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MAX202E–MAX213E,
MAX232E/MAX241E
±15kV ESD-Protected,
5V RS-232 Transceivers
General Description
The MAX202E-MAX213E, MAX232E, and MAX241E are
a family of RS-232 and V.28 transceivers with high ±15kV
ESD HBM protection and integrated charge pump circuitry
for single +5V supply operation. 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.
The MAX211E/MAX213E/MAX241E are available in 28-pin
SO and SSOP packages. 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.
Applications
● Battery-Powered Equipment
● Hand-Held Equipment
● Portable Diagnostics Equipment
Benefits and Features
● Saves Board Space
• Integrated High ±15kV HBM ESD Protection
• Integrated Charge Pump Circuitry
- Eliminates the Need for a Bipolar ±12V Supply
- Enables Single Supply Operation From +5V Supply
• Integrated 0.1μF Capacitors (MAX203E, MAX205E)
• 24 pin SSOP Package Saves up to 40% Versus SO
Package
● Saves Power for Reduced Power Requirements
• 1μA Shutdown Mode
• 15μA Shutdown Mode for MAX213E
Ordering Information
PART
TEMP RANGE
PIN-PACKAGE
MAX202ECPE
0°C to +70°C
16 Plastic DIP
MAX202ECSE
0°C to +70°C
16 Narrow SO
Ordering Information continued at end of data sheet.
Pin Configurations and Typical Operating Circuits appear
at end of data sheet.
AutoShutdown and UCSP are trademarks of Maxim Integrated
Products, Inc.
Selector Guide
PART
NO. OF RS-232
DRIVERS
NO. OF RS-232
RECEIVERS
RECEIVERS
ACTIVE IN
SHUTDOWN
NO. OF
EXTERNAL
CAPACITORS
(μF)
LOW-POWER
SHUTDOWN
TTL TRISTATE
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
Yes
19-0175; Rev 8; 1/21
© 2021 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners.
One Analog Way, Wilmington, MA 01887 U.S.A.
|
Tel: 781.329.4700
|
© 2021 Analog Devices, Inc. All rights reserved.
MAX202E–MAX213E,
MAX232E/MAX241E
±15kV ESD-Protected,
5V RS-232 Transceivers
Absolute Maximum Ratings
VCC...........................................................................-0.3V to +6V
V+............................................................... (VCC - 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 (VCC + 0.3V)
Short-Circuit Duration, T_OUT...................................Continuous
Continuous Power Dissipation (TA = +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, 10s).................................. +300°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.
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; TA = TMIN to TMAX; unless otherwise noted. Typical values
are at TA = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
MAX202E/203E
8
15
MAX205E–208E
11
20
MAX211E/213E
14
20
MAX232E
5
10
MAX241E
7
15
MAX205E/206E
1
10
MAX211E/241E
1
10
MAX213E
15
50
15
UNITS
DC CHARACTERISTICS
VCC Supply Current
ICC
No load,
TA = +25°C
TA = +25°C,
Figure 1
Shutdown Supply Current
mA
μA
LOGIC
Input Pullup Current
T_IN = 0V (MAX205E–208E/211E/213E/241E)
200
μA
Input Leakage Current
T_IN = 0V to VCC (MAX202E/203E/232E)
±10
μA
T_IN; EN, SHDN (MAX213E) or
EN, SHDN (MAX205E–208E/211E/241E)
0.8
V
Input Threshold Low
VIL
T_IN
2.0
EN, SHDN (MAX213E) or EN, SHDN
(MAX205E–208E/211E/241E)
2.4
Input Threshold High
VIH
Output-Voltage Low
VOL
R_OUT; IOUT = 3.2mA (MAX202E/203E/232E) or
IOUT = 1.6mA (MAX205E/208E/211E/213E/241E)
Output-Voltage High
VOH
R_OUT; IOUT = -1.0mA
Output Leakage Current
www.analog.com
EN = VCC, EN = 0V, 0V ≤ ROUT ≤ VCC,
MAX205E–208E/211E/213E/241E outputs
disabled
V
0.4
3.5
VCC - 0.4
±0.05
V
V
±10
μA
Analog Devices │ 2
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; TA = TMIN to TMAX; unless otherwise noted. Typical values
are at TA = +25°C.)
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
30
V
EIA/TIA-232E RECEIVER INPUTS
Input Voltage Range
-30
All parts, normal operation
0.8
1.2
MAX213E, SHDN = 0V,
EN = VCC
0.6
1.5
Input Threshold Low
TA = +25°C,
VCC = 5V
Input Threshold High
TA = +25°C,
VCC = 5V
Input Hysteresis
VCC = 5V, no hysteresis in shutdown
Input Resistance
TA = +25°C, VCC = 5V
V
All parts, normal operation
1.7
2.4
MAX213E (R4, R5),
SHDN = 0V, EN = VCC
1.5
2.4
0.2
0.5
1.0
V
3
5
7
kΩ
±9
V
EIA/TIA-232E TRANSMITTER OUTPUTS
Output Voltage Swing
All drivers loaded with 3kΩ to ground (Note 1)
±5
Output Resistance
VCC = V+ = V- = 0V, VOUT = ±2V
300
Output Short-Circuit Current
V
Ω
±10
±60
mA
TIMING CHARACTERISTICS
RL = 3kΩ to 7kΩ, CL = 50pF to 1000pF,
one transmitter switching
Maximum Data Rate
Receiver Propagation Delay
tPLHR,
tPHLR
120
All parts, normal operation
CL = 150pF
MAX213E (R4, R5),
SHDN = 0V, EN = VCC
kbps
0.5
10
4
40
µs
Receiver Output Enable Time
MAX205E/206E/211E/213E/241E normal
operation, Figure 2
600
ns
Receiver Output Disable Time
MAX205E/206E/211E/213E/241E normal
operation, Figure 2
200
ns
2
µs
Transmitter Propagation Delay
Transition-Region Slew Rate
tPLHT,
tPHLT
RL = 3kΩ, CL = 2500pF, all transmitters
loaded
TA = +25°C, VCC = 5V, RL = 3kΩ to 7kΩ,
CL = 50pF to 1000pF, measured from -3V to
+3V or +3V to -3V, Figure 3
3
6
30
V/μs
ESD PERFORMANCE: TRANSMITTER OUTPUTS, RECEIVER INPUTS
ESD-Protection Voltage
Human Body Model
±15
IEC1000-4-2, Contact Discharge
±8
IEC1000-4-2, Air-Gap Discharge
±15
kV
Note 1: MAX211EE_ _ tested with VCC = +5V ±5%.
www.analog.com
Analog Devices │ 3
MAX202E–MAX213E,
MAX232E/MAX241E
±15kV ESD-Protected,
5V RS-232 Transceivers
Typical Operating Characteristics
VCC = 5.0V
6.0
5.5
5.0
1000
2000
VCC = 5.5V
6.5
VCC = 5.0V
6.0
3000
4000
5.0
5000
0
2000
3000
4000
5.5
VCC = 4.5V
1000
VCC = 5.0V
2000
3000
4000
LOAD CAPACITANCE (pF)
5000
MAX202E-TOC3
VCC = 5.0V
6.0
5.0
VCC = 4.5V
0
1000
2000
3000
4000
5000
LOAD CAPACITANCE (pF)
MAX211E/MAX213E/MAX241E
TRANSMITTER SLEW RATE
vs. LOAD CAPACITANCE
ALL TRANSMITTERS LOADED
DATA RATE = 120kbps
RL = 3kΩ
25
20
15
10
-SLEW RATE
5
0
6.5
5000
30
SLEW RATE ( V/µs)
VOH, -VOL (V)
VCC = 5.5V
6.0
www.analog.com
1000
MAX202E-TOC4
ALL TRANSMITTERS LOADED
DATA RATE = 120kbps
RL = 3kΩ
6.5
VCC = 5.5V
LOAD CAPACITANCE (pF)
7.0
5.0
7.0
5.5
MAX211E/MAX213E
TRANSMITTER OUTPUT VOLTAGE
vs. LOAD CAPACITANCE
7.5
ALL TRANSMITTERS LOADED
DATA RATE = 120kbps
RL = 3kΩ
7.5
VCC = 4.5V
LOAD CAPACITANCE (pF)
8.0
8.0
5.5
VCC = 4.5V
0
7.0
MAX241E
TRANSMITTER OUTPUT VOLTAGE
vs. LOAD CAPACITANCE
MAX202E-TOC5
VCC = 5.5V
6.5
7.5
VOH, -VOL (V)
VOH, -VOL (V)
7.0
ALL TRANSMITTERS LOADED
DATA RATE = 120kbps
RL = 3kΩ
VOH, -VOL (V)
ALL TRANSMITTERS LOADED
DATA RATE = 120kbps
RL = 3kΩ
7.5
8.0
MAX202E-TOC1
8.0
MAX202E/MAX203E
TRANSMITTER OUTPUT VOLTAGE
vs. LOAD CAPACITANCE
MAX202E-TOC2
MAX232E
TRANSMITTER OUTPUT VOLTAGE
vs. LOAD CAPACITANCE
0
+SLEW RATE
0
1000
2000
3000
4000
5000
LOAD CAPACITANCE (pF)
Analog Devices │ 4
MAX202E–MAX213E,
MAX232E/MAX241E
±15kV ESD-Protected,
5V RS-232 Transceivers
Typical Operating Characteristics (continued)
10
8
-SLEW RATE
6
2
0
1000
2000
240kbps
2.5
VCC = +4.5V, RL = 3kΩ
1 TRANSMITTER AT FULL DATA RATE
4 TRANSMITTERS AT 1/8 DATA RATE
0
-2.5
240kbps
-5.0
3000
4000
-7.5
5000
0
3000
40
120kbps
35
20kbps
30
VCC = +4.5V, RL = 3kΩ
1 TRANSMITTER AT FULL DATA RATE
4 TRANSMITTERS AT 1/8 DATA RATE
1000
2000
3000
4000
LOAD CAPACITANCE (pF)
MAX202E TOC-08
6
0
5000
1000
0
2000
4000
3000
5000
LOAD CAPACITANCE (pF)
MAX205E–MAX208E
OUTPUT VOLTAGE vs. DATA RATE
V+
7.5
5.0
VOUT+
2.5
VCC = +4.5V, RL = 3kΩ
1 TRANSMITTER AT FULL DATA RATE
4 TRANSMITTERS AT 1/8 DATA RATE
0
-2.5
VOUT-
-5.0
V-
-7.5
5000
RISE
FALL
8
4
10.0
MAX202E TOC-09
240kbps
0
12
10
2
4000
OUTPUT VOLTAGE (V)
SUPPLY CURRENT (mA)
2000
14
LOAD CAPACITANCE (pF)
45
25
16
120kbps
MAX205E–MAX208E
SUPPLY CURRENT
vs. LOAD CAPACITANCE
50
www.analog.com
1000
VCC = +4.5V, RL = 3kΩ
1 TRANSMITTER AT FULL DATA RATE
4 TRANSMITTERS AT 1/8 DATA RATE
18
20kbps
LOAD CAPACITANCE (pF)
20
120kbps
20
MAX202E TOC-07
5.0
+SLEW RATE
4
20kbps
MAX205E–MAX208E
TRANSMITTER SLEW RATE
vs. LOAD CAPACITANCE
-10.0
MAX202E TOC-10
SLEW RATE ( V/µs)
12
7.5
OUTPUT VOLTAGE (V)
ALL TRANSMITTERS LOADED
DATA RATE = 120kbps
RL = 3kΩ
MAX202E-TOC6
14
MAX205E–MAX208E
TRANSMITTER OUTPUT VOLTAGE
vs. LOAD CAPACITANCE
SLEW RATE (V/µs)
MAX202E/MAX203E/MAX232E
TRANSMITTER SLEW RATE
vs. LOAD CAPACITANCE
0
30
60
90
120 150 180 210 240
DATA RATE (kbps)
Analog Devices │ 5
MAX202E–MAX213E,
MAX232E/MAX241E
±15kV ESD-Protected,
5V RS-232 Transceivers
Pin Descriptions
MAX202E/MAX232E
PIN
NAME
FUNCTION
DIP/SO/TSSOP
LCC
1, 3
2, 4
C1+, C1-
Terminals for Positive Charge-Pump Capacitor
2
3
V+
+2VCC Voltage Generated by the Charge Pump
4, 5
5, 7
C2+, C2-
Terminals for Negative Charge-Pump Capacitor
-2VCC Voltage Generated by the Charge Pump
6
8
V
7, 14
9, 18
T_OUT
RS-232 Driver Outputs
8, 13
10, 17
R_IN
RS-232 Receiver Inputs
9, 12
12, 15
R_OUT
10, 11
13, 14
T_IN
RS-232 Driver Inputs
15
19
GND
Ground
16
20
VCC
+4.5V to +5.5V Supply-Voltage Input
—
1, 6, 11, 16
N.C.
No Connection—Not Internally Connected
RS-232 Receiver Outputs
MAX203E
PIN
NAME
FUNCTION
DIP
SO
1, 2
1, 2
T_IN
3, 20
3, 20
R_OUT
4,19
4, 19
R_IN
5,18
5, 18
T_OUT
6, 9
6, 9
GND
Ground
7
7
VCC
+4.5V to +5.5V Supply-Voltage Input
RS-232 Driver Inputs
RS-232 Receiver Outputs
RS-232 Receiver Inputs
RS-232 Transmitter Outputs
8
13
C1+
Make no connection to this pin.
10, 16
11, 16
C2-
Connect pins together.
12, 17
10, 17
V-
13
14
C1-
Make no connection to this pin.
14
8
V+
+2VCC Voltage Generated by the Charge Pump
11, 15
12, 15
C2+
-2VCC Voltage Generated by the Charge Pump. Connect pins together.
Connect pins together.
MAX205E
PIN
NAME
FUNCTION
1–4, 19
T_OUT
RS-232 Driver Outputs
5, 10, 13, 18, 24
R_IN
RS-232 Receiver Inputs
6, 9, 14, 17, 23
R_OUT
TTL/CMOS Receiver Outputs. All receivers are inactive in shutdown.
7, 8, 15, 16, 22
T_IN
TTL/CMOS Driver Inputs. Internal pullups to VCC.
11
GND
Ground
12
VCC
+4.75V to +5.25V Supply Voltage
20
EN
Receiver Enable—Active Low
21
SHDN
www.analog.com
Shutdown Control—Active High
Analog Devices │ 6
MAX202E–MAX213E,
MAX232E/MAX241E
±15kV ESD-Protected,
5V RS-232 Transceivers
Pin Descriptions (continued)
MAX206E
PIN
NAME
1, 2, 3, 24
T_OUT
RS-232 Driver Outputs
FUNCTION
4, 16, 23
R_IN
RS-232 Receiver Inputs
5, 17, 22
R_OUT
6, 7, 18, 19
T_IN
TTL/CMOS Driver Inputs. Internal pullups to VCC.
8
GND
Ground
9
VCC
+4.5V to +5.5V Supply Voltage
10, 12
C1+, C1-
11
V+
13, 14
C2+, C2-
15
V-
-2VCC Generated by the Charge Pump
20
EN
Receiver Enable—Active Low
21
SHDN
TTL/CMOS Receiver Outputs. All receivers are inactive in shutdown.
Terminals for Positive Charge-Pump Capacitor
+2VCC Generated by the Charge Pump
Terminals for Negative Charge-Pump Capacitor
Shutdown Control—Active High
MAX207E
PIN
NAME
FUNCTION
1, 2, 3, 20, 24
T_OUT
RS-232 Driver Outputs
4, 16, 23
R_IN
RS-232 Receiver Inputs
5, 17, 22
R_OUT
6, 7, 18, 19, 21
T_IN
TTL/CMOS Driver Inputs. Internal pullups to VCC.
8
GND
Ground
9
VCC
+4.75V to +5.25V Supply Voltage
10, 12
C1+, C1-
11
V+
13, 14
C2+, C2-
15
V-
TTL/CMOS Receiver Outputs. All receivers are inactive in shutdown.
Terminals for Positive Charge-Pump Capacitor
+2VCC Generated by the Charge Pump
Terminals for Negative Charge-Pump Capacitor
-2VCC Generated by the Charge Pump
MAX208E
PIN
NAME
1, 2, 20, 24
T_OUT
RS-232 Driver Outputs
FUNCTION
3, 7, 16, 23
R_IN
RS-232 Receiver Inputs
4, 6, 17, 22
R_OUT
5, 18, 19, 21
T_IN
TTL/CMOS Driver Inputs. Internal pullups to VCC.
8
GND
Ground
9
VCC
+4.5V to +5.5V Supply Voltage
10, 12
C1+, C1-
11
V+
13, 14
C2+, C2-
15
V-
www.analog.com
TTL/CMOS Receiver Outputs. All receivers are inactive in shutdown.
Terminals for Positive Charge-Pump Capacitor
+2VCC Generated by the Charge Pump
Terminals for Negative Charge-Pump Capacitor
-2VCC Generated by the Charge Pump
Analog Devices │ 7
MAX202E–MAX213E,
MAX232E/MAX241E
±15kV ESD-Protected,
5V RS-232 Transceivers
Pin Descriptions (continued)
MAX211E/MAX213E/MAX241E
PIN
NAME
1, 2, 3, 28
VT_OUT
RS-232 Driver Outputs
FUNCTION
4, 9, 18, 23, 27
R_IN
RS-232 Receiver Inputs
5, 8, 19, 22, 26
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.
6, 7, 20, 21
T_IN
TTL/CMOS Driver Inputs. Only the MAX211E, MAX213E, and MAX241E have internal pullups to VCC.
10
GND
Ground
11
VCC
+4.5V to +5.5V Supply Voltage
12, 14
C1+, C1-
Terminals for Positive Charge-Pump Capacitor
13
V+
+2VCC Voltage Generated by the Charge Pump
15, 16
C2+, C2-
Terminals for Negative Charge-Pump Capacitor
17
V-
-2VCC Voltage Generated by the Charge Pump
EN
Receiver Enable—Active Low (MAX211E, MAX241E)
EN
Receiver Enable—Active High (MAX213E)
24
25
SHDN
Shutdown Control—Active High (MAX211E, MAX241E)
SHDN
Shutdown Control—Active Low (MAX213E)
ISHDN
+5.5V
0.1µF*
0.1µF*
0.1µF*
VCC
C1+
C1C2+ V
CC
C2T_IN
0V OR +5.5V
DRIVE
+5.5V (0V)
0V
OUTPUT ENABLE TIME
+3.5V
RECEIVER
OUTPUT
CL = 150pF
T1 TO T5
T_OUT
R1 TO R5
R_OUT
EN (EN)
R_IN
( ) ARE FOR MAX213E
+5.5V
3kΩ
5kΩ
SHDN (SHDN)
NOTE:
POLARITY OF EN
IS REVERSED
FOR THE
MAX213E
EN
INPUT
0V
RECEIVER
OUTPUTS
OUTPUT DISABLE TIME
VOH
VOL
VOH - 0.1V
RL= 1kΩ
+2.5V
VOL + 0.1V
CAPACITORS MAY BE
POLARIZED OR UNPOLARIZED
Figure 1. Shutdown-Current Test Circuit (MAX206E,
MAX211E/MAX213E/MAX241E)
www.analog.com
+0.8V
+3V
GND
* 1µF FOR MAX241E
+3V
V+
0.1µF*
MAX206E
MAX211E VMAX213E
MAX241E
400kΩ
+5.5V
EN
INPUT
0.1µF*
Figure 2. Receiver Output Enable and Disable Timing
(MAX205E/MAX206E/MAX211E/MAX213E/MAX241E)
Analog Devices │ 8
MAX202E–MAX213E,
MAX232E/MAX241E
±15kV ESD-Protected,
5V RS-232 Transceivers
+5V
+5V
0.1µF*
0.1µF*
0.1µF*
VCC
C1+
0.1µF*
C1-
C2-
V-
0V (+5V)
0V (+5V)
0.1µF*
400kΩ
T_
T_IN
R_OUT
0.1µF*
0.1µF*
C2+ V
CC
0.1µF*
C1+
V+
MAX2_ _E
R_
EN (EN)
0.1µF*
T_OUT
R_IN
C2+ V
CC
C2-
3Ωk
2500pF
0V (+5V)
SHDN (SHDN)
( ) ARE FOR MAX213E
* 1µF FOR MAX232E/MAX241E
0.1µF*
400kΩ
R_OUT
0V (+5V)
V+
MAX2_ _E V-
T_IN
5kΩ
MINIMUM SLEW-RATE TEST CIRCUIT
C1-
VCC
EN (EN)
T_
R_
T_OUT
7kΩ
R_IN
50pF
5kΩ
SHDN (SHDN)
MAXIMUM SLEW-RATE TEST CIRCUIT
TRANSMITTER INPUT PULL-UP RESISTORS, ENABLE, AND SHUTDOWN ARE NOT PROVIDED ON THE MAX202E, MAX203E, AND MAX232E.
ENABLE AND SHUTDOWN ARE NOT PROVIDED ON THE MAX207E AND MAX208E.
Figure 3. Transition Slew-Rate Circuit
Detailed Description
The MAX202E–MAX213E, MAX232E/MAX241E consist
of three sections: charge-pump voltage converters, drivers (transmitters), and receivers. These E versions provide extra protection against ESD. They survive ±15kV
discharges to the RS-232 inputs and outputs, tested
using the Human Body Model. When tested according
to IEC1000-4-2, they survive ±8kV contact-discharges
and ±15kV air-gap discharges. The rugged E versions
are intended for use in harsh environments or applications where the RS-232 connection is frequently changed
(such as notebook computers). The standard (non“E”) MAX202, MAX203, MAX205–MAX208, MAX211,
MAX213, MAX232, and MAX241 are recommended for
applications where cost is critical.
+5V to ±10V Dual Charge-Pump
Voltage Converter
The +5V to ±10V conversion is performed by dual chargepump voltage converters (Figure 4). The first chargepump converter uses capacitor C1 to double the +5V into
+10V, storing the +10V on the output filter capacitor, C3.
www.analog.com
The second uses C2 to invert the +10V into -10V, storing
the -10V on the V- output filter capacitor, C4.
In shutdown mode, V+ is internally connected to VCC by
a 1kΩ pull-down resistor, and V- is internally connected to
ground by a 1kΩ pull up resistor.
RS-232 Drivers
With VCC = 5V, the typical driver output voltage swing is
±8V when loaded with a nominal 5kΩ RS-232 receiver.
The output swing is guaranteed to meet EIA/TIA-232E
and V.28 specifications that call for ±5V minimum output
levels under worst-case conditions. These include a 3kΩ
load, minimum VCC, and maximum operating temperature. The open-circuit output voltage swings from (V+ 0.6V) to V-.
Input thresholds are CMOS/TTL compatible. The unused
drivers’ inputs on the MAX205E–MAX208E, MAX211E,
MAX213E, and MAX241E can be left unconnected
because 400kΩ pull up resistors to VCC are included onchip. Since all drivers invert, the pull up resistors force the
unused drivers’ outputs low. The MAX202E, MAX203E,
and MAX232E do not have pull up resistors on the
transmitter inputs.
Analog Devices │ 9
MAX202E–MAX213E,
MAX232E/MAX241E
VCC
S1
±15kV ESD-Protected,
5V RS-232 Transceivers
S2
C1+
C1
GND
S3
C3
S4
C1-
V+
S5
IL +
VCC
C2+ S6
C2
RL+
S7
GND
C4
I L-
R L-
S8
V-
C2-
PART
f CLK
MAX202E
MAX203E
MAX205E–208E
MAX211E/213E
MAX232E
MAX241E
f CLK
(kHz)
230
230
200
200
140
30
Figure 4. Charge-Pump Diagram
When in low-power shutdown mode, the MAX205E/
MAX206E/MAX211E/MAX213E/MAX241E driver outputs
are turned off and draw only leakage currents—even if
they are back-driven with voltages between 0V and12V.
Below -0.5V in shutdown, the transmitter output is diodeclamped to ground with a 1kΩ series impedance.
RS-232 Receivers
The receivers convert the RS-232 signals to CMOS-logic
output levels. The guaranteed 0.8V and 2.4V receiver
input thresholds are significantly tighter than the ±3V
thresholds required by the EIA/TIA-232E specification.
This allows the receiver inputs to respond to TTL/CMOSlogic levels, as well as RS-232 levels.
The guaranteed 0.8V input low threshold ensures that
receivers shorted to ground have a logic 1 output. The
5kΩ input resistance to ground ensures that a receiver
with its input left open will also have a logic 1 output.
Receiver inputs have approximately 0.5V hysteresis. This
provides clean output transitions, even with slow rise/falltime signals with moderate amounts of noise and ringing.
In shutdown, the MAX213E’s R4 and R5 receivers have
no hysteresis.
www.analog.com
Shutdown and Enable Control
(MAX205E/MAX206E/MAX211E/
MAX213E/MAX241E)
In shutdown mode, the 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 MAX213E). The
time required to exit shutdown is under 1ms, as shown
in Figure 5.
Receivers
All MAX213E receivers, except R4 and R5, are put into a
high-impedance state in shutdown mode (see Tables 1a
and 1b). The MAX213E’s R4 and R5 receivers still function in shutdown mode. These two awake-in-shutdown
receivers can monitor external activity while maintaining
minimal power consumption.
The enable control is used to put the receiver outputs
into a high-impedance state, to allow wire-OR connection
of two EIA/TIA-232E ports (or ports of different types) at
the UART. It has no effect on the RS-232 drivers or the
charge pumps.
Note: The enable control pin is active low for the
MAX211E/MAX241E (EN), but is active high for the
MAX213E (EN). The shutdown control pin is active
Analog Devices │ 10
MAX202E–MAX213E,
MAX232E/MAX241E
±15kV ESD-Protected,
5V RS-232 Transceivers
high for the MAX205E/MAX206E/MAX211E/MAX241E
(SHDN), but is active low for the MAX213E (SHDN).
MAX211E
The MAX213E’s receiver propagation delay is typically
0.5μs in normal operation. In shutdown mode, propagation delay increases to 4μs for both rising and falling
transitions. The MAX213E’s receiver inputs have approximately 0.5V hysteresis, except in shutdown, when receivers R4 and R5 have no hysteresis.
3V
SHDN
0V
10V
V+
5V
0V
When entering shutdown with receivers active, R4 and R5
are not valid until 80μs after SHDN is driven low. When
coming out of shutdown, all receiver outputs are invalid
until the charge pumps reach nominal voltage levels (less
than 2ms when using 0.1μF capacitors).
V-
-5V
-10V
±15kV ESD Protection
As with all Maxim devices, ESD-protection structures are
incorporated on all pins to protect against electro-static
discharges encountered during handling and assembly. The driver outputs and receiver inputs have extra
protection against static electricity. Maxim’s engineers
developed state-of-the-art structures to protect these
pins against ESD of ±15kV without damage. The ESD
structures withstand high ESD in all states: normal
operation, shutdown, and powered down. After an ESD
event, Maxim’s E versions keep working without latchup,
whereas competing RS-232 products can latch and must
be powered down to remove latchup.
ESD protection can be tested in various ways; the transmitter outputs and receiver inputs of this product family
are characterized for protection to the following limits:
1) ±15kV using the Human Body Model
2) ±8kV using the contact-discharge method specified in
IEC1000-4-2
3) ±15kV using IEC1000-4-2’s air-gap method.
ESD Test Conditions
ESD performance depends on a variety of conditions.
Contact Maxim for a reliability report that documents test
set-up, test methodology, and test results.
Human Body Model
Figure 6a shows the Human Body Model, and Figure
6b shows the current waveform it generates when discharged into a low impedance. This model consists of a
100pF capacitor charged to the ESD voltage of interest,
which is then discharged into the test device through a
1.5kΩ resistor.
www.analog.com
200µs/div
Figure 5. MAX211E V+ and V- when Exiting Shutdown (0.1μF
capacitors)
Table 1a. MAX205E/MAX206E/MAX211E/
MAX241E Control Pin Configurations
OPERATION
STATUS
SHDN
EN
0
0
Normal
Operation
All Active
All Active
0
1
Normal
Operation
All Active
All High-Z
1
X
Shutdown
All High-Z
All High-Z
Tx
Rx
X = Don’t care.
Table 1b. MAX213E Control Pin
Configurations
OPERATION
STATUS
Rx
SHDN
EN
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
Tx 1–4
1–3
4, 5
Active
*Active = active with reduced performance
Analog Devices │ 11
MAX202E–MAX213E,
MAX232E/MAX241E
CHARGE-CURRENTLIMIT RESISTOR
HIGHVOLTAGE
DC
SOURCE
Cs
100pF
RD 1500Ω
I P 100%
90%
DISCHARGE
RESISTANCE
STORAGE
CAPACITOR
CHARGE-CURRENTLIMIT RESISTOR
HIGHVOLTAGE
DC
SOURCE
Cs
150pF
10%
0
0
TIME
t RL
t DL
CURRENT WAVEFORM
Figure 6b. Human Body Model Current Waveform
I
100%
DISCHARGE
RESISTANCE
90%
DEVICE
UNDER
TEST
Figure 7a. IEC1000-4-2 ESD Test Model
IEC1000-4-2
The IEC1000-4-2 standard covers ESD testing and performance of finished equipment; it does not specifically
refer to integrated circuits. The MAX202E/MAX203E–
MAX213E, MAX232E/MAX241E help you design equipment that meets level 4 (the highest level) of IEC10004-2, without the need for additional ESD-protection
components.
The major difference between tests done using the
Human Body Model and IEC1000-4-2 is higher peak current in IEC1000-4-2, because series resistance is lower
in the IEC1000-4-2 model. Hence, the ESD withstand
voltage measured to IEC1000-4-2 is generally lower than
that measured using the Human Body Model. Figure 7b
shows the current waveform for the 8kV IEC1000-4-2
level-four ESD contact-discharge test.
www.analog.com
36.8%
RD 330Ω
STORAGE
CAPACITOR
PEAK-TO-PEAK RINGING
(NOT DRAWN TO SCALE)
AMPERES
DEVICE
UNDER
TEST
Figure 6a. Human Body ESD Test Model
RC 50MΩ to 100MΩ
Ir
I PEAK
RC 1MΩ
±15kV ESD-Protected,
5V RS-232 Transceivers
10%
t r = 0.7ns to 1ns
t
30ns
60ns
Figure 7b. IEC1000-4-2 ESD Generator Current Waveform
The air-gap test involves approaching the device with a
charged probe. The contact-discharge method connects
the probe to the device before the probe is energized.
Machine Model
The Machine Model for ESD tests all pins using a 200pF
storage capacitor and zero discharge resistance. Its
objective is to emulate the stress caused by contact that
occurs with handling and assembly during manufacturing.
Of course, all pins require this protection during manufacturing, not just RS-232 inputs and outputs. Therefore,
after PC board assembly, the Machine Model is less relevant to I/O ports.
Analog Devices │ 12
MAX202E–MAX213E,
MAX232E/MAX241E
±15kV ESD-Protected,
5V RS-232 Transceivers
Applications Information
V+ and V- as Power Supplies
Capacitor Selection
The capacitor type used for C1–C4 is not critical for
proper operation. The MAX202E, MAX206–MAX208E,
MAX211E, and MAX213E require 0.1μF capacitors, and
the MAX232E and MAX241E require 1μF capacitors,
although in all cases capacitors up to 10μF can be used
without harm. Ceramic, aluminum-electrolytic, or tantalum
capacitors are suggested for the 1μF capacitors, and
ceramic dielectrics are suggested for the 0.1μF capacitors. When using the minimum recommended capacitor values, make sure the capacitance value does not
degrade excessively as the operating temperature varies.
If in doubt, use capacitors with a larger (e.g., 2x) nominal
value. The capacitors’ effective series resistance (ESR),
which usually rises at low temperatures, influences the
amount of ripple on V+ and V-.
Use larger capacitors (up to 10μF) to reduce the output impedance at V+ and V-. This can be useful when
“stealing” power from V+ or from V-. The MAX203E and
MAX205E have internal charge-pump capacitors.
Bypass VCC to ground with at least 0.1μF. In applications
sensitive to power-supply noise generated by the charge
pumps, decouple VCC to ground with a capacitor the
same size as (or larger than) the charge-pump capacitors
(C1–C4).
A small amount of power can be drawn from V+ and V-,
although this will reduce both driver output swing and
noise margins. Increasing the value of the charge-pump
capacitors (up to 10μF) helps maintain performance when
power is drawn from V+ or V-.
Driving Multiple Receivers
Each transmitter is designed to drive a single receiver.
Transmitters can be paralleled to drive multiple receivers.
Driver Outputs when Exiting Shutdown
The driver outputs display no ringing or undesirable
transients as they come out of shutdown.
High Data Rates
These transceivers maintain the RS-232 ±5.0V minimum
driver output voltages at data rates of over 120kbps. For
data rates above 120kbps, refer to the Transmitter Output
Voltage vs. Load Capacitance graphs in the Typical
Operating Characteristics. Communication at these high
rates is easier if the capacitive loads on the transmitters
are small; i.e., short cables are best.
Table 2. Summary of EIA/TIA-232E, V.28 Specifications
PARAMETER
CONDITIONS
EIA/TIA-232E, V.28 SPECIFICATIONS
0 Level
3kΩ to 7kΩ load
+5V to +15V
1 Level
3kΩ to 7kΩ load
-5V to -15V
Driver Output Level, Max
No load
±25V
Data Rate
3kΩ ≤ RL ≤ 7kΩ, CL ≤ 2500pF
Up to 20kbps
Driver Output Voltage
Receiver Input Voltage
0 Level
+3V to +15V
1 Level
-3V to -15V
Receiver Input Level
Instantaneous Slew Rate, Max
±25V
3kΩ ≤ RL ≤ 7kΩ, CL ≤ 2500pF
Driver Output Short-Circuit Current, Max
Transition Rate on Driver Output
Driver Output Resistance
www.analog.com
30V/μs
100mA
V.28
1ms or 3% of the period
EIA/TIA-232E
4% of the period
-2V < VOUT < +2V
300Ω
Analog Devices │ 13
MAX202E–MAX213E,
MAX232E/MAX241E
±15kV ESD-Protected,
5V RS-232 Transceivers
Table 3. DB9 Cable Connections
Commonly Used for EIA/TIA-232E and
V.24 Asynchronous Interfaces
PIN
EIA/TIA-232E, V.28 SPECIFICATIONS
1
Received Line Signal
Detector (sometimes
Handshake from DCE
called Carrier Detect, DCD)
2
Receive Data (RD)
Data from DCE
3
Transmit Data (TD)
Data from DTE
4
Data Terminal Ready
Handshake from DTE
5
Signal Ground
Reference point for Signals
6
Data Set Ready (DSR)
Handshake from DCE
7
Request to Send (RTS)
Handshake from DTE
8
Clear to Send (CTS)
Handshake from DCE
9
Ring Indicator
Handshake from DCE
Pin Configurations and Typical Operating Circuits (continued)
+5V INPUT
0.1µF
16
TOP VIEW
0.1µF*
6.3V
C1+ 1
16 VCC
V+ 2
15 GND
C1-
14 T1OUT
3
C2+ 4
0.1µF*
16V
MAX202E
MAX232E
13 R1IN
12 R1OUT
C2-
5
V-
6
11 T1IN
T2OUT 7
10 T2IN
R2IN 8
9
3
4
5
11
TTL/CMOS
INPUTS
R2OUT
DIP/SO/TSSOP
1
TTL/CMOS
OUTPUTS
0.1µF*
6.3V
VCC
V+
+5V TO +10V
VOLTAGE
DOUBLER
C1VC2+
+10V TO -10V
C2- VOLTAGE INVERTER
C1+
T1IN
10
T2IN
12
R1OUT
2
+10V
6
-10V
T1OUT 14
T1
T2OUT
T2
R1
7
R2OUT
R2
RS-232
OUTPUTS
R1IN 13
5kΩ
9
0.1µF*
16V
R2IN
8
RS-232
INPUTS
5kΩ
PIN NUMBERS ON TYPICAL OPERATING CIRCUIT REFER TO DIP/SO/TSSOP PACKAGE, NOT LCC.
* 1.0µF CAPACITORS, MAX232E ONLY.
www.analog.com
GND
15
Analog Devices │ 14
MAX202E–MAX213E,
MAX232E/MAX241E
±15kV ESD-Protected,
5V RS-232 Transceivers
Pin Configurations and Typical Operating Circuits (continued)
+5V INPUT
0.1µF
TOP VIEW
T2IN 1
20 R2OUT
T1IN 2
19 R2IN
R1OUT 3
18 T2OUT
R1IN 4
T1OUT 5
GND
14 V+ (C1-)
TTL/CMOS
OUTPUTS
400kΩ
T1IN
1
T2IN
3
R1OUT
T1OUT
T1
+5V
TTL/CMOS
INPUTS
16 C215 C2+
6
400kΩ
T2OUT
T2
R1IN
R1
12 V- (C2+)
11 C2+ (C2-)
C2- (V-) 10
DIP/SO
PIN NUMBERS IN () ARE FOR SO PACKAGE.
5
RS-232
OUTPUTS
18
4
5kΩ
20
R2OUT
R2IN
R2
13 C1- (C1+)
8
GND 9
www.analog.com
2
17 V-
MAX203E
VCC 7
C1+ (V+)
7
VCC
+5V
RS-232
INPUTS
19
5kΩ
DO NOT MAKE 8(13)
C1+
CONNECTION TO
THESE PINS 13(14)
C112(10)
VINTERNAL -10V
17
POWER SUPPLY
VINTERNAL +10V 14(8)
POWER SUPPLY
V+
C2+
C2+
C2C2GND
6
11 (12)
15
16
10 (11)
GND
9
Analog Devices │ 15
MAX202E–MAX213E,
MAX232E/MAX241E
±15kV ESD-Protected,
5V RS-232 Transceivers
Pin Configurations and Typical Operating Circuits (continued)
+5V INPUT
0.1µF
12
VCC
+5V
400kΩ
8 T1IN
T1
T1OUT 3
+5V
400kΩ
TOP VIEW
7 T2IN
T2
T2OUT 4
+5V
400kΩ
T4OUT
1
24 R3IN
T3OUT
2
23 R3OUT
T1OUT
3
22 T5IN
T2OUT
4
21 SHDN
R2IN
5
20 EN
R2OUT
6
T2IN
7
MAX205E
TTL/CMOS
INPUTS
8
17 R4OUT
9
16 T4IN
R1IN
10
15 T3IN
GND 11
14 R5OUT
V CC 12
13 R5IN
T3OUT 2
RS-232
OUTPUTS
400kΩ
T4
T4OUT 1
+5V
400kΩ
22 T5IN
18 R4IN
T1IN
T3
+5V
16 T4IN
19 T5OUT
R1OUT
15 T3IN
9 R1OUT
T5
R1
T5OUT 19
R1IN 10
5kΩ
6 R2OUT
R2
R2IN 5
5kΩ
DIP
TTL/CMOS
OUTPUTS
23 R3OUT
R3
R3IN 24
RS-232
INPUTS
5kΩ
17 R4OUT
R4
R4IN 18
5kΩ
14 R5OUT
R5
R5IN 13
5kΩ
20 EN
GND
11
www.analog.com
SHDN
21
Analog Devices │ 16
MAX202E–MAX213E,
MAX232E/MAX241E
±15kV ESD-Protected,
5V RS-232 Transceivers
Pin Configurations and Typical Operating Circuits (continued)
+5V INPUT
0.1µF
6.3V
0.1µF
10
TOP VIEW
T3OUT
1
24 T4OUT
T1OUT
2
23 R2IN
T2OUT
3
22 R2OUT
R1IN
4
21 SHDN
R1OUT
5
20 EN
T2IN
6
19 T4IN
T1IN
7
GND
8
17 R3OUT
VCC
9
16 R3IN
C1+
10
15 V-
V+
11
14 C2-
C1-
12
13 C2+
MAX206E
DIP/SO/SSOP
9
VCC
C1+
0.1µF
6.3V
12 C113 C2+
0.1µF
16V
14 C2-
V+
11
+5V TO +10V
VOLTAGE DOUBLER
+10V TO -10V
VOLTAGE INVERTER
V-
15
0.1µF
16V
+5V
400kΩ
7 T1IN
T1
T1OUT 2
+5V
400kΩ
6 T2IN
TTL/CMOS
INPUTS
18 T3IN
T2
T2OUT 3
+5V
RS-232
OUTPUTS
400kΩ
18 T3IN
T3
T3OUT 1
+5V
400kΩ
19 T4IN
5 R1OUT
T4
R1
T4OUT 24
R1IN 4
5kΩ
TTL/CMOS
OUTPUTS
22 R2OUT
R2
R2IN 23
RS-232
INPUTS
5kΩ
17 R3OUT
R3
R3IN 16
5kΩ
20 EN
GND
8
www.analog.com
SHDN
21
Analog Devices │ 17
MAX202E–MAX213E,
MAX232E/MAX241E
±15kV ESD-Protected,
5V RS-232 Transceivers
Pin Configurations and Typical Operating Circuits (continued)
+5V INPUT
0.1µF
6.3V
0.1µF
10
9
VCC
C1+
0.1µF
6.3V
12 C113
C2+
0.1µF
16V
14 C2-
V+
11
+5V TO +10V
VOLTAGE DOUBLER
+10V TO -10V
VOLTAGE INVERTER
V-
15
0.1µF
16V
+5V
400kΩ
7 T1IN
TOP VIEW
T1
T1OUT 2
+5V
400kΩ
T3OUT
1
24 T4OUT
T1OUT
2
23 R2IN
T2OUT
3
22 R2OUT
R1IN
4
21 T5IN
R1OUT
5
20 T5OUT
T2IN
6
19 T4IN
T1IN
7
GND
8
17 R3OUT
VCC
9
16 R3IN
C1+
10
15 V-
V+
11
14 C2-
C1-
12
13 C2+
MAX207E
DIP/SO/SSOP
6 T2IN
T2
T2OUT 3
+5V
400kΩ
TTL/CMOS
INPUTS
18 T3IN
T3
T3OUT 1
+5V
RS-232
OUTPUTS
400kΩ
19 T4IN
18 T3IN
T4
T4OUT 24
+5V
400kΩ
21 T5IN
5 R1OUT
T5
R1
T5OUT 20
R1IN 4
5kΩ
TTL/CMOS
OUTPUTS
22 R2OUT
R2
R2IN 23
RS-232
INPUTS
5kΩ
17 R3OUT
R3
R3IN 16
5kΩ
GND
8
www.analog.com
Analog Devices │ 18
MAX202E–MAX213E,
MAX232E/MAX241E
±15kV ESD-Protected,
5V RS-232 Transceivers
Pin Configurations and Typical Operating Circuits (continued)
+5V INPUT
0.1µF
6.3V
0.1µF
10
9
VCC
C1+
0.1µF
6.3V
12 C113
C2+
0.1µF
16V
14 C2-
V+
11
+5V TO +10V
VOLTAGE DOUBLER
+10V TO -10V
VOLTAGE INVERTER
V-
15
0.1µF
16V
+5V
400kΩ
TOP VIEW
5 T1IN
T2OUT
1
24 T3OUT
T1OUT
2
23 R3IN
R2IN
3
22 R3OUT
R2OUT
4
21 T4IN
T1IN
5
20 T4OUT
R1OUT
6
19 T3IN
R1IN
7
GND
8
17 R4OUT
MAX208E
18 T2IN
TTL/CMOS
INPUTS
VCC
9
16 R4IN
10
15 V-
V+
11
14 C2-
C1-
12
13 C2+
T1OUT 2
400kΩ
T2
T2OUT 1
+5V
RS-232
OUTPUTS
400kΩ
19 T3IN
T3
T3OUT 24
+5V
18 T2IN
C1+
DIP/SO/SSOP
+5V
T1
400kΩ
21 T4IN
6 R1OUT
T4
R1
T4OUT 20
R1IN 7
5kΩ
4 R2OUT
R2
R2IN 3
5kΩ
TTL/CMOS
OUTPUTS
22 R3OUT
R3
RS-232
INPUTS
R3IN 23
5kΩ
17 R4OUT
R4
R4IN 16
5kΩ
GND
8
www.analog.com
Analog Devices │ 19
MAX202E–MAX213E,
MAX232E/MAX241E
±15kV ESD-Protected,
5V RS-232 Transceivers
Pin Configurations and Typical Operating Circuits (continued)
+5V INPUT
0.1µF
12
0.1µF*
6.3V
0.1µF*
16V
0.1µF*
6.3V
11
VCC
C1+
V+
13
+5V TO +10V
VOLTAGE DOUBLER
14 C115
C2+
+10V TO -10V
VOLTAGE INVERTER
16 C2-
V-
17
0.1µF*
16V
+5V
400kΩ
7 T1IN
TOP VIEW
+5V
T3OUT
1
28 T4OUT
T1OUT
2
27 R3IN
T2OUT
3
26 R3OUT
R2IN
4
25 SHDN (SHDN)
R2OUT
5
24 EN (EN)
T2IN
6
T1IN
7
R1OUT
8
R1IN
9
MAX211E
MAX213E
MAX241E
6 T2IN
TTL/CMOS
INPUTS
+5V
20 T3IN
21 T4IN
8 R1OUT
20 T3IN
VCC
11
18 R5IN
C1+
12
17 V-
V+
13
16 C2-
C1-
14
15 C2+
SO/SSOP
400kΩ
T2
T2OUT 3
RS-232
OUTPUTS
400kΩ
T3
T3OUT 1
400kΩ
21 T4IN
22 R4OUT
19 R5OUT
T1OUT 2
+5V
23 R4IN
GND 10
T1
T4
R1
T4OUT 28
R1IN 9
5kΩ
5 R2OUT
R2
R2IN 4
5kΩ
TTL/CMOS
OUTPUTS
26 R3OUT
R3
R3IN 27
RS-232
INPUTS
5kΩ
22 R4OUT
R4
R4IN 23
5kΩ
( ) ARE FOR MAX213E ONLY
* 1.0µF CAPACITORS, MAX241E ONLY
19 R5OUT
R5
R5IN 18
5kΩ
24 EN (EN)
www.analog.com
SHDN (SHDN)
GND
10
25
Analog Devices │ 20
MAX202E–MAX213E,
MAX232E/MAX241E
±15kV ESD-Protected,
5V RS-232 Transceivers
Ordering Information (continued)
PART
TEMP RANGE
PIN-PACKAGE
PART
TEMP RANGE
PIN-PACKAGE
MAX202ECUE
0°C to +70°C
16 TSSOP
MAX208ECNG
0°C to +70°C
24 Narrow Plastic DIP
MAX202ECWE
0°C to +70°C
16 Wide SO
MAX208ECWG
0°C to +70°C
24 SO
MAX202EC/D
0°C to +70°C
Dice*
MAX208ECAG
0°C to +70°C
24 SSOP
MAX202EEPE
-40°C to +85°C
16 Plastic DIP
MAX208EENG
-40°C to +85°C
24 Narrow Plastic DIP
MAX202EESE
-40°C to +85°C
16 Narrow SO
MAX208EEWG
-40°C to +85°C
24 SO
MAX202EEUE
-40°C to +85°C
16 TSSOP
MAX208EEAG
-40°C to +85°C
24 SSOP
MAX202EEWE
-40°C to +85°C
16 Wide SO
MAX211ECWI
0°C to +70°C
28 SO
MAX203ECPP
0°C to +70°C
20 Plastic DIP
MAX211ECAI
0°C to +70°C
28 SSOP
MAX203ECWP
0°C to +70°C
20 SO
MAX211EEWI
-40°C to +85°C
28 SO
MAX203EEPP
-40°C to +85°C
20 Plastic DIP
MAX211EEAI
-40°C to +85°C
28 SSOP
MAX203EEWP
-40°C to +85°C
20 SO
MAX213ECWI
0°C to +70°C
28 SO
MAX205ECPG
0°C to +70°C
24 Wide Plastic DIP
MAX213ECAI
0°C to +70°C
28 SSOP
MAX205EEPG
-40°C to +85°C
24 Wide Plastic DIP
MAX213EEWI
-40°C to +85°C
28 SO
MAX206ECNG
0°C to +70°C
24 Narrow Plastic DIP
MAX213EEAI
-40°C to +85°C
28 SSOP
MAX206ECWG
0°C to +70°C
24 SO
MAX232ECPE
0°C to +70°C
16 Plastic DIP
MAX206ECAG
0°C to +70°C
24 SSOP
MAX232ECSE
0°C to +70°C
16 Narrow SO
MAX206EENG
-40°C to +85°C
24 Narrow Plastic DIP
MAX232ECWE
0°C to +70°C
16 Wide SO
MAX206EEWG
-40°C to +85°C
24 SO
MAX232EC/D
0°C to +70°C
Dice*
MAX206EEAG
-40°C to +85°C
24 SSOP
MAX232EEPE
-40°C to +85°C
16 Plastic DIP
MAX207ECNG
0°C to +70°C
24 Narrow Plastic DIP
MAX232EESE
-40°C to +85°C
16 Narrow SO
MAX207ECWG
0°C to +70°C
24 SO
MAX232EEWE
-40°C to +85°C
16 Wide SO
MAX207ECAG
0°C to +70°C
24 SSOP
MAX241ECWI
0°C to +70°C
28 SO
MAX207EENG
-40°C to +85°C
24 Narrow Plastic DIP
MAX241ECAI
0°C to +70°C
28 SSOP
MAX207EEWG
-40°C to +85°C
24 SO
MAX241EEWI
-40°C to +85°C
28 SO
MAX207EEAG
-40°C to +85°C
24 SSOP
MAX241EEAI
-40°C to +85°C
28 SSOP
*Dice are specified at TA = +25°C.
www.analog.com
Analog Devices │ 21
MAX202E–MAX213E,
MAX232E/MAX241E
±15kV ESD-Protected,
5V RS-232 Transceivers
Package Information
For the latest package outline information and land patterns (footprints), go to www.maximintegrated.com/packages. Note that a “+”,
“#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing
pertains to the package regardless of RoHS status.
www.analog.com
Analog Devices │ 22
MAX202E–MAX213E,
MAX232E/MAX241E
±15kV ESD-Protected,
5V RS-232 Transceivers
Package Information (continued)
For the latest package outline information and land patterns (footprints), go to www.maximintegrated.com/packages. Note that a “+”,
“#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing
pertains to the package regardless of RoHS status.
www.analog.com
Analog Devices │ 23
MAX202E–MAX213E,
MAX232E/MAX241E
±15kV ESD-Protected,
5V RS-232 Transceivers
Package Information (continued)
For the latest package outline information and land patterns (footprints), go to www.maximintegrated.com/packages. Note that a “+”,
“#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing
pertains to the package regardless of RoHS status.
www.analog.com
Analog Devices │ 24
MAX202E–MAX213E,
MAX232E/MAX241E
±15kV ESD-Protected,
5V RS-232 Transceivers
Package Information (continued)
For the latest package outline information and land patterns (footprints), go to www.maximintegrated.com/packages. Note that a “+”,
“#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing
pertains to the package regardless of RoHS status.
α
maxim
integrated
www.analog.com
TM
Analog Devices │ 25
MAX202E–MAX213E,
MAX232E/MAX241E
±15kV ESD-Protected,
5V RS-232 Transceivers
Revision History
REVISION
NUMBER
REVISION
DATE
8
1/21
DESCRIPTION
Updated Package information
PAGES
CHANGED
25
Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is
assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that
may result from its use.Specifications subject to change without notice. No license is granted by implicationor
otherwise under any patent or patent rights of Analog Devices. Trademarks andregistered trademarks are the
property of their respective owners.
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Analog Devices │ 26
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