ST1480AB Просмотр технического описания (PDF) - STMicroelectronics

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производитель

ST1480AB

3.3 V powered, 15 kV ESD protected, up to 12 Mbps true RS-485/RS-422 transceiver

STMicroelectronics 

Truth tables

2

Truth tables

Table 2.

Truth table (driver)

Inputs

RE

DE

DI

X

H

H

X

H

L

L

L

X

H

L

X

Outputs

B

A

L

H

H

L

Z

Z

Z

Z

Note:

X= Don’t care; Z=High impedance

Table 3.

Truth table (receiver)

Inputs

RE

DE

L

L

L

L

L

L

L

L

H

L

A-B

≥ -0.015V

≤-0.2V

Inputs open

Inputs shorted

X

Note:

X= Don’t care; Z=High impedance

Output

RO

H

L

H

H

Z

ST1480AB - ST1480AC

Mode

Normal

Normal

Normal

Shutdown

Mode

Normal

Normal

Normal

Normal

Shutdown

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