MAX3237EEAI View Datasheet(PDF) - Maxim Integrated

Part Name

Description

View to exact match

MAX3237EEAI

3.0V to 5.5V, Low-Power, up to 1Mbps, True RS-232 Transceivers Using Four 0.1µF External Capacitors

Maxim Integrated 

MAX3222/MAX3232/MAX3237/MAX3241

3.0V to 5.5V, Low-Power, up to 1Mbps, True RS-232

Transceivers Using Four 0.1µF External Capacitors

______________________________________________________________Pin Description

MAX3222

DIP/SO SSOP

1

1

2

2

3

3

4

4

5

5

6

6

7

7

8, 15

8, 17

9, 14

10, 13

9, 16

10, 15

11, 12 12, 13

16

18

17

19

18

20

—

11, 14

—

—

—

—

PIN

MAX3232 MAX3237

—

13

1

28

2

27

3

25

4

1

5

6

7, 14

8, 13

9, 12

10, 11

15

16

—

—

—

3

4

5, 6, 7,

10, 12

8, 9, 11

18, 20, 21

17, 19, 22,

23, 24

2

26

14

—

15

—

16

NAME

MAX3241

FUNCTION

23

EN

Receiver Enable. Active low.

28

C1+

Positive Terminal of Voltage-Doubler Charge-Pump

Capacitor

27

V+

+5.5V Generated by the Charge Pump

24

C1-

Negative Terminal of Voltage-Doubler Charge-Pump

Capacitor

1

C2+

Positive Terminal of Inverting Charge-Pump

Capacitor

2

C2-

Negative Terminal of Inverting Charge-Pump

Capacitor

3

V-

-5.5V Generated by the Charge Pump

9, 10, 11 T_OUT RS-232 Transmitter Outputs

4–8

15–19

R_IN

R_OUT

RS-232 Receiver Inputs

TTL/CMOS Receiver Outputs

12, 13, 14 T_IN

TTL/CMOS Transmitter Inputs

25

26

22

—

—

20, 21

GND

VCC

SHDN

N.C.

MBAUD

R_OUTB

Ground

+3.0V to +5.5V Supply Voltage

Shutdown Control. Active low.

No Connection

MegaBaud Control Input. Connect to GND for normal

operation; connect to VCC for 1Mbps transmission rates.

Noninverting Complementary Receiver Outputs.

Always active.

6

Maxim Integrated

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