UTRS458

CMOS IC

UNISONICTECHNOLOGIESCO.,LTD

2 of 8

www.unisonic.com.tw

QW-R113-016.E

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MARKING

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PIN CONFIGURATION

1

2

3

4

8

7

6

5

RO

REB

DE

DI

B

A

GND

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PIN DESCRIPTION

PIN NO.

PIN NAME

DESCRIPTION

1

RO

Receiver output.

2

REB

Receiver output enable: REB is low to enable the Receiver; REB is high to disable the

Receiver.

3

DE

Transmitter output enable: DE is high to enable the transmitter; DE is low to disable the

transmitter.

4

DI

Transmitter input: When DE is high, a low on DI forces An output low and B output high.

Similarly, a high on DI forces An output high and B output low.

5

GND

Ground pin. Must be connected to 0V.

6

A

Non-inverting receiver input and non-inverting transmitter output

7

B

Inverting receiver input and inverting transmitter output

8

Power supply Input 5.0V.