HP / Keysight / Agilent 545A Overview
The low-cost instrument-on-a-chip 545A requires little operator orientation, no adjustments, and no control setting. Just place the probe tip on a gate, ROM, address bus, or I/O port and read HIGHs, LOWs, open circuits or bad levels, single pulses, or pulse trains. The simple, unambiguous, one-lamp indicator allows 360-degree viewing to clearly and quickly show the state of the circuit under test without time-consuming interpretation.
Features
- Variable threshold levels
- Blinks at a constant rate (about 10 MHz) to indicate activity
- High input impedance helps avoid circuit loading