±15kV ESD-Protected, Down to 10nA, 3.0V to 5.5V,

Up to 1Mbps, True RS-232 Transceivers

8

_______________________________________________________________________________________

Pin Description (continued)

PIN

MAX3222E

MAX3232E

MAX3241E

TQFN

SO/

DIP

TSSOP/

SSOP

TQFN

SO/DIP/

SSOP/

16-PIN

TSSOP

20-PIN

TSSOP

MAX3237E SSOP/

SO/

TSSOP

QFN

MAX3246E

NAME

FUNCTION

16

16

18

13

15

18

2

25

24

F5

GND

Ground

17

17

19

14

16

19

26

26

26

F2

+3.0V to +5.5V Supply

Voltage

18

18

20

—

—

—

14*

22

21

B2

SHDN

Shutdown Control. Active

low.

9, 12

—

11, 14

——

1, 10,

11, 20

——

9, 16,

25,

32

C3, D3, B4,

C4, D4, E4,

B5, C5, D5,

E5

N.C.

No Connection. For

MAX3246E, these

locations are not

populated with solder

bumps.

—

—

——

—

—

15*

—

—

—

MBAUD

MegaBaud Control Input.

Connect to GND for

normal operation; connect

to VCC for 1Mbps

transmission rates.

—

—

——

—

—

16

20,

21

19, 20

—

R_OUTB

Noninverting

Complementary Receiver

Outputs. Always active.

EP

—

—

EP

——

—

—

EP

—

GND

Exposed Paddle. Solder

the exposed paddle to

the ground alone or leave

unconnected.