RS422,RS485
CLM3490CSA+
CLM3490CSA+  CLM3490CSA+Normal Supply
Main Parameter

3.3V single power supply - no charge pump

Interoperable with +5V logic level

8ns Maximum delay

Pressure swing rate limit during error free data transmission

2nA Low current Off mode

-7V to+12V common mode input voltage range

Up to 32 transceivers allowed on the bus

Provide two communication methods: full duplex and half duplex

Driver overload protection - current limiting and thermal shutdown

Product Introduction

The CLM3490 has a 3.3V power supply, 10Mbps, and a slew rate limited RS-485/RS-422 transceiver for RS-485 and RS-422 communication. Each section contains a driver and a receiver. Drivers with slew rate limitations can minimize EMI (electromagnetic interference) and reduce reflections caused by improper cable end connections, allowing for error free data transmission at speeds up to 250kbps. The transmission rate with partial swing rate limitation can reach up to 2.5Mbps, while the transmission rate of CLM3490 can reach up to 10Mbps. Directly replacing international similar products with PIN without changing the circuit board or system software, achieving complete replacement compatibility. Chiplon Microelectronics has developed its own testing plan to ensure that the factory products meet or even exceed the original specifications, supporting industrial grade (0 ℃~70 ℃) working temperatures.

Chip Features

3.3V single power supply - no charge pump

Interoperable with +5V logic level

8ns Maximum delay

Pressure swing rate limit during error free data transmission

2nA Low current Off mode

-7V to+12V common mode input voltage range

Up to 32 transceivers allowed on the bus

Provide two communication methods: full duplex and half duplex

Driver overload protection - current limiting and thermal shutdown

Application Domain

低功耗RS-485/RS-422收发器

电信

⽤于EMI敏感应⽤的收发器

⼯业控制局域⽹

Framework Picture
CLM3490.png
Doc Download
CLM3490_DS_V1.0_EN.pdf

2024-09-23
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Complete and detailed applications can be approved faster; we will reply within 2 working days; the samples sent out are self-paid.