This document introduces the MAX3386E RS-232 transceiver's features, including mixed-voltage system compatibility, enhanced ESD protection, low supply current, high data transmission rate, and low-power shutdown mode.
The MAX3386E is a three‑driver, two‑receiver RS‑232 interface device that features a split‑supply pin for mixed‑voltage operation, allowing logic levels as low as 1.8 V. It includes enhanced ESD protection on all inputs and outputs and operates at data rates up to 250 kbps while meeting EIA/TIA‑232 specifications.
The device is offered in TSSOP and SSOP packages with operating temperature ranges from –40 °C to 85 °C, and it supports low‑power shutdown modes. Detailed electrical characteristics, pin functions, and mechanical dimensions are provided for designers.
| Supply voltage range | 3 V to 5.5 V |
|---|---|
| Low‑Power shutdown modes | 1‑4 |
| ESD protection (Human‑Body Model) | 15 kV |
| ESD protection (IEC 61000‑4‑2 Air‑Gap) | 15 kV |
| ESD protection (IEC 61000‑4‑2 Contact) | 8 kV |
| Supply current (no load) | 0.3 mA (typ) |
The transceiver operates with a supply voltage from 3 V to 5.5 V.
Depending on the package, the device is rated from –40 °C to 85 °C (or 0 °C to 70 °C for the other package).