Specifications

The HP 54645A/D at a Glance
Display shows current input signals
Eighteen (18) channels in main mode;
2 scope and 8 timing channels in
delayed mode (HP 54645D)
Indicators for peak, avg, or normal
acquisition, time base, channel
activity, trigger and acquisition status
Softkey labels
Measurement results
Channel Controls select, position, and
label inputs
Turn channels on or off individually
or in groups of 8 (HP 54645D)
Rearrange order of channels to
group related signals (HP 54645D)
Create and display labels to identify
channels (HP 54645D)
General Controls measure, save and
restore results, and configure the
oscilloscope
Make automatic time and frequency
measurements
Use cursors to make manual
measurements
Save or recall measurement
configurations or previous results
Autoscale performs simple
one-button setup of the oscilloscope
Horizontal Controls select sweep speed
and delay parameters
Sweep speeds from 5 ns to 50 s/div
(2 ns to 50s/div for HP 54645A)
Delay control moves waveform
display to point of interest
Delayed mode and delay allow
zooming in to show a portion of
waveform in detail (split screen)
Storage Keys begin and end data
acquisition
Run/Stop starts and stops continuous
acquisitions
Single performs one acquisition
Autostore accumulates and displays
the results of multiple acquisitions
Erase clears the current acquisition
and all accumulated data
Trigger Keys define what data the
oscilloscope will trigger on
Source key (HP 54645A) allows
conventional oscilloscope triggering
Edge mode allows triggering on a
positive or negative edge of any
single channel (HP 54645A/D)
Pattern mode allows triggering on a
pattern of channels either high, low,
or don’t care, with an optional single
edge qualifier (HP 54645D)
Advanced mode allows sequential
triggers, combined patterns, patterns
and edges, pattern durations, glitch
(HP 54645A/D), and TV (HP 54645D)
Softkeys extend the functionality of
command keys
Select measurement types, operating
modes, trigger specifications, label data,
and more
Channel Inputs through a flexible
probing system
Sixteen channels through a dual
8-channel cable with micro-grabbers
(HP 54645D)
Set logic levels as TTL, CMOS, ECL,
or to a user-definable voltage
(HP 54645D)
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