calibrating the realtime clock in your SwissMicros calculator. There is no need to first set the clock to correct time because the program compares elapsed calculator time to ...