Texas Instruments has placed the SN65HVD22D into Last Buy status. No official replacement has been listed by TI, so buyers should qualify a pin-compatible alternate or secure a last-time-buy quantity.
500 kbps signalling with 130 mV of receiver margin
The SN65HVD22D supports a data rate of 500 kbps over RS-485 or RS-422 networks, with a single driver and single receiver on a half-duplex bus. The 130 mV of receiver hysteresis provides noise rejection on long cable runs or in electrically noisy industrial environments, reducing the chance of false triggering from coupled transients.