Tudi MAX3079EASD-TUDI

The MAX3079E is an RS-485/RS-422 transceiver with one driver and one receiver. It includes protection circuitry that ensures a logic-high receiver output when the receiver inputs are open-circuited or shorted to ground. When all drivers on the terminated bus are disabled (high impedance), the receiver output is logic high. These devices feature hot-plug capability to eliminate spurious transitions on the bus during power-up or hot insertion. The MAX3079E rise time is pin-selectable for 250kbps, 50kbps, and 15Mbps operation.

The MAX3079E supports selectable half-duplex or full-duplex operation. It also allows independent programming of the receiver and transmitter output phases via separate pins. The MAX3079E receiver input impedance is 1/8 unit load, allowing up to 256 drivers on the bus.

• Robust performance protection
• ±15kV HBM ESD protection on I/O pins
• True fail-safe receiver, maintains EIA/TIA-485 compatibility
• Enhanced data rate for improved data transmission
• DE and RE hot-swap input architecture
• Flexible design features
• Full/half-duplex operation pin-selectable
• Phase control for wire-reversal correction
• Up to 256 transceivers on bus
• Industry-standard SO and DIP packages
• Low-current shutdown mode for power saving

• Lighting systems
• Industrial control
• Telecommunications
• Security systems
• Instrumentation