The National Instruments part number 781043-01 designates the PCIe-6320 Multifunctional I/O Device, a versatile data acquisition solution within the PCIe X series. This module delivers high-performance sampling capabilities, achieving up to 250,000 samples per second with a precision of 16 bits. It offers 16 single-ended channels, which can be configured as 8 differential analog input channels, enhancing noise immunity and signal integrity. The PCIe-6320 supports a wide range of input signal amplitudes from ±0.2 Volts to ±10 Volts, with a high input impedance of 10 GΩ during operation to minimize loading on connected signal sources. The analog inputs are robustly protected against overvoltage conditions of up to ±25 Volts.

In addition to its analog capabilities, the 781043-01 includes 24 programmable digital I/O channels, allowing users to configure them as either input or output. This digital I/O interface operates at a maximum clock frequency of 1 MHz and incorporates a debouncing filter. The digital pins can handle voltages up to ±20 V on two channels. The module is further equipped with four 32-bit general-purpose counters, capable of edge counting, pulse width measurement, period measurement, and quadrature encoder signal processing. These counters can support clock frequencies of 100 MHz, 20 MHz, and 100 kHz, ensuring precise timing for varied applications.

The PCIe-6320 requires a PCI Express x1 interface and can operate at either 3.3 V or 12 V DC. Power consumption is rated at 1.4 watts when operating at 3.3 V and approximately 8.6 watts at 12 V. The module measures 9.9 × 16.8 cm and weighs 104 g, and it is intended for indoor use only due to the absence of an Ingress Protection rating. The recommended operating environment has a maximum temperature of 50 degrees Celsius and relative humidity of 90%.