MAX220C View Datasheet(PDF) - Maxim Integrated

Part Name

Description

View to exact match

MAX220C

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

Maxim Integrated 

+5V-Powered, Multichannel RS-232

Drivers/Receivers

TOP VIEW

1µF

6 5 4 3 2 1 44 43 42 41 40

1µF

RA2IN 7

RA1IN 8

ENRA 9

RA1OUT 10

RA2OUT 11

RA3OUT 12

RA4OUT 13

RA5OUT 14

TA1IN 15

TA2IN 16

TA3IN 17

MAX249

39 RB3IN

38 RB2IN

37 RB1IN

36 ENRB

35 RB1OUT

34 RB2OUT

33 RB3OUT

32 RB4OUT

31 RB5OUT

30 TB1IN

29 TB2IN

18 19 20 21 22 23 24 25 26 27 28

PLCC

MAX249 FUNCTIONAL DESCRIPTION

10 RECEIVERS

5 A-SIDE RECEIVERS

5 B-SIDE RECEIVERS

6 TRANSMITTERS

3 A-SIDE TRANSMITTERS

3 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)

21

C1+

23 C1-

24 C2+

25 C2-

18 ENTA

1 TA1OUT

15 TA1IN

2 TA2OUT

16 TA2IN

3 TA3OUT

17 TA3IN

8 RA1IN

+5V

1µF

1µF

20

VCC

+5V TO +10V VOLTAGE DOUBLER

+10V TO -10V VOLTAGE INVERTER

V+ 22

26

V-

1µF

+5V +5V

ENTB 27

TB1OUT 44

400kΩ

TB1IN 30

+5V +5V

TB2OUT 43

400kΩ

TB2IN 29

+5V +5V

TB3OUT 42

400kΩ

TB3IN 28

RB1IN 37

5kΩ

10 RA1OUT

7 RA2IN

5kΩ

RB1OUT 35

RB2IN 38

5kΩ

11 RA2OUT

6 RA3IN

5kΩ

RB2OUT 34

RB3IN 39

5kΩ

12 RA3OUT

5 RA4IN

5kΩ

RB3OUT 33

RB4IN 40

5kΩ

13 RA4OUT

4 RA5IN

5kΩ

RB4OUT 32

RB5IN 41

5kΩ

14 RA5OUT

9 ENRA

GND

19

5kΩ

RB5OUT 31

ENRB 36

Figure 25. MAX249 Pin Configuration and Typical Operating Circuit

34 ______________________________________________________________________________________

Share Link: