The HP/Agilent 54642D is a 500 MHz mixed-signal oscilloscope that simultaneously captures and analyzes up to 18 signals across 2 analog and 16 digital channels. Built for engineers working with embedded systems and microcontroller designs, it combines oscilloscope and logic analyzer functionality in a single instrument. The 2 GSa/s sample rate and 8 Mpts deep memory (MegaZoom) enable detailed examination of complex waveforms without performance loss. A high-definition display delivers superior horizontal resolution for visualizing subtle signal details.
Technical Specifications
Analog Channels
• 2 channels at 500 MHz bandwidth
• 2 GSa/s maximum sample rate
• 8-bit vertical resolution
• 1 MΩ ± 2% input impedance in parallel with 15 pF ± 2 pF
• AC, DC, and GND coupling
Digital Channels
• 16 channels organized into two pods (D0–D7, D8–D15)
• 100 kΩ ± 2% input impedance at probe tip
• ~8 pF input capacitance
• ±40 V peak (CAT I) maximum input voltage
• ±10 V dynamic range about threshold
• 500 mV peak-to-peak minimum input voltage swing
• Threshold selections: TTL, CMOS, ECL, user-definable per pod
• Threshold accuracy: +(100 mV + 3% of threshold setting)
• 2 ns typical channel-to-channel skew, 3 ns maximum
Memory & Display
• 8 Mpts deep memory with MegaZoom technology
• High-definition display with superior horizontal resolution
• Infinite persistence mode
– Key Features
• Protocol-aware triggering: I²C, SPI, LIN, CAN, USB
• Multiple trigger modes: Edge, Pulse Width, Pattern, Sequence, Duration, TV
• Waveform math functions: FFT, subtract, multiply, integrate, differentiate
• Automatic measurements via Quick Meas with integrated counter
• Cursor-based manual measurements
– Typical Applications
Embedded system debug, microcontroller signal analysis, digital signal processing, protocol validation on mixed-signal designs.
– Connectivity
RS-232 and parallel ports; optional GPIB interface for data transfer.
