UPD4726GS-BAF 查看數據表（PDF） - NEC => Renesas Technology

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UPD4726GS-BAF

RS-232 LINE DRIVER/RECEIVER

NEC => Renesas Technology 

TRUTH TABLE

Drivers

STBY DIN

L

×

H

L

H

H

DOUT

Z

H

L

Remarks

Standby mode (DC/DC converter stops.)

Space level output

Mark level output

µPD4726

Receivers

STBY

L

L

L

H

H

RIN

ROUT

EN

R6 - R7 R1 - R5 R6 - R7 R1 - R5

Remarks

L

×

×

H

H Standby mode 1 (DC/DC converter stops.)

H

L

×

H

H Standby mode 2 (DC/DC converter stops. R6 and R7 operate.)

H

H

×

L

H

×

L

H

Mark level input

×

H

L

Space level input

H : high level

L : low level

Z : high impedance

× : H or L

3

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