Abstract :
A new logic State Analyzer (Model 1601L) that tests logic circuitry has been introduced by Hewlett-Packard. It collects data on the fly, at rates up to 10 megabits/second, from as many as twelve parallel lines, and presents the data on a CRT as sixteen consecutive 12-bit binary words. The information is stored in shift registers and can be displayed indefinitely. Triggering options are so various that the instrument can easily be made to access virtually any desired sequence in the data stream. Triggering occurs, in clock synchronism, when data matches any chosen preset word, in any format. The trigger can start the display, stop it to show what happened before the trigger, or start a counter to delay the display by any preset number of clock cycles (up to 99,999) after trigger word occurs. A new probe system yields better ways to probe typical close-packed logic circuitry. New probes are small enough for side-by-side connection on a DIP.
