The MAX3185 is a complete DTE RS-232 serial port designed to meet the stringent ESD requirements of the European community. It has enhanced ESD protection, a data rate of up to 230kbps, and is suitable for desktop PC and motherboard applications.
The MAX3185 provides a complete DTE RS‑232 serial interface with three transmitters and five receivers, optimized for desktop PCs and motherboard designs. It meets stringent European ESD standards (±15 kV HBM, ±8 kV IEC 1000‑4‑2) and guarantees a data rate up to 230 kbps while drawing less than 300 µA supply current.
The device is available in 20‑pin SO and SSOP packages, is pin‑compatible with the SN75C185, and operates over a temperature range of –40 °C to +85 °C (MAX3185E). Detailed electrical characteristics, absolute maximum ratings, and recommended layout guidelines are provided for reliable integration.
| Maximum data rate | 230 kbps |
|---|---|
| Supply current (IDD) | < 300 µA |
| ESD protection (Human Body Model) | ±15 kV |
| Operating temperature range (MAX3185E) | -40 °C to +85 °C |
| Pin count | 16 pins |
The MAX3185 is guaranteed to operate at data rates up to 230 kbps.
It offers ±15 kV protection under the Human Body Model, ±8 kV IEC 1000‑4‑2 Contact Discharge, and ±15 kV IEC 1000‑4‑2 Air‑Gap Discharge.
VCC: –0.3 V to +7 V, VDD: –0.3 V to +14 V, VSS: +0.3 V to –14 V.