MAX232MJE

P1-P3 P4-P6 P7-P9 P10-P12 P13-P15 P16-P18 P19-P21 P22-P24 P25-P27 P28-P30 P31-P33 P34-P36 P37-P39

MAX220–MAX249

+5V-Powered, Multichannel

RS-232 Drivers/Receivers

Maxim Integrated | 31www.maximintegrated.com

400kΩ

V

CC

400kΩ

GND

+5V

+5V

+5V

+5V

+5V

40

16

1μF

2

18

4

TA1OUT

TA1IN

TA3OUT

TA3IN

20

24

38

22

36

1

39

TB1OUT

TB1IN

TB3OUT

TB3IN

400kΩ

+5V

17

3

TA2OUT

TA2IN

+5V

23

37

TB2OUT

TB2IN

400kΩ

+5V

19

5

TA4OUT

TA4IN

+5V

21

35

TB4OUT

TB4IN

5kΩ

5kΩ

5kΩ

5kΩ

5kΩ

5kΩ

5kΩ

5kΩ

5kΩ

5kΩ

11 RA1IN

10 RA1OUT

12 RA2IN

9 RA2OUT

13 RA3IN

8 RA3OUT

14 RA4IN

7 RA4OUT

15 RA5IN

6 RA5OUT

29

30

28

31

27

32

26

33

25

34

RB1IN

RB1OUT

RB2IN

RB2OUT

RB3IN

RB3OUT

RB4IN

RB4OUT

RB5IN

RB5OUT

40 V

CC

ENB

TB1IN

TB2IN

TB3IN

TB4IN

RB5OUT

RB4OUT

RB3OUT

RB2OUT

RB1OUT

RB1IN

RB2IN

RB3IN

RB4IN

RB5IN

TB1OUT

TB2OUT

TB3OUT

TB4OUT

39

38

37

36

35

34

33

32

31

1

2

3

4

5

6

7

8

9

10

ENA

TA1IN

TA2IN

TA3IN

TA4IN

RA5OUT

RA4OUT

RA3OUT

RA2OUT

RA1OUT

RA1IN

RA2IN

RA3IN

RA4IN

RA5IN

TA1OUT

TA2OUT

TA3OUT

TA4OUT

GND

TOP VIEW

MAX246

30

29

28

27

26

25

24

23

22

21

11

12

13

14

15

16

17

18

19

DIP

20

MAX246 FUNCTIONAL DESCRIPTION

10 RECEIVERS

5 A-SIDE RECEIVERS (R

A5

ALWAYS ACTIVE)

5 B-SIDE RECEIVERS (R

B5

ALWAYS ACTIVE)

8 TRANSMITTERS

4 A-SIDE TRANSMITTERS

4 B-SIDE TRANSMITTERS

2 CONTROL PINS

ENABLE A-SIDE (ENA)

ENABLE B-SIDE (ENB)

ENA

ENB

+

Figure 22. MAX246 Pin Configuration and Typical Operating Circuit

Maxim Integrated | 32www.maximintegrated.com

MAX220–MAX249

+5V-Powered, Multichannel

RS-232 Drivers/Receivers

400kΩ

V

CC

400kΩ

GND

+5V

+5V

+5V

+5V

+5V

1

40

16

1μF

2

18

4

5kΩ

5kΩ

5kΩ

5kΩ

5kΩ

5kΩ

5kΩ

5kΩ

ENTA

TA1OUT

TA1IN

TA3OUT

TA3IN

6 RB5OUT

12 RA1IN

10 RA1OUT

13 RA2IN

9 RA2OUT

14 RA3IN

8 RA3OUT

15 RA4IN

7

20

RA4OUT

11

39

24

38

22

36

29

31

28

32

27

33

26

34

30ENRA

ENTB

TB1OUT

TB1IN

TB3OUT

TB3IN

RB1IN

5kΩ

25

RB5IN

RB1OUT

RB2IN

RB2OUT

RB3IN

RB3OUT

RB4IN

RB4OUT

ENRB

400kΩ

+5V

17

3

TA2OUT

TA2IN

+5V

23

37

TB2OUT

TB2IN

400kΩ

+5V

19

5

TA4OUT

TA4IN

+5V

21

35

TB4OUT

TB4IN

40

V

CC

ENTB

TB1IN

TB2IN

TB3IN

TB4IN

RB4OUT

RB3OUT

RB2OUT

RB1OUT

RB1IN

RB2IN

RB3IN

RB4IN

RB5IN

TB1OUT

TB2OUT

TB3OUT

TB4OUT

39

38

37

36

35

34

33

32

31

1

2

3

4

5

6

7

8

9

10

ENTA

TA1IN

TA2IN

TA3IN

TA4IN

RB5OUT

RA4OUT

RA3OUT

RA2OUT

RA1OUT

RA1IN

RA2IN

RA3IN

RA4IN

TA1OUT

TA2OUT

TA3OUT

TA4OUT

GND

TOP VIEW

MAX247

30

29

28

27

26

25

24

23

22

21

11

12

13

14

15

16

17

18

19

DIP

20

ENRA ENRB

MAX247 FUNCTIONAL DESCRIPTION

9 RECEIVERS

4 A-SIDE RECEIVERS

5 B-SIDE RECEIVERS (R

B5

ALWAYS ACTIVE)

8 TRANSMITTERS

4 A-SIDE TRANSMITTERS

4 B-SIDE TRANSMITTERS

4 CONTROL PINS

ENABLE RECEIVER A-SIDE (ENRA)

ENABLE RECEIVER B-SIDE (ENRB)

ENABLE RECEIVER A-SIDE (ENTA)

ENABLE RECEIVER B-SIDE (ENTB)

+

Figure 23. MAX247 Pin Configuration and Typical Operating Circuit

MAX220–MAX249

+5V-Powered, Multichannel

RS-232 Drivers/Receivers

Maxim Integrated | 33www.maximintegrated.com

400kΩ

+10V TO -10V VOLTAGE INVERTER

+5V TO +10V VOLTAGE DOUBLER

V

CC

400kΩ

GND

+5V

+5V

+5V

+5V

+5V

18

25

24

23

21

20

1

1μF

1μF

1μF

1μF

1μF

14

3

16

5kΩ

5kΩ

5kΩ

5kΩ

5kΩ

5kΩ

5kΩ

5kΩ

ENTA

C2-

C2+

C1-

C1+

TA1OUT

TA1IN

TA3OUT

TA3IN

8 RA1IN

10 RA1OUT

7 RA2IN

11 RA2OUT

6 RA3IN

12 RA3OUT

5 RA4IN

13

19

RA4OUT

9

27

26

22

44

31

42

29

37

35

38

34

39

33

40

32

36ENRA

ENTB

V-

V+

TB1OUT

TB1IN

TB3OUT

TB3IN

RB1IN

RB1OUT

RB2IN

RB2OUT

RB3IN

RB3OUT

RB4IN

RB4OUT

ENRB

400kΩ

+5V

2

15

TA2OUT

TA2IN

+5V

43

30

TB2OUT

TB2IN

400kΩ

+5V

4

17

TA4OUT

TA4IN

+5V

41

28

TB4OUT

TB4IN

441234404142

43

5

21

24

26

25

27

28

22 2319

20

8

9

10

11

12

13

14

15

16

17

29

30

31

32

33

34

35

36

37

38

TA4IN

V

CC

RA4IN

MAX248

PLCC

TOP VIEW

TA4OUT

TA3OUT

TA2OUT

TA1OUT

TB1OUT

TB2OUT

TB3OUT

TA4OUT

RB4IN

GND

V+

C1+

C2+

C1-

V-

C2-

TB4IN

ENTB

RB2IN

RB1IN

RB1OUT

RB2OUT

RB3OUT

RB4OUT

TB1IN

TB2IN

TB3IN

TA3IN

TA2IN

TA1IN

RA4OUT

RA3OUT

RA2OUT

RA1OUT

ENRA

RA1IN

7

39

RB3IN

RA2IN

6

18

RA3IN

ENRB

ENTA

MAX248 FUNCTIONAL DESCRIPTION

8 RECEIVERS

4 A-SIDE RECEIVERS

4 B-SIDE RECEIVERS

8 TRANSMITTERS

4 A-SIDE TRANSMITTERS

4 B-SIDE TRANSMITTERS

4 CONTROL PINS

ENABLE RECEIVER A-SIDE (ENRA)

ENABLE RECEIVER B-SIDE (ENRB)

ENABLE RECEIVER A-SIDE (ENTA)

ENABLE RECEIVER B-SIDE (ENTB

)

+

Figure 24. MAX248 Pin Configuration and Typical Operating Circuit

P1-P3 P4-P6 P7-P9 P10-P12 P13-P15 P16-P18 P19-P21 P22-P24 P25-P27 P28-P30 P31-P33 P34-P36 P37-P39

MAX232MJE

Mfr. #:

Manufacturer:

Maxim Integrated

Description:

MULTICHANNEL RS-232 DRIVERS/RECE

Lifecycle:

New from this manufacturer.

Delivery:

DHL FedEx Ups TNT EMS

Payment:

T/T Paypal Visa MoneyGram Western Union

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