The National Instruments part number 778538-01 corresponds to the PXI-6551 Digital Waveform Instrument, designed for advanced digital signal applications. This instrument features an impressive memory capacity of 1 MBit per channel and an onboard memory size of 4 MBytes dedicated to both acquisition and generation tasks. The PXI-6551 integrates the functionality of a digital analyzer and waveform generator, making it particularly well-suited for critical applications such as memory chip functional testing.

With 20 channels that support versatile direction control, the 778538-01 delivers exceptional communication capabilities. The programmable function interface comprises four channels, each with per-channel direction control. The acquisition channels are equipped with two voltage comparators and provide data, STROBE, and programmable function input (PFI) options. The instrument offers programmable threshold settings that operate within a voltage range of -2.0 V to 5.5 V. It also features an error FIFO depth of 4,094, allowing for the management of up to 255 repeated errors at a maximum sampling speed of 50 MHz.

Compact and designed to occupy a single 3U CompactPCI slot, the PXI-6551 measures 18.6 cm x 13.1 cm (7.32 in x 5.16 in) and weighs 375 g (13.2 oz). The operating temperature range is from 0 °C to 55 °C, while it can withstand storage temperatures from -20 °C to 70 °C. The recommended calibration interval for this instrument is two years, and it requires a warm-up time of just 15 minutes prior to operation. The PXI-6551 is backed by a three-year warranty, ensuring reliability in demanding industrial environments.