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STR485E Datasheet 3.3V RS485 compatible

Manufacturer: STMicroelectronics

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General Description

The STR485E is a low power differential line transceiver for data transmission standard RS485 applications in half-duplex mode.

Data and enable signals are compatible with 1.8 V or 3.3 V supplies.

Two speeds are selectable through SLR pin: fast data rate up to 20 Mbps or slow data rate for extended cable running to 250 kbps.

Overview

STR485E Datasheet 3.3 V RS485 compatible with 1.8 V I/Os and selectable speed 20 Mbps or 250 kbps DFN10 3 x 3 Product status link.

Key Features

  • Half-duplex RS485 transceiver.
  • 1.65 V to 3.6 V supply for data and enable signals.
  • 3 V to 3.6 V supply for bus supply.
  • High speed: up to 20 Mbps data rate.
  • Low speed selected by SLR pin : 250 kbps.
  • Up to 128 transceivers on the bus @ 125 °C.
  • Fail safe receiver (bus open, idle and shorted).
  • Thermal shutdown protection.
  • Low quiescent current in shutdown mode.
  • Extended temperature range : -40 °C to +125 °C.

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