EDN

Building A Synchronous Clock

The quartz clocks which have dominated time-keeping for the past 20 years or so have one problem: their errors, although slight, are cumulative. The quartz clocks which have dominated time-keeping for ...
EDN

Modified clock filters improve at-speed test

The push for higher performance at lower power and cost has driven the VLSI industry towards System-on-Chip (SoC) integration resulting in designs with multiple clocks. It is common to see blocks that ...
MIT Technology Review

A Synchronous Clock Made of Bacteria

It’s not your typical clock. Rather than a quartz movement and sweeping second hand, the heart of this device is a colony of genetically engineered bacteria. A deceptively simple circuit of genes ...
Design-Reuse

Source-synchronous clocks pose challenges

As system-on-chip (SoC) devices are called upon to perform more computation-intensive functions, the amount of data, and the speed with which that data must be moved to and from peripheral devices, is ...
Nature

Clocks Worked from the Electric Supply Mains

WHEN a house is supplied with alternating current electricity on the time-controlled system, it is possible to use an electric clock which keeps almost exact ...
Semiconductor Engineering

Globally Asynchronous, Locally Synchronous Clocks

Typical IC clocking schemes are under stress in complex chip/chiplet designs, where multiple compute elements may not be operating at the same frequency consistently. Some cores may be powered down to ...
Electronic Design

Troubleshoot High-Speed Buses By Clearing "Clock Scheme Fog"

Understand how double-pumped, quad-pumped, and source-synchronous devices work, and you can capture the right data at the right time. High-speed digital buses continuously evolve. Not only are they ...
Hackaday

clock movement

We love a good clock project, and [byeh_ in] has one with a design concept we don’t believe we have seen before. The Trace Line Clock has smooth lines and a clean presentation, with no sockets or ...