MAX3160/MAX3161/MAX3162 are programmable RS-232/RS-485/422 multiprotocol transceivers.
The MAX3160, MAX3161, and MAX3162 are pin‑programmable transceivers that can operate as a 2TX/2RX RS‑232 interface or a single RS‑485/422 transceiver (MAX3162 supports both simultaneously). They feature a proprietary low‑dropout transmitter stage, dual charge‑pump, true fail‑safe receivers, and selectable slew‑rate settings to reduce EMI.\n\nThese devices are offered in 20‑pin, 24‑pin, and 28‑pin SSOP packages and operate over commercial (0 °C to +70 °C) and extended (‑40 °C to +85 °C) temperature ranges. Electrical specifications include a supply range of +3 V to +5.5 V, 1 µA shutdown current, and data rates up to 1 Mbps in RS‑232 mode and 10 Mbps in RS‑485/422 mode.
| Shutdown current | 1 µA |
|---|---|
| Maximum data rate (RS‑232) | 1 Mbps |
| Maximum data rate (RS‑485/422) | 10 Mbps |
| Operating temperature range (commercial) | 0 °C to +70 °C |
| Operating temperature range (extended) | -40 °C to +85 °C |
| Package types | 20‑pin, 24‑pin, 28‑pin SSOP |
| Input voltage tolerance | V+ and V- max 7 V, diff ≤13 V |
| Fail‑safe receiver | Logic‑high output when inputs open or shorted |
Drive the SHDN pin low to shut down the transmitters and charge pump.
Up to 1 Mbps in RS‑232 mode and up to 10 Mbps in RS‑485/422 mode.
The MAX3162 is configured as a 2TX/2RX RS‑232 interface and a single RS‑485/422 transceiver simultaneously.