MAXIM MAX200, MAX209, MAX211, MAX213 User Manual

19-0065; Rev 7; 12/05

+5V, RS-232 Transceivers

with 0.1µF External Capacitors

General Description

The MAX200–MAX209/MAX211/MAX213 transceivers
are designed for RS-232 and V.28 communication inter­faces where Q12V supplies are not available. On-board
charge pumps convert the +5V input to the Q10V needed
for RS-232 output levels. The MAX201 and MAX209
operate from +5V and +12V, respectively, and contain a
+12V to -12V charge-pump voltage converter.

The MAX200–MAX209/MAX211/MAX213 drivers and
receivers meet all EIA/TIA-232E and CCITT V.28 speci­fications at a 20kbps data rate. The drivers maintain the
Q5V EIA/TIA-232E output signal levels at data rates in
excess of 120kbps when loaded in accordance with the
EIA/TIA-232E specification.

The 5FW shutdown mode of the MAX200, MAX205,
MAX206, and MAX211 conserves energy in battery-pow­ered systems. The MAX213 has an active-low shutdown
and an active-high receiver enable control. Two receiv­ers of the MAX213 are active, allowing the ring indicator
(RI) to be monitored easily using only 75FW power.

The MAX211 and MAX213 are available in a 28-pin, wide
small-outline (SO) package and a 28-pin shrink small­outline (SSOP) package, which occupies only 40% of the
area of the SO. The MAX207 is now available in a 24-pin
SO package and a 24-pin SSOP. The MAX203 and
MAX205 use no external components and are recom­mended for applications with limited circuit board space.

Ordering Information appears at end of data sheet.

Selector Guide

Next-Generation Device Features

S For Low-Cost Applications:

MAX221E: ±15kV ESD-Protected, +5V, 1µA,

Single RS-232 Transceiver with AutoShutdown™

S For Low-Voltage and Space-Constrained 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
UCSP™ Package)

S For Space-Constrained Applications:

MAX3228E/MAX3229E: ±15kV ESD-Protected,

+2.5V to +5.5V, RS-232 Transceivers in UCSP

S 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

S For Low-Power Applications:

MAX3224E–MAX3227E/MAX3244E/MAX3245E:

±15kV ESD-Protected, 1µA, 1Mbps,
+3.0V to +5.5V, RS-232 Transceivers with
AutoShutdown Plus™

Applications

Computers: Laptops, Palmtops, Notebooks

Battery-Powered Equipment

Handheld Equipment

MAX200–MAX209/MAX211/MAX213

PART

MAX200 +5 5 0 0 4 Yes/No
MAX201 +5 and +9.0 to +13.2 2 2 0 2 No/No
MAX202 +5 2 2 0 4 No/No
MAX203 +5 2 2 0 None No/No
MAX204 +5 4 0 0 4 No/No
MAX205 +5 5 5 0 None Yes/Yes
MAX206 +5 4 3 0 4 Yes/Yes
MAX207 +5 5 3 0 4 No/No
MAX208 +5 4 4 0 4 No/No
MAX209 +5 and +9.0 to +13.2 3 5 0 2 No/Yes
MAX211 +5 4 5 0 4 Yes/Yes
MAX213 +5 4 5 2 4 Yes/Yes

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

POWER-SUPPLY

VOLTAGE (V)

_______________________________________________________________ Maxim Integrated Products 1

NUMBER

OF RS-232

DRIVERS

NUMBER

OF RS-232

RECEIVERS

NUMBER OF

RECEIVERS

ACTIVE IN

SHUTDOWN

NUMBER OF

EXTERNAL

CAPACITORS

(0.1µF)

LOW-POWER

SHUTDOWN/TTL

THREE-STATE

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

+5V, RS-232 Transceivers
with 0.1µF External Capacitors

ABSOLUTE MAXIMUM RATINGS

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

V+ .............................................................. (VCC - 0.3V) to +14V

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

Input Voltages

TIN ......................................................... -0.3V to (VCC + 0.3V)

RIN ................................................................................... Q30V

Output Voltages
T

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

OUT

R

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

OUT

Short-Circuit Duration
T

.......................................................................Continuous

OUT

Continuous Power Dissipation (TA = +70NC)
14-Pin Plastic DIP (derate 10.00mW/NC above +70NC) ...800mW
16-Pin Plastic DIP (derate 10.53mW/NC above +70NC) ...842mW

16-Pin SO (derate 8.70mW/NC above +70NC) .............696mW

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

16-Pin CERDIP (derate 10.00mW/NC above +70NC) ...800mW
20-Pin Plastic DIP (derate 11.11mW/NC above +70NC) ...889mW

Note 1: Maximum reflow temperature for the MAX203 and MAX205 is +225°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.

20-Pin Wide SO (derate 10.00mW/NC above +70NC) .. 800mW
20-Pin CERDIP (derate 11.11mW/NC above +70NC) ...889mW
24-Pin Narrow Plastic DIP

(derate 13.33mW/NC above +70NC) ....................... 1067mW

24-Pin Wide Plastic DIP

(derate 9.09mW/NC above +70NC) ........................... 727mW

24-Pin Wide SO (derate 11.76mW/NC above +70NC) .. 941mW

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

24-Pin CERDIP (derate 12.50mW/NC above +70NC) .1000mW
28-Pin Wide SO (derate 12.50mW/NC above +70NC) 1000mW

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

Operating Temperature Ranges

MAX2_ _C_ _ ...................................................... 0NC to +70NC

MAX2_ _E_ _ ................................................... -40NC to +85NC

MAX2_ _ M_ _ ............................................... -55NC to +125NC

Storage Temperature Range ............................ -65NC to +160NC

Lead Temperature (soldering, 10s) (Note 1) ..................+300NC

ELECTRICAL CHARACTERISTICS

(MAX202/MAX204/MAX206/MAX208/MAX211/MAX213: VCC = +5V Q10%; MAX200/MAX203/MAX205/MAX207: VCC = +5V Q5%,
C1–C4 = 0.1FF; MAX201/MAX209: VCC = +5V Q10%, V+ = +9.0V to +13.2V, TA = T

PARAMETER CONDITIONS MIN TYP MAX UNITS

Output-Voltage Swing

MAX200–MAX209/MAX211/MAX213

VCC Power-Supply
Current

V+ Power-Supply Current No load

Shutdown Supply Current

Input Logic Threshold
Low

Input Logic Threshold
High

Logic Pullup Current T

RS-232 Input-Voltage
Operating Range

All transmitter outputs loaded with 3kI to ground Q5 Q8

MAX202, MAX203 8 15

No load, TA = +25NC

Figure 1, TA = +25NC

TIN, EN, SHDN, EN, SHDN

T

IN

EN, SHDN, EN, SHDN

= 0V 15 200

IN

MAX200, MAX204–MAX208, MAX211,
MAX213

MAX201, MAX209 0.4 1
MAX201 5 10
MAX209 7 15
MAX200, MAX205, MAX206, MAX211 1 10
MAX213 15 50

MIN

to T

, unless otherwise noted.)

MAX

11 20

2.0

2.4

-30 +30 V

0.8 V

V

mA

mA

FA

V

FA

2

+5V, RS-232 Transceivers

with 0.1µF External Capacitors

ELECTRICAL CHARACTERISTICS (continued)

(MAX202/MAX204/MAX206/MAX208/MAX211/MAX213: VCC = +5V Q10%; MAX200/MAX203/MAX205/MAX207: VCC = +5V Q5%,
C1–C4 = 0.1FF; MAX201/MAX209: VCC = +5V Q10%, V+ = +9.0V to +13.2V, TA = T

PARAMETER CONDITIONS MIN TYP MAX UNITS

Receiver Input Threshold
Low

Receiver Input Threshold
High

RS-232 Input Hysteresis VCC = +5V, no hysteresis in shutdown 0.2 0.5 1.0 V
RS-232 Input Resistance

TTL/CMOS Output­Voltage Low

TTL/CMOS Output­Voltage High

TTL/CMOS Output
Leakage Current

Output Enable Time Figure 2

Output Disable Time Figure 2

Receiver Propagation
Delay

Transmitter Output
Resistance

Transition Region Slew
Rate

RS-232 Output Short­Circuit Current

Maximum Data Rate

VCC = +5V,
TA = +25NC

VCC = +5V,
TA = +25NC

VCC = +5V, TA = +25NC
I

= 3.2mA MAX201, MAX202, MAX203

OUT

I

= 1.6mA All others

OUT

I

= 1.0mA 3.5 V

OUT

EN = VCC, EN = 0V, 0 P R

SHDN = 0V, R4, R5
SHDN = V

MAX200–MAX211 0.5 10

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

CL = 50pF to 2500pF,
RL = 3kI to 7kI,
VCC = 5V, TA = +25NC
measured from +3V to

-3V or -3V to +3V

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

CC

Active mode 0.8 1.2
Shutdown mode, MAX213, R4, R5 0.6 1.5
Active mode 1.7 2.4
Shutdown mode, MAX213, R4, R5 1.5 2.4

P V

OUT

MAX205, MAX206, MAX209, MAX211,
MAX213

MAX205, MAX206, MAX209, MAX211,
MAX213

MAX213

OUT

MAX200, MAX202–MAX211, MAX213 3 5.5 30

MAX201 4 30

CC

= Q2V

MIN

to T

, unless otherwise noted.)

MAX

3 5 7

0.05

600 ns

200 ns

4 40

0.5 10

300

Q10 Q60

120 kbps

0.4 V

±10

V/Fs

V

V

kI

FA

Fs

I

mA

MAX200–MAX209/MAX211/MAX213

3

+5V, RS-232 Transceivers
with 0.1µF External Capacitors

Typical Operating Characteristics

MAX200/204/205/206/207/208/211/213

TRANSMITTER OUTPUT VOLTAGE

vs. LOAD CAPACITANCE

7.0

6.8

6.6

6.4

6.2

6.0

5.8

5.6

Tx OUTPUT VOLTAGE (IVI)

VCC = +5V

5.4

ALL Tx OUTPUTS
LOADED 3kIIIC

5.2
TA = +25NC

5.0

0 5000

L

LOAD CAPACITANCE (pF)

20kbps

MAX200-MAX213 toc01

60kbps

116kbps

400030001000 2000

MAX201

TRANSMITTER OUTPUT VOLTAGE

vs. LOAD CAPACITANCE

10.0

9.5

9.0

8.5

8.0
VCC = +5V

Tx OUTPUT VOLTAGE (IVI)

ALL Tx OUTPUTS
LOADED 3kIIIC

7.5

MAX200–MAX209/MAX211/MAX213

7.0

TA = +25NC
V+ = 12V

L

LOAD CAPACITANCE (pF)

MAX202/203

TRANSMITTER OUTPUT VOLTAGE

vs. LOAD CAPACITANCE

7.5

5.0

2.5
VCC = +4.5V, TA = +25NC

BOTH Tx OUTPUTS, LOADED 3kΩIIC

0

ONE TRANSMITTER AT FULL DATA RATE
ONE TRANSMITTER AT 1/8 DATA RATE

-2.5

Tx OUTPUT VOLTAGE (V)

-5.0

-7.0

20kbps

120kbps

120kbps

20kbps

LOAD CAPACITANCE (pF)

240kbps

MAX200-MAX213 toc06

L

240kbps

400030001000 20000 5000

MAX200/204/205/206/207/208/211/213

TRANSMITTER SKEW RATE

vs. LOAD CAPACITANCE

22

20

18

16

14

12

10

Tx SLEW RATE (V/Fs)

8

6

4

+SLEW RATE

2

0 5000

20kbps

60kbps

112kbps

400030001000 20000 5000

-SLEW RATE

LOAD CAPACITANCE (pF)

MAX200-MAX213 toc04

MAX202/203

TRANSMITTER SLEW RATE

vs. LOAD CAPACITANCE

14

12

10

8

6

Tx SLEW RATE (V/Fs)

4

2

0

+SLEW RATE

20kbps
120kbps
240kbps

VCC = +4.5V, TA = +25NC
BOTH Tx OUTPUTS, LOADED 3kΩIIC
ONE TRANSMITTER AT FULL DATA RATE
ONE TRANSMITTER AT 1/8 DATA RATE

LOAD CAPACITANCE (pF)

VCC = +5V
ALL Tx OUTPUTS
LOADED 3kIIIC
TA = +25NC

400030001000 2000

25

20

15

10

+SLEW RATE

Tx SLEW RATE (V/Fs)

5

0

-SLEW RATE
20kbps
120kbps

240kbps

L

400030001000 20000 5000

L

MAX200-MAX213 toc02

MAX201/MAX209

TRANSMITTER SLEW RATE

vs. LOAD CAPACITANCE

-SLEW RATE

MAX201

LOAD CAPACITANCE (pF)

MAX200-MAX213 toc07

TRANSMITTER OUTPUT VOLTAGE

vs. LOAD CAPACITANCE

10.0

9.8

9.6

9.4

9.2

9.0
VCC = +5V

Tx OUTPUT VOLTAGE (IVI)

ALL Tx OUTPUTS

8.8
LOADED 3kIIIC

8.6

TA = +25NC
V+ = 12V

8.4

LOAD CAPACITANCE (pF)

VCC = +5V
ALL Tx OUTPUTS
LOADED 3kIIIC
TA = +25NC
V+ = 12V

MAX209

400030001000 20000 5000

MAX202/203

SUPPLY CURRENT

vs. LOAD CAPACITANCE

35

VCC = +4.5V, TA = +25NC,
BOTH Tx OUTPUTS, LOADED 3kΩIIC
ONE TRANSMITTER AT FULL DATA RATE

30

ONE TRANSMITTER AT 1/8 DATA RATE

25

20

SUPPLY CURRENT (mA)

15

10

240kbps

LOAD CAPACITANCE (pF)

MAX209

L

L

MAX200-MAX213 toc05

20kbps

MAX200-MAX213 toc03

60kbps

116kbps

400030001000 20000 5000

L

MAX200-MAX213 toc08

120kbps

20kbps

400030001000 20000 5000

4

I

SHDN

+5.5V

0.1FF

0V OR +5.5V

DRIVE

0.1FF

0.1FF

+5.5V

+5.5V (0)

C1+

C1-

C2+

C2-

400kI

T

IN

R

OUT

EN (EN)

SHDN

(SHDN)

NOTE 1: ( ) ARE FOR MAX213.
NOTE 2: CAPACITORS CAN BE POLARIZED OR UNPOLARIZED.

+5.5V

V

MAX200
MAX205
MAX206
MAX211
MAX213

R1 T0 R5

GND

CC

T1 T0 T5

Figure 1. Shutdown Current Test Circuit

EN

INPUT

+3V

0V

OUTPUT ENABLE TIME

+3.5V

RECEIVER
OUTPUT
C

= 150pF

L

0V

EN

INPUT

V

RECEIVER
OUTPUTS

NOTE: POLARITY OF EN IS REVERSED FOR THE MAX213.

OH

V

+0.8V

+3V

OUTPUT ENABLE TIME

VOH - 0.1V

OL

V

OL

RL = 1kI

+ 0.1V

+5V, RS-232 Transceivers

with 0.1µF External Capacitors

Detailed Description

The MAX200–MAX209/MAX211/MAX213 consist of
three sections: charge-pump voltage converters, drivers
(transmitters), and receivers. Each section is described
in detail.

+5V to ±10V Dual Charge-Pump

Voltage Converter

The +5V to Q10V conversion is performed by two
charge-pump voltage converters (Figure 4). The first
uses capacitor C1 to double +5V to +10V, storing +10V
on the V+ output filter capacitor, C3. The second charge­pump voltage converter uses capacitor C2 to invert +10V
to -10V, storing -10V on the V- output filter capacitor, C4.

The MAX201 and MAX209 include only the V+ to V­charge pump, and are intended for applications that
have a VCC = +5V supply and a V+ supply in the +9V to
+13.2V range.

In shutdown mode, V+ is internally connected to VCC by
a 1kI pulldown resistor and V- is internally connected to
ground by a 1kI pullup resistor.

RS-232 Drivers

When VCC = +5V, the typical driver output-voltage swing
is Q8V when loaded with a nominal 5kI RS-232 receiver.
The output swing is guaranteed to meet the EIA/TIA-232E
and V.28 specifications, which call for Q5V minimum out-
put levels under worst-case conditions. These include
a minimum 3kI load, VCC = +4.5V, and the maximum
operating temperature. The open-circuit output-voltage
swing ranges from (V+ - 0.6V) to V-.

Input thresholds are both CMOS and TTL compatible.
The inputs of unused drivers can be left unconnected
since 400kI pullup resistors to VCC are included on­chip. Since all drivers invert, the pullup resistors force
the outputs of unused drivers low. The input pullup resis­tors typically source 15µA; therefore, the driver inputs
should be driven high or open circuited to minimize
power-supply current in shutdown mode.

When in low-power shutdown mode, the driver outputs
are turned off and their leakage current is less than 1mA,
even if the transmitter output is backdriven between 0V
and (VCC + 6V). Below -0.5V, the transmitter output is
diode clamped to ground with a 1kI series impedance.
The transmitter output is also zener clamped to approxi­mately (VCC + 6V), with a 1kI series impedance.

+ 2.5V

0.1FF

5kI

V+

V-

0.1FF

T

OUT

3kI

R

IN

+5.5V

MAX200–MAX209/MAX211/MAX213

Figure 2. Receiver Output Enable and Disable Timing

5

+5V, RS-232 Transceivers
with 0.1µF External Capacitors

0.1FF

+5V

0.1FF

V

CC

MAX200-MAX209

MAX211
MAX213

+5V

T1 T0 T5

R1 T0 R5

MINIMUM SLEW-RATE

TEST CIRCUIT

0.1FF

0.1FF

0V (+5V)

0V (+5V)

C1+

C1­C2+

C2-

400kI

T

IN

R

OUT

EN (EN)

SHDN (SHDN)

NOTE: ( ) ARE FOR MAX213.

Figure 3. Transition Slew-Rate Test Circuit

T

5kI

OUT

+5V

0.1FF

V+

0.1FF

V-

0.1FF 0.1FF

2500pF

3kI

R

IN

0.1FF

0V (+5V)

0V (+5V)

C1+

C1­C2+

C2-

400kI

T

IN

R

OUT

EN (EN)

SHDN (SHDN)

V

CC

MAX200-MAX209

MAX211
MAX213

+5V

T1 T0 T5

R1 T0 R5

MAXIMUM SLEW-RATE

TEST CIRCUIT

0.1FF

T

5kI

OUT

V+

V-

50pF

7kI

R

IN

V+ V+

V

CC

C1

MAX200–MAX209/MAX211/MAX213

GND

S3 S4

200kHz

C3

C1-

I

GND

V

CC

+

L

S5S1 S2C1+ S6C2+

+

R

L

C2

S7

C2-

C4

S8

Figure 4. Dual Charge-Pump Diagram

RS-232 Receivers

The receivers convert RS-232 signals to CMOS logic
output levels. Receiver outputs are inverting, maintain­ing compatibility with driver outputs. The guaranteed
receiver input thresholds of +0.8V and +2.4V are signifi­cantly tighter than the Q3.0V threshold required by the
EIA/TIA-232E specification. This allows receiver inputs
to respond to TTL/CMOS logic levels and improves noise
margin for RS-232 levels.

The MAX200–MAX209/MAX211/MAX213 guaranteed
+0.8V threshold (+0.6V in shutdown for the MAX213)
ensures that receivers shorted to ground have a logic 1
output. Also, the 5kI input resistance to ground ensures
that a receiver with its input left open also has a logic 1
output.

Receiver inputs have approximately +0.5V hysteresis.
This provides clean output transitions, even with slow
rise and fall time input signals with moderate amounts of
noise and ringing. In shutdown, the MAX213 receivers
R4 and R5 have no hysteresis.

GND

IL-

-

R

L

V-

6

+5V, RS-232 Transceivers

with 0.1µF External Capacitors

TWO TRANSMITTER
OUTPUTS:
ONE HIGH, ONE LOW

SHDN*

SHUTDOWN TRANSMITTERS ON

THREE TRANSMITTERS LOADED WITH 3kI||2500pF.
*SHUTDOWN POLARITY REVERSED FOR MAX213.

Figure 5. Transmitter Outputs When Exiting Shutdown

Shutdown and Enable Control

In shutdown mode, the MAX200/MAX205/MAX206/
MAX211/MAX213 charge pumps are turned off, V+ is
pulled down to VCC, V- is pulled to ground, and the
transmitter outputs are disabled. This reduces supply

current typically to 1µA (15µA for the MAX213). The time

MAX200–MAX209/MAX211/MAX213

required to exit shutdown is 1ms, as shown in Figure 5.

All receivers except R4 and R5 on the MAX213 are put
into a high-impedance state in shutdown mode. The
MAX213’s R4 and R5 receivers still function in shutdown
mode. These two receivers are useful for monitoring
external activity while maintaining minimal power con­sumption.

The enable control is used to put the receiver outputs
into a high-impedance state, so that the receivers can be
connected directly to a three-state bus. It has no effect
on the RS-232 drivers or on the charge pumps.

MAX213 Receiver Operation in Shutdown

During normal operation, the MAX213’s receiver propa­gation delay is typically 1Fs. When entering shutdown
with receivers active, R4 and R5 are not valid until 80Fs
after SHDN is driven low. In shutdown mode, propaga­tion delays increase to 4Fs for a high-to-low or a low-to­high transition.

When exiting shutdown, all receiver outputs are invalid
until the charge pumps reach nominal values (< 2ms
when using 0.1FF capacitors).

Table 1a. MAX200 Control Pin Configurations

SHDN OPERATION STATUS TRANSMITTERS T1–T5

0 Normal Operation All Active
1 Shutdown All High-Z

Table 1b. MAX205/MAX206/MAX211 Control Pin Configurations

SHDN

0 0 Normal Operation All Active All Active
0 1 Normal Operation All Active All High-Z
1 0 Shutdown All High-Z All High-Z

EN

OPERATION STATUS TRANSMITTERS T1–T5 RECEIVERS R1–R5

Table 1c. MAX213 Control Pin Configurations

SHDN

0 0 Shutdown All High-Z High-Z High-Z
0 1 Shutdown All High-Z High-Z Active*
1 0 Normal Operation All Active High-Z High-Z
1 1 Normal Operation All Active Active Active

*Active = active with reduced performance.

EN OPERATION STATUS TRANSMITTERS T1–T4

R1, R2, R3 R4, R5

RECEIVERS

7