MAXIM MAX202E, MAX213E, MAX232E, MAX241E User Manual

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________________________________________________________________ Maxim Integrated Products 1

General Description

The MAX202E–MAX213E, MAX232E/MAX241E line
drivers/receivers are designed for RS-232 and V.28
communications in harsh environments. Each transmitter
output and receiver input is protected against ±15kV
electrostatic discharge (ESD) shocks, without latchup.
The various combinations of features are outlined in the
Selector Guide. The drivers and receivers for all ten
devices meet all EIA/TIA-232E and CCITT V.28
specifications at data rates up to 120kbps, when loaded
in accordance with the EIA/TIA-232E specification.

The MAX211E/MAX213E/MAX241E are available in 28­pin SO packages, as well as a 28-pin SSOP that uses
60% less board space. The MAX202E/MAX232E come
in 16-pin TSSOP, narrow SO, wide SO, and DIP
packages. The MAX203E comes in a 20-pin DIP/SO
package, and needs no external charge-pump
capacitors. The MAX205E comes in a 24-pin wide DIP
package, and also eliminates external charge-pump
capacitors. The MAX206E/MAX207E/MAX208E come in
24-pin SO, SSOP, and narrow DIP packages. The
MAX232E/MAX241E operate with four 1µF capacitors,
while the MAX202E/MAX206E/MAX207E/MAX208E/
MAX211E/MAX213E operate with four 0.1µF capacitors,
further reducing cost and board space.

________________________Applications

Notebook, Subnotebook, and Palmtop Computers
Battery-Powered Equipment
Hand-Held Equipment

Next-Generation Device Features

♦ For Low-Voltage Applications

MAX3222E/MAX3232E/MAX3237E/MAX3241E/
MAX3246E: ±15kV ESD-Protected Down to
10nA, +3.0V to +5.5V, Up to 1Mbps, True RS-232
Transceivers (MAX3246E Available in a UCSP™
Package)

♦ For Low-Power Applications

MAX3221/MAX3223/MAX3243: 1µA Supply
Current, True +3V to +5.5V RS-232 Transceivers
with Auto-Shutdown™

♦ For Space-Constrained Applications

MAX3233E/MAX3235E: ±15kV ESD-Protected,
1µA, 250kbps, +3.0V/+5.5V, Dual RS-232
Transceivers with Internal Capacitors

♦ For Low-Voltage or Data Cable Applications

MAX3380E/MAX3381E: +2.35V to +5.5V, 1µA,
2Tx/2Rx RS-232 Transceivers with ±15kV ESD­Protected I/O and Logic Pins

MAX202E–MAX213E, MAX232E/MAX241E

±15kV ESD-Protected, +5V RS-232 Transceivers

Selector Guide

19-0175; Rev 5; 10/03

Ordering Information, Pin Configurations, and Typical
Operating Circuits appear at end of data sheet.

Yes

PART

NO. OF RS-232

DRIVERS

NO. OF RS-232

RECEIVERS

RECEIVERS

ACTIVE IN

SHUTDOWN

NO. OF

EXTERNAL

CAPACITORS

(µF)

LOW-POWER

SHUTDOWN

TTL TRI-

STATE

MAX202E

2 2 0 4 (0.1) No No

MAX203E

2 2 0 None No No

MAX205E

5 5 0 None Yes Yes

MAX206E

4 3 0 4 (0.1) Yes Yes

MAX207E

5 3 0 4 (0.1) No No

MAX208E

4 4 0 4 (0.1) No No

MAX211E

4 5 0 4 (0.1) Yes Yes

MAX213E

4 5 2 4 (0.1) Yes Yes

MAX232E

2 2 0 4 (1) No No

MAX241E

4 5 0 4 (1) Yes

For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at
1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com.

AutoShutdown and UCSP are trademarks of Maxim Integrated
Products, Inc.

2 _______________________________________________________________________________________

MAX202E–MAX213E, MAX232E/MAX241E

±15kV ESD-Protected, +5V RS-232 Transceivers

ABSOLUTE MAXIMUM RATINGS

VCC..........................................................................-0.3V to +6V

V+................................................................(V

CC

- 0.3V) to +14V

V- ............................................................................-14V to +0.3V

Input Voltages

T_IN ............................................................-0.3V to (V+ + 0.3V)

R_IN ...................................................................................±30V

Output Voltages

T_OUT.................................................(V- - 0.3V) to (V+ + 0.3V)

R_OUT......................................................-0.3V to (V

CC

+ 0.3V)

Short-Circuit Duration, T_OUT....................................Continuous

Continuous Power Dissipation (T

A

= +70°C)

16-Pin Plastic DIP (derate 10.53mW/°C above +70°C)....842mW

16-Pin Narrow SO (derate 8.70mW/°C above +70°C) .....696mW

16-Pin Wide SO (derate 9.52mW/°C above +70°C) ......762mW

16-Pin TSSOP (derate 9.4mW/°C above +70°C) ...........755mW

20-Pin Plastic DIP (derate 11.11mW/°C above +70°C)...889mW

20-Pin SO (derate 10.00mW/°C above +70°C).............800mW

24-Pin Narrow Plastic DIP

(derate 13.33mW/°C above +70°C) ...............................1.07W

24-Pin Wide Plastic DIP

(derate 14.29mW/°C above +70°C)................................1.14W

24-Pin SO (derate 11.76mW/°C above +70°C).............941mW

24-Pin SSOP (derate 8.00mW/°C above +70°C) ..........640mW

28-Pin SO (derate 12.50mW/°C above +70°C)....................1W

28-Pin SSOP (derate 9.52mW/°C above +70°C) ..........762mW

Operating Temperature Ranges

MAX2_ _EC_ _ .....................................................0°C to +70°C

MAX2_ _EE_ _...................................................-40°C to +85°C

Storage Temperature Range .............................-65°C to +165°C

Lead Temperature (soldering, 10sec) .............................+300°C

ELECTRICAL CHARACTERISTICS

(VCC= +5V ±10% for MAX202E/206E/208E/211E/213E/232E/241E; VCC= +5V ±5% for MAX203E/205E/207E; C1–C4 = 0.1µF for
MAX202E/206E/207E/208E/211E/213E; C1–C4 = 1µF for MAX232E/241E; T

A

= T

MIN

to T

MAX

; unless otherwise noted. Typical values

are at T

A

= +25°C.)

Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.

R_OUT; I

OUT

= -1.0mA V3.5 V

CC

- 0.4Output Voltage High V

OH

EN = VCC, EN = 0V, 0V ≤ R

OUT

≤ VCC,

MAX205E–208E/211E/213E/241E outputs disabled

µA±0.05 ±10Output Leakage Current

R_OUT; I

OUT

= 3.2mA (MAX202E/203E/232E) or

I

OUT

= 1.6mA (MAX205E/208E/211E/213E/241E)

V0.4Output Voltage Low V

OL

T_IN; EN, SHDN (MAX213E) or
EN, SHDN (MAX205E–208E/211E/241E)

V0.8Input Threshold Low V

IL

815

T_IN = 0V (MAX205E–208E/211E/213E/241E) µA15 200Input Pull-Up Current

PARAMETER CONDITIONSSYMBOL UNITSMIN TYP MAX

VCCSupply Current I

CC

mA

11 20

No load, TA= +25°C 14 20

510

MAX211E/213E
MAX232E

715MAX241E

MAX205E–208E

EN, SHDN (MAX213E) or EN, SHDN
(MAX205E–208E/211E/241E)

2.4

T_IN

V

2.0

Input Threshold High V

IH

MAX205E/206E 110

110MAX211E/241E

T_IN = 0V to VCC(MAX202E/203E/232E) µA±10Input Leakage Current

MAX202E/203E

15 50MAX213E

DC CHARACTERISTICS

LOGIC

Shutdown Supply Current TA= +25°C, Figure 1 µA

_______________________________________________________________________________________ 3

MAX202E–MAX213E, MAX232E/MAX241E

±15kV ESD-Protected, +5V RS-232 Transceivers

ELECTRICAL CHARACTERISTICS (continued)

(VCC= +5V ±10% for MAX202E/206E/208E/211E/213E/232E/241E; VCC= +5V ±5% for MAX203E/205E/207E; C1–C4 = 0.1µF for
MAX202E/206E/207E/208E/211E/213E; C1–C4 = 1µF for MAX232E/241E; T

A

= T

MIN

to T

MAX

; unless otherwise noted. Typical values

are at T

A

= +25°C.)

Note 1: MAX211EE_ _ and MAX213EE_ _ tested with V

CC

= +5V ±5%.

MAX205E/206E/211E/213E/241E normal
operation, Figure 2

MAX205E/206E/211E/213E/241E normal
operation, Figure 2

CL= 150pF

RL= 3kΩ to 7kΩ, CL= 50pF to 1000pF,
one transmitter switching

All drivers loaded with 3kΩ to ground (Note 1)

TA= +25°C, VCC= 5V

VCC= 5V, no hysteresis in shutdown

TA= +25°C,
VCC= 5V

TA= +25°C,
VCC= 5V

VCC= V+ = V- = 0V, V

OUT

= ±2V

CONDITIONS

ns200Receiver Output Disable Time

ns600Receiver Output Enable Time

µs

440

t

PLHR

,

t

PHLR

Receiver Propagation Delay

0.5 10

kbps120Maximum Data Rate

mA±10 ±60Output Short-Circuit Current

Ω300Output Resistance

V-30 30Input Voltage Range

V±5 ±9Output Voltage Swing

kΩ357Input Resistance

V0.2 0.5 1.0Input Hysteresis

VInput Threshold Low

1.7 2.4
V

1.5 2.4

Input Threshold High

UNITSMIN TYP MAXSYMBOLPARAMETER

All parts, normal operation

All parts, normal operation
MAX213E (R4, R5),

SHDN = 0V, EN = V

CC

RL= 3kΩ, CL= 2500pF, all transmitters loaded µs2

t

PLHT

,

t

PHLT

Transmitter Propagation Delay

TA= +25°C, VCC= 5V, RL= 3kΩ to 7kΩ,
C

L

= 50pF to 1000pF, measured from -3V to

+3V or +3V to -3V, Figure 3

V/µs3630Transition-Region Slew Rate

Human Body Model ±15

IEC1000-4-2, Air-Gap Discharge

kV

±15

ESD-Protection Voltage

IEC1000-4-2, Contact Discharge ±8

All parts, normal operation
MAX213E (R4, R5),

SHDN = 0V, EN = V

CC

0.8 1.2

ESD PERFORMANCE: TRANSMITTER OUTPUTS, RECEIVER INPUTS

TIMING CHARACTERISTICS

EIA/TIA-232E TRANSMITTER OUTPUTS

EIA/TIA-232E RECEIVER INPUTS

MAX213E, SHDN = 0V,
EN = V

CC

0.6 1.5

Note 1: MAX211EE_ _ tested with VCC= +5V ±5%.

4 ______________________________________________________________________________________

MAX202E–MAX213E, MAX232E/MAX241E

±15kV ESD-Protected, +5V RS-232 Transceivers

__________________________________________Typical Operating Characteristics

(Typical Operating Circuits, VCC= +5V, TA= +25°C, unless otherwise noted.)

5.0
0

MAX232E

TRANSMITTER OUTPUT VOLTAGE

vs. LOAD CAPACITANCE

MAX202E-TOC1

LOAD CAPACITANCE (pF)

VOH, -VOL (V)

5.5

6.0

6.5

7.0

7.5

8.0

1000 2000 3000 4000 5000

VCC = 5.5V

ALL TRANSMITTERS LOADED

DATA RATE = 120kbps

R

L

= 3kΩ

VCC = 4.5V

VCC = 5.0V

5.0

0

MAX202E/MAX203E

TRANSMITTER OUTPUT VOLTAGE

vs. LOAD CAPACITANCE

MAX202E-TOC2

LOAD CAPACITANCE (pF)

VOH, -VOL (V)

5.5

6.0

6.5

7.0

7.5

8.0

1000 2000 3000 4000 5000

VCC = 5.5V

VCC = 4.5V

VCC = 5.0V

ALL TRANSMITTERS LOADED

DATA RATE = 120kbps

R

L

= 3kΩ

5.0

0

MAX241E

TRANSMITTER OUTPUT VOLTAGE

vs. LOAD CAPACITANCE

MAX202E-TOC3

LOAD CAPACITANCE (pF)

VOH, -VOL (V)

5.5

6.0

6.5

7.0

7.5

8.0

1000 2000 3000 4000 5000

VCC = 4.5V

VCC = 5.5V

VCC = 5.0V

ALL TRANSMITTERS LOADED

DATA RATE = 120kbps

R

L

= 3kΩ

5.0
0

MAX211E/MAX213E

TRANSMITTER OUTPUT VOLTAGE

vs. LOAD CAPACITANCE

MAX202E-TOC4

LOAD CAPACITANCE (pF)

VOH, -VOL (V)

5.5

6.0

6.5

7.0

7.5

8.0

1000 2000 3000 4000 5000

VCC = 4.5V

VCC = 5.5V

VCC = 5.0V

ALL TRANSMITTERS LOADED

DATA RATE = 120kbps

R

L

= 3kΩ

0

0

MAX211E/MAX213E/MAX241E

TRANSMITTER SLEW RATE

vs. LOAD CAPACITANCE

MAX202E-TOC5

LOAD CAPACITANCE (pF)

SLEW RATE ( V/µs)

5

10

15

20

25

30

1000 2000 3000 4000 5000

+SLEW RATE

-SLEW RATE

ALL TRANSMITTERS LOADED

DATA RATE = 120kbps

R

L

= 3kΩ

_______________________________________________________________________________________ 5

MAX202E–MAX213E, MAX232E/MAX241E

±15kV ESD-Protected, +5V RS-232 Transceivers

____________________________Typical Operating Characteristics (continued)

(Typical Operating Circuits, VCC= +5V, TA= +25°C, unless otherwise noted.)

2

0

MAX202E/MAX203E/MAX232E

TRANSMITTER SLEW RATE

vs. LOAD CAPACITANCE

MAX202E-TOC6

LOAD CAPACITANCE (pF)

SLEW RATE ( V/µs)

4

6

8

10

12

14

1000 2000 3000 4000 5000

+SLEW RATE

-SLEW RATE

ALL TRANSMITTERS LOADED

DATA RATE = 120kbps

R

L

= 3kΩ

5.0

7.5

-7.5
0 3000

MAX205E–MAX208E

TRANSMITTER OUTPUT VOLTAGE

vs. LOAD CAPACITANCE

-5.0

2.5

MAX202E TOC-07

LOAD CAPACITANCE (pF)

OUTPUT VOLTAGE (V)

1000 2000 4000 5000

0

-2.5

VCC = +4.5V, RL = 3kΩ
1 TRANSMITTER AT FULL DATA RATE
4 TRANSMITTERS AT 1/8 DATA RATE

240kbps

240kbps

120kbps

120kbps

20kbps

20kbps

45

50

20

0 3000

MAX205E–MAX208E

SUPPLY CURRENT

vs. LOAD CAPACITANCE

25

40

MAX202E TOC-09

LOAD CAPACITANCE (pF)

SUPPLY CURRENT (mA)

1000 2000 4000 5000

35

30

VCC = +4.5V, RL = 3kΩ
1 TRANSMITTER AT FULL DATA RATE
4 TRANSMITTERS AT 1/8 DATA RATE

240kbps

120kbps

20kbps

10

12

0

0 3000

MAX205E–MAX208E

TRANSMITTER SLEW RATE

vs. LOAD CAPACITANCE

2

8

MAX202E TOC-08

LOAD CAPACITANCE (pF)

SLEW RATE (V/µs)

1000 2000 4000 5000

6
4

20
18
16
14

VCC = +4.5V, RL = 3kΩ
1 TRANSMITTER AT FULL DATA RATE
4 TRANSMITTERS AT 1/8 DATA RATE

FALL

RISE

2.5

5.0

-10.0

0 180

MAX205E–MAX208E

OUTPUT VOLTAGE vs. DATA RATE

-7.5

0

MAX202E TOC-10

DATA RATE (kbps)

OUTPUT VOLTAGE (V)

60 120 24015030 90 210

-2.5

-5.0

10.0

7.5

VCC = +4.5V, RL = 3kΩ
1 TRANSMITTER AT FULL DATA RATE
4 TRANSMITTERS AT 1/8 DATA RATE

V+

V-

V

OUT

+

V

OUT-

6 _______________________________________________________________________________________

MAX202E–MAX213E, MAX232E/MAX241E

±15kV ESD-Protected, +5V RS-232 Transceivers

MAX203E

MAX205E

_____________________________________________________________Pin Descriptions

MAX202E/MAX232E

15

10, 11

9, 12

8, 13

Ground19

RS-232 Driver Inputs13, 14

7, 14

6

4, 5

RS-232 Receiver Outputs12, 15

RS-232 Receiver Outputs10, 17

RS-232 Driver Outputs9, 18

-2VCCvoltage generated by the charge pump8

2

1, 3

Terminals for negative charge-pump capacitor5, 7

+2VCCvoltage generated by the charge pump3

+4.5V to +5.5V Supply-Voltage Input

Terminals for positive charge-pump capacitor2, 4

2016

GND

T_IN

R_OUT

R_IN

T_OUT

V-

C2+, C2-

V+

C1+, C1-

V

CC

N.C. No Connect—not internally connected.1, 6, 11, 16

__

FUNCTIONNAME

PIN

DIP/SO/TSSOP

LCC

11, 15 12, 15 Connect pins together.C2+

NAME

14 8 +2VCCvoltage generated by the charge pumpV+

SO

C1-

T_IN

R_OUT

R_IN

T_OUT

GND

V

CC

C1+

C2-

V-

13

FUNCTION

14

1, 2 RS-232 Driver Inputs

Make no connection to this pin.

3, 20 RS-232 Receiver Outputs
4, 19 RS-232 Receiver Inputs

1, 2

3, 20

5, 18 RS-232 Transmitter Outputs

6, 9 Ground

7 +4.5V to +5.5V Supply-Voltage Input

13 Make no connection to this pin.

4,19
5,18

6, 9

11, 16 Connect pins together.
10, 17 -2VCCvoltage generated by the charge pump. Connect pins together.

7

8
10, 16
12, 17

DIP

PIN

NAME FUNCTION

T_OUT RS-232 Driver Outputs

R_IN RS-232 Receiver Inputs

R_OUT TTL/CMOS Receiver Outputs. All receivers are inactive in shutdown.

PIN

1–4, 19

5, 10, 13, 18, 24

T_IN TTL/CMOS Driver Inputs. Internal pull-ups to VCC.
GND Ground

V

CC

+4.75V to +5.25V Supply Voltage

EN

Receiver Enable—active low

6, 9, 14, 17, 23
7, 8, 15, 16, 22

11
12
20

SHDN Shutdown Control—active high21

_______________________________________________________________________________________ 7

MAX202E–MAX213E, MAX232E/MAX241E

±15kV ESD-Protected, +5V RS-232 Transceivers

MAX208E

________________________________________________Pin Descriptions (continued)

MAX206E

MAX207E

V+

NAME FUNCTION

+2VCCgenerated by the charge pump

T_OUT RS-232 Driver Outputs

11

R_IN RS-232 Receiver Inputs

R_OUT TTL/CMOS Receiver Outputs. All receivers are inactive in shutdown.

PIN

1, 2, 3, 24

4, 16, 23

T_IN TTL/CMOS Driver Inputs. Internal pull-ups to VCC.
GND Ground

V

CC

+4.5V to +5.5V Supply Voltage

C1+, C1- Terminals for positive charge-pump capacitor

5, 17, 22

6, 7, 18, 19

8
9

10, 12

EN

Receiver Enable—active low20

C2+, C2- Terminals for negative charge-pump capacitor

V- -2VCCgenerated by the charge pump

13, 14

15

SHDN Shutdown Control—active high21

V+

NAME FUNCTION

+2VCCgenerated by the charge pump

T_OUT RS-232 Driver Outputs

11

R_IN RS-232 Receiver Inputs

R_OUT TTL/CMOS Receiver Outputs. All receivers are inactive in shutdown.

PIN

1, 2, 3, 20, 24

4, 16, 23

T_IN TTL/CMOS Driver Inputs. Internal pull-ups to VCC.

GND Ground

C2+, C2-

V

CC

+4.75V to +5.25V Supply Voltage

Terminals for negative charge-pump capacitor

C1+, C1- Terminals for positive charge-pump capacitor

5, 17, 22

6, 7, 18, 19, 21

8

V- -2VCCgenerated by the charge pump

13, 14

15

9

10, 12

V+

NAME FUNCTION

+2VCCgenerated by the charge pump

T_OUT RS-232 Driver Outputs

11

R_IN RS-232 Receiver Inputs

R_OUT TTL/CMOS Receiver Outputs. All receivers are inactive in shutdown.

PIN

1, 2, 20, 24
3, 7, 16, 23

T_IN TTL/CMOS Driver Inputs. Internal pull-ups to VCC.

GND Ground

C2+, C2-

V

CC

+4.5V to +5.5V Supply Voltage

Terminals for negative charge-pump capacitor

C1+, C1- Terminals for positive charge-pump capacitor

4, 6, 17, 22

5, 18, 19, 21

8

V- -2VCCgenerated by the charge pump

13, 14

15

9

10, 12

8 _______________________________________________________________________________________

MAX202E–MAX213E, MAX232E/MAX241E

±15kV ESD-Protected, +5V RS-232 Transceivers

V+

GND

MAX206E
MAX211E
MAX213E
MAX241E

0.1µF

*

V

CC

0.1µF

*

R1 TO R5

T1 TO T5

0.1µF

*

C1+

C1-

C2+

C2-

V

CC

+5.5V

T_OUT

R_OUT

400k

5k

I

SHDN

0V OR +5.5V

DRIVE

0.1µF

*

0.1µF

*

3k

+5.5V

R_IN

T_IN

CAPACITORS MAY BE

POLARIZED OR UNPOLARIZED

( ) ARE FOR MAX213E

*

1µF 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

VOL + 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

-2VCCvoltage 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 pull-ups 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+ +2VCCvoltage 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