MAX243C-D View Datasheet(PDF) - Maxim Integrated

Part Name

Description

Manufacturer

MAX243C-D

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

Maxim Integrated 

+5V-Powered, Multichannel RS-232

Drivers/Receivers

TOP VIEW

ENR 1

ENR 2

T1IN 3

T2IN 4

R1OUT 5

R2OUT 6

R3OUT 7

R3IN 8

R2IN 9

R1IN 10

T1OUT 11

T2OUT 12

GND 13

GND 14

MAX225

SO

28 VCC

27 VCC

26 ENT

25 T3IN

24 T4IN

23 T5IN

22 R4OUT

21 R5OUT

20 R5IN

19 R4IN

18 T3OUT

17 T4OUT

16 T5OUT

15 T5OUT

+5V

0.1

28 27

+5V

VCC VCC

400kΩ

3

T1IN

+5V

11

T1OUT

400kΩ

4

T2IN

+5V

400kΩ

25

T3IN

+5V

400kΩ

24

T4IN

+5V

12

T2OUT

18

T3OUT

17

T4OUT

400kΩ

23

T5IN

T5OUT

16

26

ENT

5

R1OUT

15

T5OUT

R1IN

10

5kΩ

6

R2OUT

R2IN

9

5kΩ

MAX225 FUNCTIONAL DESCRIPTION

5 RECEIVERS

5 TRANSMITTERS

2 CONTROL PINS

1 RECEIVER ENABLE (ENR)

1 TRANSMITTER ENABLE (ENT)

7

R3OUT

22

R4OUT

21

R5OUT

R3IN

8

5kΩ

R4IN

19

5kΩ

R5IN

20

5kΩ

PINS (ENR, GND, VCC, T5OUT) ARE INTERNALLY CONNECTED.

CONNECT EITHER OR BOTH EXTERNALLY. T5OUT IS A SINGLE DRIVER.

1 ENR

2 ENR

GND GND

13

14

Figure 7. MAX225 Pin Configuration and Typical Operating Circuit

18 ______________________________________________________________________________________

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