SP336E

15

REV. 1.0.0

3.3V - 5V PROGRAMMABLE RS-232/RS-485/RS-422 SERIAL TRANSCEIVER

1.0 FUNCTION TABLES

The SP336E drivers and receivers may be configured to operate as either standard RS-485/RS-422 or RS-232

devices. RS-485/RS422 drivers have differential outputs and receivers have differential inputs. RS-232 drivers

and receivers are single-ended with inverting outputs.

Inputs

Outputs

Inputs

Output

Tx_EN

Tx_In

Tx(A)

Tx(B)

Rx(A) - Rx(B)

RxOut

1

1

0

1

> -50mV

1

1

0

1

0

≤ -200mV

0

0

x

High-Z

Open / Shorted

1

Inputs

Outputs

Inputs

Outputs

DE/RE

TxIn

Tx(A)

Tx(B)

DE/RE

Rx(A) - Rx(B)

RxOut

1

1

0

1

1

x

High-Z

1

0

1

0

1

x

High-Z

0

x

High-Z

High-Z

0

> -50mV

1

0

≤ -200mV

0

0

Open / Shorted

1

Input

Output

Input

Output

0

≥ 5V

≥ 3V

0

1

≤ -5V

≤ -3V

1

Open

≤ -5V

Open

1