MAX202ECSE+T

Maxim Integrated  |  8

www.maximintegrated.com

MAX202E–MAX213E,
MAX232E/MAX241E

±15kV ESD-Protected, 

5V RS-232 Transceivers 

 V+

GND

MAX206E
MAX211E
MAX213E
MAX241E

0.1

μF

*

 V

CC

0.1

μF

*

 R1 TO R5

T1 TO T5

0.1

μF

*

C1+

C1-

C2+

C2-

 V

CC

 +5.5V

T_OUT

R_OUT

400k

Ω

5k

Ω

 I

SHDN

0V OR +5.5V

DRIVE

0.1

μF

*

0.1

μF

*

3k

Ω

 +5.5V

R_IN

T_IN

CAPACITORS MAY BE 

POLARIZED OR UNPOLARIZED

(  ) ARE FOR MAX213E

*

 1

μF FOR MAX241E

EN (EN)

SHDN (SHDN)

+5.5V (0V)

 V-

 +5.5V

Figure 1.  Shutdown-Current Test Circuit (MAX206E,
MAX211E/MAX213E/MAX241E)

+3.5V

EN

INPUT

OUTPUT ENABLE TIME

+2.5V

RECEIVER

OUTPUT

C

L

  = 150pF

RECEIVER
OUTPUTS

OUTPUT DISABLE TIME

V

OH

 - 0.1V

V

OH

V

OL

V

OL

 + 0.1V

R

L

 = 1kΩ

NOTE:
POLARITY OF EN
IS REVERSED
FOR THE
MAX213E

+0.8V

0V

+3V

+3V

EN

INPUT

0V

Figure 2.  Receiver Output Enable and Disable Timing
(MAX205E/MAX206E/MAX211E/MAX213E/MAX241E)

17

NAME

FUNCTION

V-

T_OUT

RS-232 Driver Outputs

-2V

CC

Voltage Generated by the Charge Pump

R_IN

RS-232 Receiver Inputs

24

R_OUT

TTL/CMOS Receiver Outputs. For the MAX213E, receivers R4 and R5 are active in shutdown
mode when EN = 1. For the MAX211E and MAX241E, all receivers are inactive in shutdown.

PIN

1, 2, 3, 28

4, 9, 18, 23, 27

EN

T_IN

TTL/CMOS Driver Inputs. Only the MAX211E, MAX213E, and MAX241E have internal pullups to V

CC.

Receiver Enable—Active High (MAX213E)

GND

Ground

25

V

CC

+4.5V to +5.5V Supply Voltage

SHDN

C1+, C1-

Terminals for Positive Charge-Pump Capacitor

5, 8, 19, 22, 26

6, 7, 20, 21

10

Shutdown Control—Active Low (MAX213E)

V+

+2V

CC

Voltage Generated by the Charge Pump

C2+, C2-

Terminals for Negative Charge-Pump Capacitor

11

12, 14

13

15, 16

EN

Receiver Enable—Active Low (MAX211E, MAX241E)

SHDN

Shutdown Control—Active High (MAX211E, MAX241E)

Pin Descriptions (continued)

MAX211E/MAX213E/MAX241E

MAX202ECSE+T Information:
Part No.
MAX202ECSE+T

RFQ

Description
IC TXRX RS-232 W/CAP 16-SOIC
File Size
399670 bytes
Page Size
612 x 792 pts (letter)
All Pages
25
Manufacturer
Maxim Integrated
Homepage
http://www.maximintegrated.com/en.html
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