The Maxim MAX481‑MAX491 and MAX1487 families are low‑power, slew‑rate‑limited RS‑485/RS‑422 transceivers. Each device contains a driver and a receiver, with half‑duplex or full‑duplex operation depending on the part. Features include low‑current shutdown, fail‑safe receiver, and optional quarter‑unit‑load input impedance for high‑node bus configurations.
The document provides absolute maximum ratings, DC electrical characteristics, switching timing, pin descriptions, and package dimensions for the various 8‑pin, 14‑pin and SO‑package options. Ordering information and application notes for industrial‑control LANs, level translation and EMI‑sensitive designs are also included.
| Maximum Data Rate (Half‑duplex) | 2.5 Mbps |
|---|---|
| Package Type (MAX481) | 8‑Pin Plastic DIP |
The MAX485 operates at up to 2.5 Mbps in half‑duplex mode.