RS-485 Transceivers with Low-Voltage Logic Interface

The MAX13430E–MAX13433E are full- and half-duplex RS-485 transceivers that feature an adjustable low-voltage logic interface for operation in multivoltage systems. This allows direct interfacing to low-voltage ASIC/FPGAs without extra components. The MAX13430E–MAX13433E RS-485 transceivers operate with a VCC voltage supply from +3V to +5V. The low-voltage logic interface operates with a voltage supply from +1.62V to VCC.

The MAX13430E/MAX13432E feature reduced slew-rate drivers that minimize EMI and reduce reflections caused by improperly terminated cables, allowing error-free data transmission up to 500kbps. The MAX13431E/MAX13433E driver slew rates are not limited, enabling data transmission up to 16Mbps. The MAX13430E/MAX13431E are intended for half-duplex communications, and the MAX13432E/MAX13433E are intended for full-duplex communications.

The MAX13430E/MAX13431E are available in 10-pin µMAX® and 10-pin TDFN packages. The MAX13432E/MAX13433E are available in 14-pin TDFN and 14-pin SO packages.

Applications

* HVAC * Industrial Control Systems * Motor Control * Portable Industrial Equipment

* Wide +3V to +5V Input Supply Range

* Low-Voltage Logic Interface +1.62V (min)

* Ultra-Low Supply Current in Shutdown Mode 10µA ICC (max), 1µA IL (max)

* Thermal Shutdown Protection

* Hot-Swap Input Structures on DE and RE

* 1/8-Unit Load Allows Up to 256 Transceivers on the Bus

* Enhanced Slew-Rate Limiting (MAX13430E/MAX13432E)

* Extended ESD Protection for RS-485 I/O Pins

* ±30kV Human Body Model

* ±15kV Air-Gap Discharge per IEC 61000-4-2

* ±10kV Contact Discharge per IEC 61000-4-2

* Extended -40°C to +85°C Operating Temperature Range

* Space-Saving TDFN and µMAX Packages