SP301CS データシートの表示（PDF） - Signal Processing Technologies

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SP301CS

RS-232/RS-422 Line Drivers/Receivers

Signal Processing Technologies 

FIGURE 3: SP301 CONTROL LOGIC CONFIGURATION

SELECTION

SELECT A:

SELECT B:

NON–

LOOPBACK

(LB = 1)

LOGIC VALUE

0

0

RIA1

ROA

LOGIC VALUE

0

1

RIA1

ROA

TOA1

TIA

TOA1

TIA

LOGIC VALUE

1

0

LOGIC VALUE

1

1

RIA2

RIA1

TOA1

TOA2

ROA

RIA2

RIA1

TIA

TOA1

TOA2

ROA

TIA

RIB1

TOB1

ROB

TIB

RIB2

RIB1

TOB1

TOB2

ROB

TIB

RIB1

TOB1

ROB

TIB

RIB2

RIB1

TOB1

TOB2

ROB

TIB

LOOPBACK

(LB=0)

RIA1

TOA*1

RIB1

TOB*1

ROA

RIA1

TIA TOA*1

RIB2

ROB RIB1

TOB*1

TIB TOB*2

ROA

RIA2

RIA1

TOA*1

TIA TOA*2

ROB RIB1

TIB

TOB*1

ROA

RIA2

RIA1

TIA

TOA*1

TOA*2

RIB2

ROB RIB1

TOB*1

TIB TOB*2

ROA

TIA

ROB

TIB

RS-232 DRIVER

* Tri–state Output

RS-232 RECEIVER RS-422 RECEIVER RS-422 DRIVER

Corporation

SIGNAL PROCESSING EXCELLENCE

57

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