RS-422/485

MS2548

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Half-duplex RS-485 Transceiver with Auto-direction Control
Overview

The MS2548 is a half-duplex RS-485 transceiver with 3.0V-5.5V power supply, which is featured with auto direction control for RS-485 isolation port. Transmitter input is cooperated with enable signal to control the chip state and drive differential bus. The chip is integrated with hot swap and overtemperature protection. The receiver input resistance is 1/4unit load, and up to 128 transceivers can be allowed on the bus. The transmitter slew rate is not limited by the MS2548, the highest transmission rate is 20Mbps.

Key Features
  • ⚫ Maximum Transmission Rate: 20Mbps
  • ⚫ Meet TIA/EIA-485A Standard
  • ⚫ Power Supply: 3.0V to 5.5V
  • 3.3V, Input Common-mode Voltage Range: 7V ~ +7V
  • 5V, Input Common-mode Voltage Range: -7V ~ +12V
  • ⚫ Operating Temperature: -40°C to 125°C
  • ⚫ Hot Swap, Power Up/Power Down Isolation
  • ⚫ Integrated Auto Direction Control, without Controlling Receiver and Transmitter State
  • ⚫ 1/4 Unit Load (Up to 128 Bus Nodes)
  • ⚫ SOP8 Package
Key Features
Isolate the RS-485 interface
Electric meter
Industrial motor drive
Industrial Controls
HVAC systems