NI-9402 C Series Digital Module, Input/Output, 4-Ch, 50 ns, LV TTL, BNC (779987-01)

LVTTL, 4 Bidirectional Channels, 55 ns C Series Digital Module
The NI‑9402 is a per‑channel configurable digital I/O interface for input or output. With reconfigurable I/O (RIO) technology (CompactRIO only), you can use the LabVIEW FPGA Module to program the NI‑9402 for implementing custom, high-speed counter/timers; digital communication protocols; pulse generation; and more. Each channel features transient isolation between the I/O channels and the backplane.

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Key product
Input/Output Characteristics
Number of channels

  • 4 DIO channels

Default power-on line direction

Input

Input/output type

  • LVTTL, single-ended

Digital logic levels

  • Maximum input voltage
  • 5.25 V

Input high, VIH

  • 2 V minimum

Input low, VIL

  • 0.8 V maximum

Output high, VOH (3.4 V maximum)

  • Sourcing 100 µA
  • 3.0 V minimum
  • Sourcing 2 mA
  • 2.8 V minimum

Output low, VOL

  • Sinking 100 µA
  • 0.1 V maximum
  • Sinking 2 mA
  • 0.3 V maximum
  • Maximum I/O switching frequency
    4 channels
  • 16 MHz
  • 2 channels
  • 20 MHz

I/O propagation delay

  • 55 ns maximum, 18 ns typical

I/O pulse width distortion

  • 25 ns maximum

Input low current, IIL (VIN = 0 V)

  • -55 µA maximum

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