Datasheet > ST4485EB

ST4485EB

更新时间： 2024-02-25 11:43:30

品牌	Logo	应用领域
意法半导体 - STMICROELECTRONICS		/
页数	文件大小	规格书
18页	392K
描述
Guaranteed 20 Mbps data rate

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ST4485EB 数据手册

ST4485EB

3.3 V powered, 15 kV ESD protected, up to 20 Mbps RS-485/

RS-422 transceiver

Datasheet - production data

 Guaranteed high receiver output state for

floating inputs with no signal present

 Allow up to 64 transceivers on the bus

 Wide operating temperature range:

-40 to +105 °C

Applications

SO-8

 Industrial systems control

 Telecommunications

Description

Features

The ST4485EB device is a ± 15 kV ESD

protected, 3.3 V low power transceiver for RS-485

and RS-422 communications. The device

contains one driver and one receiver in half

duplex configuration.

 ESD protection

– ± 15 kV human body model

– ± 8 kV IEC 1000-4-2 contact discharge

 Operate from a single 3.3 V supply - no charge

pump required

The ST4485EB transmits and receives at

a guaranteed data rate of at least 20 Mbps.

 Interoperable with 5 V logic

 1 µA low current shutdown mode max.

 Guaranteed 20 Mbps data rate

 -7 to 12 V common mode input voltage range

 Half duplex versions available

All transmitter outputs and receiver inputs are

protected to ± 15 kV using “Human Body Model”.

The driver is short-circuit current limited and is

protected against excessive power dissipation by

thermal shutdown circuitry that places the driver

outputs into a high-impedance state.

 Industry standard 75176 pinout

 Current limiting and thermal shutdown for

driver overload protection

Table 1. Device summary

Order code

Temperature range

Package

Packaging

ST4485EBDR

-40 to 105 °C

SO-8 (tape and reel)

2500 parts per reel

September 2013

DocID025158 Rev 2

1/18

This is information on a product in full production.

www.st.com

12 3 4 5 6 7...18

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