The 1651B 32-Channel Logic Analyzer features state analysis enhancements to 25MHz. Its new state waveform display allows viewing an entire state acquisition at a glance to examine bus activity or processor control. The state compare mode compares state acquisitions to previously acquired state data. The state X-Y chart display permits plotting label vs. states to check A/D converters or memory coverage, and plotting label vs. label to obtain a signature of a circuit or routine. An HP-IB interface is available for remote control or hardcopy output.