# Agilent 54642A 500 MHz 2-Channel Oscilloscope (Pre-Owned) # Agilent 54642A 500 MHz 2-Channel Oscilloscope (Pre-Owned) ## Key Features At A Glance - Bandwidth from 60 MHz to 500 MHz across the family with up to 2 GSa/s sample rate on higher-bandwidth models - Available as 2-channel, 4-channel, and 2+16-channel Mixed Signal Oscilloscope (MSO) configurations - 4 MB to 8 MB MegaZoom deep memory standard — not a special mode, available on every acquisition - Patented high-definition display with 32 intensity levels and up to 25 million vectors/sec update rate - Standard serial triggering on CAN, LIN, I2C, SPI, and USB across all family models - Optional N2758A CAN trigger module extends MSO triggering to CAN 2.0A/B frames with user-specified IDs and data - Built-in 1.44 MB floppy drive, standard RS-232 and parallel ports, optional N2757A GPIB interface module - Built-in help system in 11 languages accessed by pressing and holding any front-panel key The Agilent 54600-Series is a family of bench oscilloscopes designed for engineers working with mixed analog and digital designs. The series spans nine models covering 60 MHz, 100 MHz, 350 MHz, and 500 MHz bandwidth tiers in 2-channel, 4-channel, and 2+16-channel Mixed Signal Oscilloscope (MSO) configurations. The MSO models uniquely combine the detailed signal analysis of an oscilloscope with the multi-channel timing measurements of a logic analyzer, allowing simultaneous observation of up to 18 channels — 2 analog plus 16 digital — on one instrument. Per the product datasheet, the 54600-Series is targeted at verifying and debugging designs that include A/Ds, D/As, DSPs, and embedded 8- or 16-bit microcontrollers. The MSO configurations specifically address mixed-signal applications where high-speed digital control signals must be correlated with slower analog signals on the same timebase — applications the datasheet identifies including microcontroller and DSP-based designs in industrial, communications, automotive, and consumer products. The 4-channel 54624A is positioned for designs with heavy analog content such as anti-lock brake testing and multi-output power supply monitoring. ## Brand Heritage Agilent Technologies was spun off from Hewlett-Packard in 1999 as HP's test, measurement, semiconductor, and chemical analysis business. In 2014, Agilent further separated its electronic measurement business into Keysight Technologies, which is the current corporate successor for the test and measurement product lines including the 54600-Series oscilloscope family. Instruments originally branded as Agilent and HP in this product line trace directly to the present Keysight organization for legacy support and calibration continuity. ## Compare Other Models in This Series The 54600-Series comprises nine models organized into two bandwidth tiers. The 54620-Series covers 60 MHz and 100 MHz at 200 MSa/s sample rate with 4 MB MegaZoom memory. The 54640-Series covers 350 MHz and 500 MHz at 2 GSa/s interleaved sample rate (1 GSa/s per channel) with 8 MB MegaZoom memory. Within each bandwidth tier, configurations are available as 2-channel analog, 4-channel analog (54624A only), or 2+16-channel Mixed Signal Oscilloscope (MSO) variants designated with a 'D' suffix. Per the datasheet, the model selection turns on three application factors: bandwidth required for the signal frequencies under test, channel count needed to observe simultaneous events, and whether digital bus content must be correlated with analog signals (the MSO requirement). The 'A' suffix indicates analog-only models; the 'D' suffix indicates the 2+16-channel MSO configuration. The 54624A is the only 4-channel analog model in the family. Each pre-owned 54600-Series model listed below is its own dedicated product page with condition-matched pricing. Configurations differ in bandwidth, channel count, sample rate, and memory depth — and the specific 'A' versus 'D' designation determines whether the instrument includes the 16 digital MSO channels. Confirm the model number matches your existing test procedure or fixture before ordering, as legacy ATE systems frequently specify the exact model by name. The 54642D is the top model in the family — 500 MHz bandwidth, 2 GSa/s interleaved sample rate, 8 MB MegaZoom memory, plus 2 analog channels and 16 digital channels for full mixed-signal capability. Per the datasheet, this configuration is positioned for DSP and high-speed microcontroller designs where simultaneous observation of fast analog signals and multi-bit digital buses is required. The 500 MHz bandwidth provides approximately 700 ps calculated rise time, and the instrument includes 1 ns peak detection at maximum sample rate. The bandwidth tier is the primary differentiator across the family. The 54621A/D (60 MHz) and 54622A/D (100 MHz) and 54624A (100 MHz, 4-channel) share the 200 MSa/s sample rate, 4 MB memory, 5 ns peak detection, and approximately 3.5 to 5.8 ns calculated rise times of the 54620-Series. The 54641A/D (350 MHz) and 54642A/D (500 MHz) share the 2 GSa/s interleaved sample rate, 8 MB memory, 1 ns peak detection, and faster rise times (700 ps to 1.0 ns) of the 54640-Series. The 54640-Series also adds a selectable 50 Ω input on analog channels not present on the 54620-Series. Within each bandwidth tier, the 'A' versus 'D' choice determines mixed-signal capability. The MSO ('D') models add 16 digital channels with TTL, CMOS, ECL, or user-definable threshold groupings (Pod 1: D7-D0, Pod 2: D15-D8), threshold accuracy of ±(100 mV + 3% of setting), and 5 ns glitch detection on digital channels. The 4-channel 54624A is unique in offering four simultaneous analog acquisitions at 100 MHz bandwidth without the MSO digital channels — the configuration to select when the application is heavy analog (multi-rail power supply monitoring, anti-lock brake test) rather than mixed-signal embedded debug. See the comparison table for the full specification matrix across all nine models. Model Bandwidth Max Sample Rate Max Memory **54642A** 500 MHz 2 GSa/s 8 MB 54621A 60 MHz 200 MSa/s 4 MB 54621D 60 MHz 200 MSa/s 4 MB 54622A 100 MHz 200 MSa/s 4 MB Additional differences in specifications beyond the few shown above are not listed here — see each model's full specifications below. ## Accessories Supplied - User's Guide (localized), Service Manual, Programmer's Manual - Power cord - Two 10073C 10:1 divider probes with readout - Accessories pouch and front panel cover - IntuiLink software RS-232 cable ## Product Core & Specifications Specification Detail Acquisition: Analog Channels Max Sample Rate 54621A/D, 54622A/D, 54624A: 200 MSa/s; 54641A/D, 54642A/D: 2 GSa/sec interleaved, 1 GSa/sec each channel Max Memory Depth 54621A/D, 54622A/D, 54624A: 4 MB interleaved, 2 MB each channel; 54641A/D, 54642A/D: 8 MB interleaved, 4 MB each channel Vertical Resolution 8 bits Peak Detection 54621A/D, 54622A/D, 54624A: 5 ns; 54641A/D, 54642A/D: 1 ns @ max sample rate Averaging Selectable from 2, 4, 8, 16, 32, 64 ... to 16383 High Resolution Mode 54621A/D, 54622A/D, 54624A: 12 bits when ≥500 μs/div; 54641A/D, 54642A/D: 12 bits when ≥100 μs/div Filter Sinx/x interpolation (single shot BW = sample rate/4 or bandwidth of scope, whichever is less) with vectors on Acquisition: Digital Channels (54621D, 54622D, 54641D, 54642D only) Max Sample Rate 54621D, 54622D: 400 MSa/s interleaved, 200 MSa/s each channel; 54641D, 54642D: 1 GSa/s Max Memory Depth 54621D, 54622D: 8 MB interleaved, 4 MB ea. channel; 54641D, 54642D: 4 MB Vertical Resolution 1 bit Glitch Detection (min pulse width) 5 ns Vertical System: Analog Channels Bandwidth (-3dB) 54621A/D: dc to 60 MHz; 54622A/D, 54624A: dc to 100 MHz; 54641A/D: dc to 350 MHz; 54642A/D: dc to 500 MHz Calculated Risetime 54621A/D: ~5.8 ns; 54622A/D, 54624A: ~3.5 ns; 54641A/D: ~1.0 ns; 54642A/D: ~700 ps Single Shot Bandwidth 54621A/D, 54622A/D, 54624A: 50 MHz; 54641A/D: 350 MHz maximum; 54642A/D: 500 MHz maximum Range 54621A/D, 54622A/D, 54624A: 1 mV/div to 5 V/div; 54641A/D, 54642A/D: 2 mV/div to 5 V/div Maximum Input CAT I 300 Vrms, 400 Vpk, CAT II 100 Vrms, 400 Vpk. With 10073C/10074C 10:1 probe: CAT I 500 Vpk, CAT II 400 Vpk. 5 Vrms with 50 Ω input Input Resistance 54621A/D, 54622A/D, 54624A: 1 MΩ ±1%; 54641A/D, 54642A/D: 1 MΩ ±1%, 50 Ω selectable Input Capacitance 54621A/D, 54622A/D, 54624A: ~14 pF; 54641A/D, 54642A/D: ~13 pF Coupling 54621A/D, 54622A/D, 54624A: ac, dc, ground; 54641A/D, 54642A/D: ac, dc BW Limit 54621A/D, 54622A/D, 54624A: ~20 MHz selectable; 54641A/D, 54642A/D: ~25 MHz selectable ESD Tolerance ±2 kV DC Vertical Gain Accuracy ±2.0% full scale Vertical System: Digital Channels (MSO Models Only) Number of Channels 16 Digital - labeled D15 - D0 Threshold Selections TTL, CMOS, ECL, user-definable (selectable by pod) User-Defined Threshold Range ±8.0 V in 10 mV increments Maximum Input Voltage ±40 V peak CAT I Threshold Accuracy ±(100 mV + 3% of threshold setting) Input Dynamic Range ±10 V about threshold Minimum Input Voltage Swing 500 mV peak-to-peak Input Capacitance ~8 pF Input Resistance 100 kΩ ±2% at probe tip Channel-to-Channel Skew 2 ns typical, 3 ns maximum Horizontal Range 54621A/D, 54622A/D, 54624A: 5 ns/div to 50 s/div; 54641A/D, 54642A/D: 1 ns/div to 50 s/div Resolution 54621A/D, 54622A/D, 54624A: 25 ps; 54641A/D, 54642A/D: 2.5 ps Reference Positions Left, Center, Right Modes Main, Delayed, Roll, XY Trigger System Modes Auto, Triggered (normal), Single, Auto level (54621A/D, 54622A/D, 54624A only) Holdoff Time ~60 ns to 10 seconds Selections Edge, Pulse Width, Pattern, TV, Duration, Sequence, CAN, LIN, USB, I²C, SPI Display System Display 7-inch raster monochrome CRT Throughput 25 million vectors/sec per channel with 32 levels of intensity Resolution 255 vertical by 1000 horizontal points (waveform area), 32 levels of gray scale Built-in Help System Key-specific help in 11 languages Measurement Features Voltage Measurements (analog only) Peak-to-Peak, Maximum, Minimum, Average, Amplitude, Top, Base, Overshoot, Preshoot, RMS (DC) Time Measurements Frequency, Period, +Width, -Width, Duty Cycle, Rise time, Fall time, X at Max, X at Min, Delay, Phase Counter Built-in 5 digit frequency counter on any channel; counts up to 125 MHz Waveform Math One function of 1-2, 1\*2, FFT, differentiate, integrate FFT Points Fixed at 2048 points FFT Window Rectangular, Flattop, Hanning Storage Save/Recall (non-volatile) 54621A/D, 54622A/D, 54624A: 3 setups and traces; 54641A/D, 54642A/D: 4 setups and traces Floppy Disk 3.5" 1.44 MB double density; image formats: TIF, BMP; data: CSV I/O RS-232 (Serial) Standard Port 1 port: XON or DTR; 8 data bits; 1 stop bit; parity = none; 9600, 19200, 38400, 57600 baud rates Parallel Standard Port Printer support Optional GPIB Module (N2757A) Fully programmable with IEEE488.2 compliance General Characteristics **Important:** Maximum input on analog channels: CAT I 300 Vrms, 400 Vpk; CAT II 100 Vrms, 400 Vpk. With 10073C/10074C 10:1 probe: CAT I 500 Vpk, CAT II 400 Vpk. 5 Vrms with 50 Ω input on 54641A/D and 54642A/D models.**Important:** The 54640-Series requires software revision 1.0 or later. The 54620-Series requires software revision 1.5 or later. The system software is stored in FLASH ROM that can be upgraded easily from the built-in floppy disk drive.**Important:** Specifications are valid after a 30-minute warm-up period and within ±10 °C from firmware calibration temperature.**Important:** Maximum sample rate and memory are interleaved; deep memory is standard, no options needed.**Important:** The N2758A CAN trigger module is compatible only with the MSO models: 54621D, 54622D, 54641D, and 54642D.Recommended pairing: the N2758A CAN trigger module extends the MSO models (54621D, 54622D, 54641D, 54642D) beyond the standard CAN SOF trigger, enabling isolation of CAN 2.0A/B frames by user-specified IDs and data values for automotive and industrial network debug. ## About this used unit - Warranty included - Functional verification included - Standard Calibration Upgrade Options: No Calibration Required, NIST Traceable, Z540.1 or ISO 17025 with Data, Z540.3 Guardbanding with Data. - Note that unnecessary accessories may not be included (contact Test Architect to confirm). **Please review the Manufacturer's Data Sheet to verify published specifications. Feedback on this webpage is always welcome — please reach out to your Test Architect at any time for questions or concerns. Thank you, we truly appreciate you being our customer.** ## Details - **Price:** 1295.0 USD - 1557.5 USD - **Vendor:** Agilent Technologies - **Type:** Ms Oscilloscope - **Tags:** Agilent, Agilent Keysight, Digital, Manufacturers, Oscilloscopes, product_manual_group_1, Product_used ## Variants | Variant | Price | Available | |---------|-------|-----------| | None | 1295.00 USD | In stock | | NIST Traceable | 1482.50 USD | In stock | | NIST Traceable with Full Data | 1520.00 USD | In stock | | ISO IEC 17025 Accredited | 1557.50 USD | In stock | ## Images - 54642A Agilent Digital Oscilloscope --- > Source: [ValueTronics](https://valuetronics.com/products/54642a-agilent-digital-oscilloscope-used) > Updated: 2026-05-30