MAX232-ACWE datasheet(33/38 Pages) MAXIM

Part #	MAX232-ACWE

Description	5V-Powered, Multichannel RS-232 Drivers/Receivers

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Manufacturer	MAXIM [Maxim Integrated Products]

Direct Link	https://www.maximintegrated.com/en.html

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33 / 38 page

+5V-Powered, Multichannel RS-232

Drivers/Receivers

400k

Ω

+10V TO -10V VOLTAGE INVERTER

+5V TO +10V VOLTAGE DOUBLER

VCC

400k

Ω

GND

+5V

18

25

24

23

21

20

1

μF

1

μF

1

μF

1

μF

1

μF

14

3

16

5k

Ω

5k

Ω

5k

Ω

5k

Ω

5k

Ω

5k

Ω

5k

Ω

5k

Ω

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

36

ENRA

ENTB

V-

V+

TB1OUT

TB1IN

TB3OUT

TB3IN

RB1IN

RB1OUT

RB2IN

RB2OUT

RB3IN

RB3OUT

RB4IN

RB4OUT

ENRB

400k

Ω

+5V

2

15

TA2OUT

TA2IN

+5V

43

30

TB2OUT

TB2IN

400k

Ω

+5V

4

17

TA4OUT

TA4IN

+5V

41

28

TB4OUT

TB4IN

44

1

2

3

440

41

42

43

5

21

24

26

25

27 28

22 23

19 20

8

9

10

11

12

13

14

15

16

17

29

30

31

32

33

34

35

36

37

38

TA4IN

MAX248

PLCC

TOP VIEW

RB2IN

RB1IN

RB1OUT

RB2OUT

RB3OUT

RB4OUT

TB1IN

TB2IN

TB3IN

TA3IN

TA2IN

TA1IN

RA4OUT

RA3OUT

RA2OUT

RA1OUT

ENRA

RA1IN

7

39

RB3IN

RA2IN

6

18

ENRB

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

Maxim Integrated

33

MAX220–MAX249

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MAX232-ACWE Datasheet(PDF) 33 Page - Maxim Integrated Products

MAX232-ACWE Datasheet(HTML) 33 Page - Maxim Integrated Products

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