The 400 Mbps data rate per channel sets the maximum serial bitstream the receiver can recover. For a 24-bit parallel bus serialised at 24:1, that translates to roughly 16.7 MHz parallel clock — enough for many video links, high-speed ADC data capture, and backplane interconnects. The 50 mV hysteresis is the differential input threshold window that prevents output chatter when the cable is idle or the signal is degraded by long traces. In practice, this hysteresis means the receiver tolerates common-mode noise and reflections better than a zero-threshold comparator, which is why this part is a common choice for point-to-point LVDS links in noisy industrial environments.
There is no last-time-buy risk for new designs. For dual-sourcing resilience, the 65LVDS family includes pin-compatible receiver variants — check the base product number 65LVDS9637 for ordering-code options that match your temperature grade and package requirements.