The HP 1650B and HP 1651B logic analyzers are new general purpose logic analyzers with improved features to accommodate next generation design tasks. they are basically the same as their predecessors the HP 1650A and HP 1651A, but now have State Compare, State Waveform and State Chart modes. They both have HP-IB capabilities in addition to RS-232C. Both analyzers are capable of 100MHz timing analysis The HP 1651B is capable of 25MHz state analysis while the HP 1650B is capable of 35MHz state analysis. The key features of the HP 165OB and HP 165lB are: Transitional or glitch timing modes Simultaneous state/state or state/timing modes lk deep memory on all channels Glitch detection on all channels Maker measurements Pattern, edge, and glitch triggering Overlapping of timingwaveforms Eight sequence levels Eight pattern recognizers One range recognizer Small lightweight probing Time and number of states tagging Pre-store State Compare State Waveform State Chart