ST485E datasheet(2/13 Pages) STMICROELECTRONICS | Â±5KV ESD PROTECTED, LOW POWER RS-485/RS-422 TRANSCEIVER

Part No.	ST485E

Description	Â±5KV ESD PROTECTED, LOW POWER RS-485/RS-422 TRANSCEIVER

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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2 / 13 page

ST485E

2/13

PIN CONFIGURATION

PIN DESCRIPTION

TRUTH TABLE (DRIVER)

X= Don’t Care; Z=High Impedance

TRUTH TABLE (RECEIVER)

X= Don’t Care; Z=High Impedance

ABSOLUTE MAXIMUM RATINGS

Absolute Maximum Ratings are those values beyond which damage to the device may occur. Functional operation under these condition is

not implied.

PlN N°

SYMBOL

NAME AND FUNCTION

Receiver Output

2RE

Receiver Output Enable

Driver Output Enable

Driver Input

GND

Ground

Non-inverting Receiver Input and Non-inverting Driver Output

Inverting Receiver Input and Inverting Driver Output

VCC

Supply Voltage

INPUTS

OUTPUTS

XLX

INPUTS

OUTPUT

A-B

≥ +0.2V

≤ -0.2V

INPUTS OPEN

Symbol

Parameter

Value

Unit

VCC

Supply Voltage

Control Input Voltage (RE, DE)

-0.5 to (VCC + 0.5)

VDI

Driver Input Voltage (DI)

-0.5 to (VCC + 0.5)

VDO

Driver Output Voltage (A, B)

± 14

VRI

Receiver Input Voltage (A, B)

± 14

VRO

Receiver Output Voltage (RO)

-0.5 to (VCC + 0.5)

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