
Shanghai Leiditech Electronic Technology Co., Ltd
Overview
The SP485 is a high-speed transceiver for half-duplex communication for RS-485/RS-422 communication that contains a driver and a receiver.
The SP485 has fail-safe circuit. The low slew rate driver reduces EMI and back-off due to improper termination matching cables and achieves up to 2Mbps Error-free data transmission. With 15kV ESD protection.
SP485 are rated for industrial (-40 to +85ºC) operating temperatures. Receivers have exceptionally high input impedance, which places only 1/8th the standard load on a shared bus. Up to 256 transceivers may coexist while preserving full signal margin.
FEATUREs
● The I/O pins are protected against electrostatic discharge: ±15kV HBM
All other pins are protected against 3 levels of electrostatic discharge (ESD): ±8kV HBM
● up to 256 devices on the bus
● +5V operating voltage (+3.3V supply, transmission rate maximum recommended 500Kbps).
● With slope limiting function, the maximum data rate is 2Mbps
● Weak current shutdown mode operating current: 1nA
● Current limiting and thermal shutdown for driver overload protection
● Package: SOP8, DIP8
APPLICATION
● Smart Instrumentation
● Industrial process control
● Building automation networks
● Motor control
● EMI sensitive transceiver applications