接口芯片 

RS485接口

Features

? 4.5V to 5.5V Supply Voltage.

? Half-Duplex RS-422/RS-485

? Bus I/O Protection

ü ±16kV HBM ESD(1)

ü ±10V IEC ESD 61000-4-2 Contact

Discharge

ü ±10kV IEC 61000-4-2 Air Gap Discharge

ü ±2kV IEC 61000-4-4 Fast Transient Burst(2)

? Extended Industrial Temperature Range: -40°C

to 100°C

? Large Receiver Hysteresis for Noise Rejection

? Low Power Consumption

ü Low Standby Supply Current: < 2μA

ü Quiescent During Operation: < 700μA

? Glitch-Free Power-Up/Down for Hot Plug-in

Capability

? Open, Short and Idle Bus Failsafe Function

? 1/8 Unit Load Options (Up to 256 Bus Nodes)

? Low EMI 500kbps

(1) Tested and passed HBM ±8kV. ±16kV is tested not yet

due to max discharge level of ESD tester.

(2) Not tested yet.

General Description

CRS001 is a robust half-duplex RS-485

transceiver for industrial applications. The bus

pins are immune to high levels of ESD events.

(IEC 61000-4-2)

The device operates from a single 5V supply. The

wide common-mode voltage range and low input

leakage on bus pins make suitable for multi-point

applications over long cable runs.

CRS001 is available in industrial standard 8-pin

SOIC package for drop-in compatibility.

Applications

? Industrial Devices and Systems

? Electricity Meters (E-Meters)

? Inverters