MAX3430ESA+, Maxim Integrated RS-422/RS-485 transceiver, half-duplex, 1/1 driver/receiver, 250 kbps data rate, 3V-3.6V supply, 8-SOIC, -40°C to +85°C.
| Parameter | Value |
|---|---|
| Type | Transceiver |
| Mounting type | Surface Mount |
| Voltage | 3V ~ 3.6V |
| Protocol | RS422, RS485 |
| Operating temperature | -40°C ~ 85°C |
| Duplex | Half |
| Package | Tube |
| Data rate | 250kbps |
| Case | 8-SOIC (0.154\", 3.90mm Width) |
| Receiver hysteresis | 25 mV |
| Number of drivers (Receivers) | 1/1 |
The MAX3430ESA+ is listed as Active and ROHS3 Compliant. For BOM planning, treat it as a current-production part with no imminent obsolescence risk.
The receiver includes 25 mV of hysteresis, which helps reject noise on long cable runs. For a 250 kbps link in an electrically noisy factory environment, that hysteresis reduces the chance of bit errors from coupled interference.
Yes. The supply range of 3V to 3.6V means the part operates from a 3.3V rail and is directly compatible with 3.3V RS-485 buses. It is not 5V-tolerant on the supply or logic inputs.
It is half-duplex. The driver and receiver share the same differential pair, so the bus direction must be controlled by the microcontroller's RE/DE pins.