ST490AB 查看數據表（PDF） - STMicroelectronics

零件编号

产品描述 (功能)

生产厂家

ST490AB

Low power high speed RS-485/RS-422 transceiver

STMicroelectronics 

Truth tables

2

Truth tables

Table 3.

Truth table (driver)

Inputs

DI

L

H

Note:

X = Don’t care; Z = High impedance

Table 4.

Note:

Truth table (receiver)

Differential inputs

A-B

≥ -0.2V

between -0.2V to 0.2V

≤-0.2V

OPEN

X = Don’t care; Z = High impedance

ST490AB

Outputs

Y

Z

L

H

H

L

Outputs

RO

H

?

L

H

4/17

Share Link: