Designers coping with complex design validation and characterization challenges will be aided by the C-versions of the TDS600 digital storage scopes. All models offer 5-Gsample/s performance on all channels, providing accurate edge definition and high resolution for timing measurements. Other features of the C-version units include a built-in histogram function and automatic measurement statistics. The TDS654C, TDS680C and TDS684C scopes also support Java-enabled, application-specific measurement solutions. Optional hard-disk drives and external Zip drives support greater storage capacities and quick archiving of important waveforms for design documentation.