MAX3243CDWRG4 参数 Datasheet PDF下载

MAX3243

3 V TO 5.5 V MULTICHANNEL RS 232 LINE DRIVER/RECEIVER

WITH

±15

kV ESD (HBM) PROTECTION

SLLS350L − APRIL 1999 − REVISED MARCH 2004

EACH RECEIVER

INPUTS

RIN2

L

H

L

L

H

H

Open

RIN1,

RIN3−RIN5

X

X

L

H

L

H

Open

FORCEOFF

L

L

H

H

H

H

H

VALID RIN

RS-232 LEVEL

X

X

Yes

Yes

Yes

Yes

No

OUTPUTS

ROUT2B

L

H

L

L

H

H

L

ROUT

Z

Z

H

L

H

L

H

Normal operation with

auto-powerdown

disabled/enabled

RECEIVER STATUS

Powered off while

ROUT2B is active

H = high level, L = low level, X = irrelevant, Z = high impedance (off), Open = input disconnected or connected

driver off

logic diagram (positive logic)

DIN1

14

9

DOUT1

DIN2

13

10

DOUT2

DIN3

12

11

DOUT3

FORCEOFF

FORCEON

22

23

Auto-powerdown

21

INVALID

ROUT1

ROUT2B

19

20

4

5 k

Ω

RIN1

ROUT2

18

5

5 k

Ω

RIN2

ROUT3

17

6

5 k

Ω

RIN3

ROUT4

16

7

RIN4

5 k

Ω

ROUT5

15

8

5 k

Ω

RIN5

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DALLAS, TEXAS 75265

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