The National Instruments part number 778991-01 designates the PCI-6561 Digital Waveform Device, a high-performance solution tailored for advanced data acquisition and generation applications. This PCI device is equipped with 16 data channels that support both single data rate (SDR) and double data rate (DDR) modes, providing essential flexibility for high-speed data transfers and precise timing synchronization. The device features a programmable function interface (PFI) on data acquisition channels, specifically PFI <0..3>, and includes DDC CLK OUT and additional PFI channels for enhanced timing control and signal management during waveform generation. The PCI-6561 has a maximum power requirement of 16.5 W, consuming 1.7 A at +3.3 VDC, 1.1 A at +5 VDC, 0.4 A at +12 VDC, and 0.05 A at -12 VDC. With dimensions of 12.6 cm × 35.5 cm (4.96 in × 13.9 in) and a weight of 410 g (14.5 oz), the device is designed for easy integration into various setups. Featuring an SMB jack I/O connector for external sample clocks and triggers, the PCI-6561 employs Synchronization and Memory Core (SMC) technology with onboard memory capacities of 2 Mbit, 16 Mbit, and 128 Mbit per channel. The module meets numerous safety and electromagnetic standards, making it suitable for both measurement and control applications in laboratory settings while ensuring minimal electrical interference. It is compatible with leading application software, including LabVIEW, LabWindows™/CVI™, Measurement Studio, Microsoft Visual C/C++, and .NET (C# and VB.NET). Operating effectively in ambient temperatures ranging from 0°C to 45°C with a relative humidity of 10% to 90% non-condensing, the PCI-6561 adheres to the IEC 60068-2-56 standard, while its storage conditions are compliant with the IEC 60068-2-2 standard, allowing for temperatures between -20°C to 70°C and a relative humidity of 5% to 95% non-condensing. The device is rated for operation at altitudes up to 2000 meters above sea level and has a pollution degree rating of 2.

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