RS-485/422, RS-232, & Multi-protocol Transceivers

Renesas has been a leader in RS‑232 and RS‑485/422 transceivers since the 1970s. Our broad portfolio delivers industry‑leading robustness, high noise immunity, and flexible package options—making it easy to find the right fit for any design.

IEC 61000 Enhanced ESD Protection

Our transceivers use advanced ESD structures to meet the highest levels of both HBM and IEC 61000‑4‑2 standards, ensuring robust protection and long‑term reliability in harsh environments.

Ruggedized Fault Protection

Designed for demanding networks, these transceivers tolerate high overvoltage conditions and offer wide CMR performance—ideal for long cable runs and electrically noisy environments.

High Speed

For robotics, motor control, and data acquisition, our high‑speed devices deliver minimal latency with tightly controlled Rx/Tx skews and consistent part‑to‑part performance.