MAXIM MAX202ECPE

19-0175; Rev 5; 10/03
±15kV ESD-Protected, +5V RS-232 Transceivers
Next-Generation Device Features
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.
♦ 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
________________________Applications
Ordering Information, Pin Configurations, and Typical
Operating Circuits appear at end of data sheet.
Notebook, Subnotebook, and Palmtop Computers
Battery-Powered Equipment
Hand-Held Equipment
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
________________________________________________________________ Maxim Integrated Products
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.
1
MAX202E–MAX213E, MAX232E/MAX241E
General Description
MAX202E–MAX213E, MAX232E/MAX241E
±15kV ESD-Protected, +5V RS-232 Transceivers
ABSOLUTE MAXIMUM RATINGS
VCC..........................................................................-0.3V to +6V
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
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
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
UNITS
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
200
µA
DC CHARACTERISTICS
VCC Supply Current
ICC
Shutdown Supply Current
No load, TA = +25°C
TA = +25°C, Figure 1
mA
µA
LOGIC
Input Pull-Up Current
T_IN = 0V (MAX205E–208E/211E/213E/241E)
Input Leakage Current
T_IN = 0V to VCC (MAX202E/203E/232E)
±10
µA
Input Threshold Low
VIL
T_IN; EN, SHDN (MAX213E) or
EN, SHDN (MAX205E–208E/211E/241E)
0.8
V
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
2
T_IN
2.0
EN, SHDN (MAX213E) or EN, SHDN
(MAX205E–208E/211E/241E)
2.4
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
±15kV ESD-Protected, +5V RS-232 Transceivers
(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
-30
0.8
1.2
0.6
1.5
MAX
UNITS
30
V
EIA/TIA-232E RECEIVER INPUTS
Input Voltage Range
All parts, normal operation
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
MAX213E, SHDN = 0V,
EN = VCC
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
120
All parts, normal operation
Receiver Propagation Delay
tPLHR,
tPHLR
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
Human Body Model
ESD-Protection Voltage
±15
IEC1000-4-2, Contact Discharge
±8
IEC1000-4-2,
Air-Gap
Discharge
±5%.
Note 1: MAX211EE_ _ and MAX213EE_ _ tested
with VCC = +5V
±15
kV
Note 1: MAX211EE_ _ tested with VCC = +5V ±5%.
_______________________________________________________________________________________
3
MAX202E–MAX213E, MAX232E/MAX241E
ELECTRICAL CHARACTERISTICS (continued)
__________________________________________Typical Operating Characteristics
(Typical Operating Circuits, VCC = +5V, TA = +25°C, unless otherwise noted.)
MAX202E/MAX203E
TRANSMITTER OUTPUT VOLTAGE
vs. LOAD CAPACITANCE
VCC = 5.0V
6.0
7.5
7.0
VCC = 5.5V
6.5
VCC = 5.0V
6.0
5.5
5.5
VCC = 5.0V
6.0
3000
4000
5.0
0
5000
1000
2000
3000
4000
5000
30
7.0
VCC = 5.5V
6.0
ALL TRANSMITTERS LOADED
DATA RATE = 120kbps
RL = 3kΩ
25
SLEW RATE ( V/µs)
ALL TRANSMITTERS LOADED
DATA RATE = 120kbps
RL = 3kΩ
2000
3000
MAX211E/MAX213E/MAX241E
TRANSMITTER SLEW RATE
vs. LOAD CAPACITANCE
MAX202E-TOC4
8.0
6.5
1000
20
15
10
-SLEW RATE
5
5.5
+SLEW RATE
VCC = 4.5V
5.0
0
1000
VCC = 5.0V
2000
3000
4000
LOAD CAPACITANCE (pF)
4
0
5000
4000
LOAD CAPACITANCE (pF)
MAX211E/MAX213E
TRANSMITTER OUTPUT VOLTAGE
vs. LOAD CAPACITANCE
7.5
0
LOAD CAPACITANCE (pF)
LOAD CAPACITANCE (pF)
VOH, -VOL (V)
6.5
VCC = 4.5V
5.0
2000
VCC = 5.5V
VCC = 4.5V
5.0
1000
7.0
5.5
VCC = 4.5V
0
ALL TRANSMITTERS LOADED
DATA RATE = 120kbps
RL = 3kΩ
MAX202E-TOC5
VOH, -VOL (V)
VCC = 5.5V
8.0
MAX202E-TOC3
7.5
7.0
6.5
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
MAX241E
TRANSMITTER OUTPUT VOLTAGE
vs. LOAD CAPACITANCE
MAX202E-TOC2
MAX232E
TRANSMITTER OUTPUT VOLTAGE
vs. LOAD CAPACITANCE
VOH, -VOL (V)
MAX202E–MAX213E, MAX232E/MAX241E
±15kV ESD-Protected, +5V RS-232 Transceivers
0
1000
2000
3000
4000
LOAD CAPACITANCE (pF)
______________________________________________________________________________________
5000
5000
±15kV ESD-Protected, +5V RS-232 Transceivers
-SLEW RATE
6
2.5
VCC = +4.5V, RL = 3kΩ
1 TRANSMITTER AT FULL DATA RATE
4 TRANSMITTERS AT 1/8 DATA RATE
0
-2.5
1000
2000
3000
4000
5000
0
1000
2000
3000
4000
45
40
120kbps
35
20kbps
30
VCC = +4.5V, RL = 3kΩ
1 TRANSMITTER AT FULL DATA RATE
4 TRANSMITTERS AT 1/8 DATA RATE
2000
3000
4000
3000
4000
MAX202E TOC-08
5000
V+
7.5
VOUT+
5.0
2.5
VCC = +4.5V, RL = 3kΩ
1 TRANSMITTER AT FULL DATA RATE
4 TRANSMITTERS AT 1/8 DATA RATE
0
-2.5
-5.0
VOUT-
-7.5
V-
-10.0
20
LOAD CAPACITANCE (pF)
2000
LOAD CAPACITANCE (pF)
10.0
OUTPUT VOLTAGE (V)
240kbps
1000
MAX205E–MAX208E
OUTPUT VOLTAGE vs. DATA RATE
MAX202E TOC-09
50
1000
6
0
5000
MAX205E–MAX208E
SUPPLY CURRENT
vs. LOAD CAPACITANCE
0
8
LOAD CAPACITANCE (pF)
LOAD CAPACITANCE (pF)
25
RISE
FALL
0
-7.5
0
12
10
2
20kbps
2
14
4
120kbps
-5.0
VCC = +4.5V, RL = 3kΩ
1 TRANSMITTER AT FULL DATA RATE
4 TRANSMITTERS AT 1/8 DATA RATE
16
240kbps
240kbps
+SLEW RATE
4
120kbps
MAX202E TOC-07
5.0
20
18
MAX202E TOC-10
8
20kbps
SLEW RATE (V/µs)
10
SUPPLY CURRENT (mA)
SLEW RATE ( V/µs)
7.5
OUTPUT VOLTAGE (V)
ALL TRANSMITTERS LOADED
DATA RATE = 120kbps
RL = 3kΩ
MAX202E-TOC6
14
12
MAX205E–MAX208E
TRANSMITTER SLEW RATE
vs. LOAD CAPACITANCE
MAX205E–MAX208E
TRANSMITTER OUTPUT VOLTAGE
vs. LOAD CAPACITANCE
MAX202E/MAX203E/MAX232E
TRANSMITTER SLEW RATE
vs. LOAD CAPACITANCE
5000
0
30
60
90 120 150 180 210 240
DATA RATE (kbps)
_______________________________________________________________________________________
5
MAX202E–MAX213E, MAX232E/MAX241E
____________________________Typical Operating Characteristics (continued)
(Typical Operating Circuits, VCC = +5V, TA = +25°C, unless otherwise noted.)
MAX202E–MAX213E, MAX232E/MAX241E
±15kV ESD-Protected, +5V RS-232 Transceivers
_____________________________________________________________Pin Descriptions
MAX202E/MAX232E
PIN
DIP/SO/TSSOP
1, 3
2
4, 5
6
7, 14
8, 13
9, 12
10, 11
15
16
__
LCC
2, 4
3
5, 7
8
9, 18
10, 17
12, 15
13, 14
19
20
1, 6, 11, 16
NAME
C1+, C1V+
C2+, C2VT_OUT
R_IN
R_OUT
T_IN
GND
VCC
N.C.
FUNCTION
Terminals for positive charge-pump capacitor
+2VCC voltage generated by the charge pump
Terminals for negative charge-pump capacitor
-2VCC voltage generated by the charge pump
RS-232 Driver Outputs
RS-232 Receiver Outputs
RS-232 Receiver Outputs
RS-232 Driver Inputs
Ground
+4.5V to +5.5V Supply-Voltage Input
No Connect—not internally connected.
MAX203E
PIN
DIP
1, 2
3, 20
4,19
5,18
6, 9
7
8
10, 16
12, 17
13
14
11, 15
SO
1, 2
3, 20
4, 19
5, 18
6, 9
7
13
11, 16
10, 17
14
8
12, 15
NAME
T_IN
R_OUT
R_IN
T_OUT
GND
VCC
C1+
C2VC1V+
C2+
FUNCTION
RS-232 Driver Inputs
RS-232 Receiver Outputs
RS-232 Receiver Inputs
RS-232 Transmitter Outputs
Ground
+4.5V to +5.5V Supply-Voltage Input
Make no connection to this pin.
Connect pins together.
-2VCC voltage generated by the charge pump. Connect pins together.
Make no connection to this pin.
+2VCC voltage generated by the charge pump
Connect pins together.
MAX205E
PIN
1–4, 19
5, 10, 13, 18, 24
6, 9, 14, 17, 23
NAME
T_OUT
R_IN
R_OUT
7, 8, 15, 16, 22
11
12
T_IN
GND
VCC
TTL/CMOS Driver Inputs. Internal pull-ups to VCC.
Ground
+4.75V to +5.25V Supply Voltage
20
EN
SHDN
Receiver Enable—active low
21
6
FUNCTION
RS-232 Driver Outputs
RS-232 Receiver Inputs
TTL/CMOS Receiver Outputs. All receivers are inactive in shutdown.
Shutdown Control—active high
_______________________________________________________________________________________
±15kV ESD-Protected, +5V RS-232 Transceivers
MAX206E
PIN
1, 2, 3, 24
4, 16, 23
5, 17, 22
NAME
T_OUT
R_IN
R_OUT
6, 7, 18, 19
8
9
T_IN
GND
VCC
TTL/CMOS Driver Inputs. Internal pull-ups to VCC.
Ground
+4.5V to +5.5V Supply Voltage
10, 12
C1+, C1-
Terminals for positive charge-pump capacitor
11
13, 14
V+
C2+, C2-
+2VCC generated by the charge pump
Terminals for negative charge-pump capacitor
15
V-
20
EN
SHDN
21
FUNCTION
RS-232 Driver Outputs
RS-232 Receiver Inputs
TTL/CMOS Receiver Outputs. All receivers are inactive in shutdown.
-2VCC generated by the charge pump
Receiver Enable—active low
Shutdown Control—active high
MAX207E
PIN
1, 2, 3, 20, 24
4, 16, 23
5, 17, 22
NAME
T_OUT
R_IN
R_OUT
FUNCTION
RS-232 Driver Outputs
RS-232 Receiver Inputs
TTL/CMOS Receiver Outputs. All receivers are inactive in shutdown.
6, 7, 18, 19, 21
8
9
T_IN
GND
VCC
TTL/CMOS Driver Inputs. Internal pull-ups to VCC.
Ground
+4.75V to +5.25V Supply Voltage
10, 12
C1+, C1-
Terminals for positive charge-pump capacitor
11
13, 14
V+
C2+, C2-
+2VCC generated by the charge pump
Terminals for negative charge-pump capacitor
15
V-
-2VCC generated by the charge pump
MAX208E
PIN
1, 2, 20, 24
3, 7, 16, 23
4, 6, 17, 22
NAME
T_OUT
R_IN
R_OUT
FUNCTION
RS-232 Driver Outputs
RS-232 Receiver Inputs
TTL/CMOS Receiver Outputs. All receivers are inactive in shutdown.
5, 18, 19, 21
8
9
T_IN
GND
VCC
TTL/CMOS Driver Inputs. Internal pull-ups to VCC.
Ground
+4.5V to +5.5V Supply Voltage
10, 12
C1+, C1-
Terminals for positive charge-pump capacitor
11
13, 14
V+
C2+, C2-
+2VCC generated by the charge pump
Terminals for negative charge-pump capacitor
15
V-
-2VCC generated by the charge pump
_______________________________________________________________________________________
7
MAX202E–MAX213E, MAX232E/MAX241E
________________________________________________Pin Descriptions (continued)
MAX202E–MAX213E, MAX232E/MAX241E
±15kV ESD-Protected, +5V RS-232 Transceivers
________________________________________________Pin Descriptions (continued)
MAX211E/MAX213E/MAX241E
PIN
1, 2, 3, 28
4, 9, 18, 23, 27
NAME
T_OUT
R_IN
5, 8, 19, 22, 26
R_OUT
6, 7, 20, 21
10
11
12, 14
13
15, 16
17
T_IN
GND
VCC
C1+, C1V+
C2+, C2V-
24
25
FUNCTION
RS-232 Driver Outputs
RS-232 Receiver Inputs
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.
TTL/CMOS Driver Inputs. Only the MAX211E, MAX213E, and MAX241E have internal pull-ups to VCC.
Ground
+4.5V to +5.5V Supply Voltage
Terminals for positive charge-pump capacitor
+2VCC voltage generated by the charge pump
Terminals for negative charge-pump capacitor
-2VCC voltage generated by the charge pump
EN
Receiver Enable—active low (MAX211E, MAX241E)
EN
Receiver Enable—active high (MAX213E)
SHDN
Shutdown Control—active high (MAX211E, MAX241E)
SHDN
Shutdown Control—active low (MAX213E)
ISHDN
+5.5V
0.1µF*
EN
INPUT
0.1µF*
+3V
0V
VCC
C1+
0.1µF*
0.1µF*
OUTPUT ENABLE TIME
C1-
0.1µF*
MAX206E
C2-
+5.5V (0V)
RECEIVER
OUTPUT
CL = 150pF
MAX213E
MAX241E
T_IN
R_OUT
0V OR +5.5V
DRIVE
+3.5V
V-
MAX211E
C2+ V
CC
400k
+5.5V
V+
T1 TO T5
T_OUT
R1 TO R5
EN (EN)
+3V
3k
R_IN
+5.5V
5k
SHDN (SHDN)
( ) ARE FOR MAX213E
EN
INPUT
RECEIVER
OUTPUTS
0V
OUTPUT DISABLE TIME
VOH
VOL
VOH - 0.1V
RL = 1kΩ
+2.5V
CAPACITORS MAY BE
POLARIZED OR UNPOLARIZED
Figure 1. Shutdown-Current Test Circuit (MAX206E,
MAX211E/MAX213E/MAX241E)
8
NOTE:
POLARITY OF EN
IS REVERSED
FOR THE
MAX213E
VOL + 0.1V
GND
* 1µF FOR MAX241E
+0.8V
Figure 2. Receiver Output Enable and Disable Timing
(MAX205E/MAX206E/MAX211E/MAX213E/MAX241E)
_______________________________________________________________________________________
±15kV ESD-Protected, +5V RS-232 Transceivers
0.1µF*
+5V
0.1µF*
0.1µF*
VCC
C1+
0.1µF*
C2-
0.1µF*
400k
T_
T_IN
0V (+5V)
0V (+5V)
EN (EN)
V-
R_IN
0.1µF*
C2+ V
CC
C2-
400k
T_
T_OUT
R_
R_OUT
MAX2_ _E
C1-
V-
C2+ V
CC
0.1µF*
V+
0.1µF*
0.1µF*
MAX2_ _E
VCC
C1+
V+
C1-
0.1µF*
T_IN
3k
2500pF
5k
R_
R_OUT
0V (+5V)
0V (+5V)
SHDN (SHDN)
MINIMUM SLEW-RATE TEST CIRCUIT
EN (EN)
T_OUT
7k
R_IN
50pF
5k
SHDN (SHDN)
MAXIMUM SLEW-RATE TEST CIRCUIT
( ) ARE FOR MAX213E
* 1µF FOR MAX232E/MAX241E
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 contactdischarges 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
charge-pump voltage converters (Figure 4). The first
charge-pump converter uses capacitor C1 to double
the +5V into +10V, storing the +10V on the output filter
capacitor, C3. 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 V CC , 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 on-chip. 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.
_______________________________________________________________________________________
9
MAX202E–MAX213E, MAX232E/MAX241E
+5V
MAX202E–MAX213E, MAX232E/MAX241E
±15kV ESD-Protected, +5V RS-232 Transceivers
V+
S1
S2
C1+
VCC
C1
S3
S5
C3
IL +
S4
GND
C1-
C2+ S6
C2
RL +
C4
S7
VCC
GND
IL-
S8
VC2-
PART
fCLK
RL-
MAX202E
MAX203E
MAX205E–208E
MAX211E/213E
MAX232E
MAX241E
fCLK
(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 and
12V. Below -0.5V in shutdown, the transmitter output is
diode-clamped 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/fall-time signals with moderate amounts of noise
and ringing.
In shutdown, the MAX213E’s R4 and R5 receivers have
no hysteresis.
10
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-inshutdown 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 high
for the MAX205E/MAX206E/MAX211E/MAX241E
(SHDN), but is active low for the MAX213E (SHDN).
______________________________________________________________________________________
±15kV ESD-Protected, +5V RS-232 Transceivers
MAX211E
3V
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).
10V
±15kV ESD Protection
-10V
As with all Maxim devices, ESD-protection structures
are incorporated on all pins to protect against
electrostatic 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:
SHDN
0V
V+
5V
0V
V-
-5V
200µs/div
Figure 5. MAX211E V+ and V- when Exiting Shutdown (0.1µF
capacitors)
Table 1a. MAX205E/MAX206E/MAX211E/
MAX241E Control Pin Configurations
SHDN EN
OPERATION
STATUS
Tx
Rx
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
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.
X = Don't Care
Table 1b. MAX213E Control Pin
Configurations
SHDN
EN
OPERATION
STATUS
Rx
Tx 1–4
1–3
4, 5
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
______________________________________________________________________________________
11
MAX202E–MAX213E, MAX232E/MAX241E
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.
RC 1M
CHARGE-CURRENT
LIMIT RESISTOR
RD 1500Ω
IP 100%
90%
DISCHARGE
RESISTANCE
Ir
PEAK-TO-PEAK RINGING
(NOT DRAWN TO SCALE)
AMPERES
HIGHVOLTAGE
DC
SOURCE
Cs
100pF
STORAGE
CAPACITOR
DEVICE
UNDER
TEST
36.8%
10%
0
0
tDL
CURRENT WAVEFORM
Figure 6b. Human Body Model Current Waveform
Figure 6a. Human Body ESD Test Model
RC 50M to 100M
TIME
tRL
I
RD 330Ω
100%
CHARGE CURRENT
LIMIT RESISTOR
HIGHVOLTAGE
DC
SOURCE
Cs
150pF
DISCHARGE
RESISTANCE
STORAGE
CAPACITOR
90%
DEVICE
UNDER
TEST
I PEAK
MAX202E–MAX213E, MAX232E/MAX241E
±15kV ESD-Protected, +5V RS-232 Transceivers
10%
Figure 7a. IEC1000-4-2 ESD Test Model
t r = 0.7ns to 1ns
t
30ns
60ns
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 IEC1000-4-2, 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.
12
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.
______________________________________________________________________________________
±15kV ESD-Protected, +5V RS-232 Transceivers
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, aluminumelectrolytic, 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 V CC 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 chargepump capacitors (C1–C4).
V+ and V- as Power Supplies
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
EIA/TIA-232E, V.28
SPECIFICATIONS
CONDITIONS
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
0 Level
+3V to +15V
1 Level
-3V to -15V
Receiver Input Voltage
Receiver Input Level
Instantaneous Slew Rate, Max
±25V
3kΩ ≤ RL ≤ 7kΩ, CL ≤ 2500pF
Driver Output Short-Circuit Current, Max
30V/µs
100mA
V.28
1ms or 3% of the period
EIA/TIA-232E
4% of the period
-2V < VOUT < +2V
300Ω
Transition Rate on Driver Output
Driver Output Resistance
______________________________________________________________________________________
13
MAX202E–MAX213E, MAX232E/MAX241E
__________Applications Information
MAX202E–MAX213E, MAX232E/MAX241E
±15kV ESD-Protected, +5V RS-232 Transceivers
Table 3. DB9 Cable Connections
Commonly Used for EIA/TIAE-232E and
V.24 Asynchronous Interfaces
PIN
CONNECTION
1
Received Line Signal
Detector (sometimes
called Carrier Detect,
DCD)
Handshake from DCE
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
TOP VIEW
0.1µF*
6.3V
0.1µF
1
0.1µF*
6.3V
3
4
C1+ 1
16 VCC
V+ 2
15 GND
C1- 3
C2+ 4
C2- 5
0.1µF*
16V
5
C1+
16
VCC
V+
+5V TO +10V
C1- VOLTAGE DOUBLER
C2+
+10V TO -10V
C2- VOLTAGE INVERTER
6
+10V
-10V
0.1µF*
16V
14 T1OUT
MAX202E
MAX232E
11
13 R1IN
12 R1OUT
V- 6
11 T1IN
T2OUT 7
10 T2IN
R2IN 8
9
T1IN
T1OUT 14
T1
RS-232
OUTPUTS
TTL/CMOS
INPUTS
R2OUT
DIP/SO/TSSOP
10
T2IN
12
R1OUT
9
R2OUT
T2OUT
T2
TTL/CMOS
OUTPUTS
7
R1IN 13
R1
5k
R2IN
R2
5k
PIN NUMBERS ON TYPICAL OPERATING CIRCUIT REFER TO DIP/SO/TSSOP PACKAGE, NOT LCC.
* 1.0µF CAPACITORS, MAX232E ONLY.
14
V-
2
GND
15
______________________________________________________________________________________
8
RS-232
INPUTS
±15kV ESD-Protected, +5V RS-232 Transceivers
+5V INPUT
TOP VIEW
0.1µF
7
VCC
+5V
400k
T2IN 1
20 R2OUT
T1IN 2
19 R2IN
R1OUT 3
GND
T1IN
T1OUT
T1
5
+5V
TTL/CMOS
INPUTS
18 T2OUT
R1IN 4
T1OUT 5
2
RS-232
OUTPUTS
400k
1
T2IN
3
R1OUT
T2OUT
T2
18
17 V-
MAX203E
16 C215 C2+
6
VCC 7
20
R2OUT
R2IN
R2
13 C1- (C1+)
12 V- (C2+)
GND 9
11 C2+ (C2-)
C2- (V-) 10
DIP/SO
RS-232
INPUTS
19
5k
DO NOT MAKE
CONNECTION TO
THESE PINS
INTERNAL -10V
POWER SUPPLY
INTERNAL +10V
POWER SUPPLY
PIN NUMBERS IN ( ) ARE FOR SO PACKAGE.
4
5k
TTL/CMOS
OUTPUTS
14 V+ (C1-)
C1+ (V+) 8
R1IN
R1
8(13)
13(14)
12(10)
17
14(8)
C1+
C2+
C1-
C2+
V-
C2-
V-
C2-
V+
GND
6
11 (12)
15
16
10 (11)
GND
9
______________________________________________________________________________________
15
MAX202E–MAX213E, MAX232E/MAX241E
____________Pin Configurations and Typical Operating Circuits (continued)
MAX202E–MAX213E, MAX232E/MAX241E
±15kV ESD-Protected, +5V RS-232 Transceivers
____________Pin Configurations and Typical Operating Circuits (continued)
+5V INPUT
0.1µF
TOP VIEW
12
VCC
+5V
400k
8 T1IN
T1
T1OUT 3
+5V
400k
7 T2IN
T2
T2OUT 4
+5V
400k
T4OUT
1
24 R3IN
T3OUT
2
23 R3OUT
T1OUT
3
22 T5IN
T2OUT
4
21 SHDN
R2IN
5
20 EN
R2OUT
6
T2IN
7
18 R4IN
MAX205E
TTL/CMOS
INPUTS
15 T3IN
T1IN
8
17 R4OUT
9
16 T4IN
R1IN
10
15 T3IN
GND
11
14 R5OUT
VCC
12
13 R5IN
T3OUT 2
RS-232
OUTPUTS
+5V
400k
16 T4IN
T4
T4OUT 1
+5V
400k
19 T5OUT
R1OUT
T3
22 T5IN
9 R1OUT
T5
R1
T5OUT 19
R1IN 10
5k
6 R2OUT
R2
R2IN 5
5k
DIP
TTL/CMOS
OUTPUTS
23 R3OUT
R3
R3IN 24
5k
17 R4OUT
R4
R4IN 18
5k
14 R5OUT
R5
R5IN 13
5k
20 EN
SHDN
21
GND
11
16
______________________________________________________________________________________
RS-232
INPUTS
±15kV ESD-Protected, +5V RS-232 Transceivers
TOP VIEW
+5V INPUT
0.1µF
6.3V
0.1µF
10
0.1µF
6.3V
0.1µF
16V
9
VCC
C1+
V+
11
+5V TO +10V
VOLTAGE DOUBLER
12 C113 C2+
0.1µF
16V
+10V TO -10V
VOLTAGE INVERTER
14 C2-
V-
15
+5V
400k
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
18 T3IN
GND
8
17 R3OUT
VCC
9
16 R3IN
C1+
10
15 V-
V+
11
14 C2-
C1-
12
13 C2+
7 T1IN
T1
T1OUT 2
+5V
MAX206E
400k
6 T2IN
T2
T2OUT 3
+5V
TTL/CMOS
INPUTS
RS-232
OUTPUTS
400k
18 T3IN
T3
T3OUT 1
+5V
400k
19 T4IN
5 R1OUT
T4
R1
T4OUT 24
R1IN 4
5k
DIP/SO/SSOP
TTL/CMOS
OUTPUTS
22 R2OUT
R2
R2IN 23
RS-232
INPUTS
5k
17 R3OUT
R3
R3IN 16
5k
20 EN
SHDN
21
GND
8
______________________________________________________________________________________
17
MAX202E–MAX213E, MAX232E/MAX241E
____________Pin Configurations and Typical Operating Circuits (continued)
MAX202E–MAX213E, MAX232E/MAX241E
±15kV ESD-Protected, +5V RS-232 Transceivers
____________Pin Configurations and Typical Operating Circuits (continued)
+5V INPUT
TOP VIEW
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
0.1µF
16V
V-
+10V TO -10V
VOLTAGE INVERTER
15
+5V
400k
7 T1IN
T1
T1OUT 2
+5V
400k
T3OUT
1
24 T4OUT
T1OUT
2
23 R2IN
T2OUT
3
22 R2OUT
R1IN
4
21 T5IN
R1OUT
5
20 T5OUT
T2IN
6
MAX207E
6 T2IN
7
18 T3IN
GND
8
17 R3OUT
VCC
9
16 R3IN
C1+
10
15 V-
V+
11
14 C2-
C1-
12
13 C2+
T2OUT 3
+5V
400k
TTL/CMOS
INPUTS
18 T3IN
T3
T3OUT 1
+5V
RS-232
OUTPUTS
400k
19 T4IN
T1IN
T2
19 T4IN
T4
T4OUT 24
+5V
400k
DIP/SO/SSOP
21 T5IN
5 R1OUT
T5
R1
T5OUT 20
R1IN 4
5k
TTL/CMOS
OUTPUTS
22 R2OUT
R2
R2IN 23
5k
17 R3OUT
R3
R3IN 16
5k
GND
8
18
______________________________________________________________________________________
RS-232
INPUTS
±15kV ESD-Protected, +5V RS-232 Transceivers
TOP VIEW
+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
0.1µF
16V
+10V TO -10V
VOLTAGE INVERTER
V-
15
+5V
400k
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
18 T2IN
GND
8
17 R4OUT
MAX208E
VCC
9
16 R4IN
C1+
10
15 V-
V+
11
14 C2-
C1-
12
13 C2+
T1OUT 2
+5V
400k
18 T2IN
TTL/CMOS
INPUTS
T2
T2OUT 1
+5V
RS-232
OUTPUTS
400k
19 T3IN
T3
T3OUT 24
+5V
400k
21 T4IN
6 R1OUT
T4
R1
T4OUT 20
R1IN 7
5k
4 R2OUT
DIP/SO/SSOP
T1
R2
TTL/CMOS
OUTPUTS
R2IN 3
5k
22 R3OUT
R3
RS-232
INPUTS
R3IN 23
5k
17 R4OUT
R4
R4IN 16
5k
GND
8
______________________________________________________________________________________
19
MAX202E–MAX213E, MAX232E/MAX241E
____________Pin Configurations and Typical Operating Circuits (continued)
MAX202E–MAX213E, MAX232E/MAX241E
±15kV ESD-Protected, +5V RS-232 Transceivers
____________Pin Configurations and Typical Operating Circuits (continued)
+5V INPUT
0.1µF*
6.3V
TOP VIEW
0.1µF
12
0.1µF*
6.3V
0.1µF*
16V
11
VCC
C1+
V+
13
+5V TO +10V
VOLTAGE DOUBLER
14 C115
C2+
0.1µF*
16V
+10V TO -10V
VOLTAGE INVERTER
16 C2-
V-
17
+5V
400k
7 T1IN
T1OUT 2
T1
+5V
400k
T3OUT
1
28 T4OUT
T1OUT
2
27 R3IN
T2OUT
3
26 R3OUT
R2IN
4
25 SHDN (SHDN)
R2OUT
5
24 EN (EN)
T2IN
6
MAX211E
MAX213E
MAX241E
6 T2IN
TTL/CMOS
INPUTS
+5V
7
R1OUT
8
R1IN
9
20 T3IN
GND
10
19 R5OUT
RS-232
OUTPUTS
400k
20 T3IN
T3OUT 1
T3
+5V
400k
23 R4IN
T1IN
T2OUT 3
T2
21 T4IN
22 R4OUT
21 T4IN
8 R1OUT
T4OUT 28
T4
R1IN 9
R1
5k
VCC
11
18 R5IN
C1+
12
17 V-
V+
13
16 C2-
C1-
14
15 C2+
5 R2OUT
R2IN 4
R2
5k
TTL/CMOS
OUTPUTS
26 R3OUT
R3IN 27
R3
SO/SSOP
5k
22 R4OUT
R4IN 23
R4
5k
19 R5OUT
R5IN 18
R5
5k
( ) ARE FOR MAX213E ONLY
* 1.0µF CAPACITORS, MAX241E ONLY
24 EN (EN)
SHDN (SHDN)
25
GND
10
20
______________________________________________________________________________________
RS-232
INPUTS
±15kV ESD-Protected, +5V RS-232 Transceivers
PART
TEMP RANGE
PIN-PACKAGE
PART
TEMP RANGE
PIN-PACKAGE
MAX202ECPE
0°C to +70°C
16 Plastic DIP
MAX208ECNG
0°C to +70°C
24 Narrow Plastic DIP
MAX202ECSE
0°C to +70°C
16 Narrow SO
MAX208ECWG
0°C to +70°C
24 SO
0°C to +70°C
24 SSOP
MAX202ECUE
0°C to +70°C
16 TSSOP
MAX208ECAG
MAX202ECWE
0°C to +70°C
16 Wide SO
MAX208EENG
-40°C to +85°C
24 Narrow Plastic DIP
MAX202EC/D
0°C to +70°C
Dice*
MAX208EEWG
-40°C to +85°C
24 SO
MAX202EEPE
-40°C to +85°C
16 Plastic DIP
MAX208EEAG
-40°C to +85°C
24 SSOP
MAX202EESE
-40°C to +85°C
16 Narrow SO
MAX211ECWI
0°C to +70°C
28 SO
16 TSSOP
MAX211ECAI
0°C to +70°C
28 SSOP
16 Wide SO
MAX211EEWI
-40°C to +85°C
28 SO
-40°C to +85°C
28 SSOP
MAX202EEUE
-40°C to +85°C
MAX202EEWE
-40°C to +85°C
MAX203ECPP
0°C to +70°C
20 Plastic DIP
MAX211EEAI
MAX203ECWP
0°C to +70°C
20 SO
MAX213ECWI
0°C to +70°C
28 SO
20 Plastic DIP
MAX213ECAI
0°C to +70°C
28 SSOP
20 SO
MAX213EEWI
-40°C to +85°C
28 SO
-40°C to +85°C
28 SSOP
MAX203EEPP
MAX203EEWP
-40°C to +85°C
-40°C to +85°C
MAX205ECPG
0°C to +70°C
24 Wide Plastic DIP
MAX213EEAI
MAX205EEPG
-40°C to +85°C
24 Wide Plastic DIP
MAX232ECPE
0°C to +70°C
16 Plastic DIP
MAX206ECNG
0°C to +70°C
24 Narrow Plastic DIP
MAX232ECSE
0°C to +70°C
16 Narrow SO
MAX206ECWG
0°C to +70°C
24 SO
MAX232ECWE
0°C to +70°C
16 Wide SO
24 SSOP
MAX232EC/D
0°C to +70°C
-40°C to +85°C
16 Plastic DIP
MAX206ECAG
0°C to +70°C
Dice*
MAX206EENG
-40°C to +85°C
24 Narrow Plastic DIP
MAX232EEPE
MAX206EEWG
-40°C to +85°C
24 SO
MAX232EESE
-40°C to +85°C
16 Narrow SO
MAX206EEAG
-40°C to +85°C
24 SSOP
MAX232EEWE
-40°C to +85°C
16 Wide SO
MAX207ECNG
0°C to +70°C
24 Narrow Plastic DIP
MAX241ECWI
0°C to +70°C
28 SO
MAX207ECWG
0°C to +70°C
24 SO
MAX241ECAI
0°C to +70°C
28 SSOP
24 SSOP
MAX241EEWI
-40°C to +85°C
28 SO
MAX241EEAI
-40°C to +85°C
28 SSOP
MAX207ECAG
0°C to +70°C
MAX207EENG
-40°C to +85°C
24 Narrow Plastic DIP
MAX207EEWG
-40°C to +85°C
24 SO
MAX207EEAG
-40°C to +85°C
24 SSOP
*Dice are specified at TA = +25°C.
______________________________________________________________________________________
21
MAX202E–MAX213E, MAX232E/MAX241E
________________________________________________________Ordering Information
MAX202E–MAX213E, MAX232E/MAX241E
±15kV ESD-Protected, +5V RS-232 Transceivers
__________________________________________________________Chip Topographies
MAX202E/MAX232E
V+ C1+
MAX211E/MAX213E/MAX241E
T1OUT
T4OUT
R3IN
T3OUT
T2OUT
V CC GND
R3OUT
C1C2+
SHDN (SHDN)
R2IN
C2-
R2OUT
T2IN
T1OUT
V-
0.117"
(2.972mm)
R1IN
EN (EN)
T1IN
R1OUT
R4IN
R1IN
R4OUT
T4IN
GND
R2IN
T2OUT
R1OUT
T3IN
R5OUT
T1IN
R5IN
T2IN
R2OUT
0.080"
(2.032mm)
V CC
C1+
C1V+
C2+
C2V-
0.188"
(4.775mm)
( ) ARE FOR MAX213E ONLY
TRANSISTOR COUNT: 123
TRANSISTOR COUNT: 542
SUBSTRATE CONNECTED TO GND
SUBSTRATE CONNECTED TO GND
___________________Chip Information
MAX205E/MAX206E/MAX207E/MAX208E
TRANSISTOR COUNT: 328
SUBSTRATE CONNECTED TO GND
22
______________________________________________________________________________________
0.174"
(4.420mm)
±15kV ESD-Protected, +5V RS-232 Transceivers
PDIPN.EPS
______________________________________________________________________________________
23
MAX202E–MAX213E, MAX232E/MAX241E
Package Information
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages.)
Package Information (continued)
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages.)
2
SSOP.EPS
MAX202E–MAX213E, MAX232E/MAX241E
±15kV ESD-Protected, +5V RS-232 Transceivers
1
INCHES
E
H
MILLIMETERS
DIM
MIN
MAX
MIN
MAX
A
0.068
0.078
1.73
1.99
A1
0.002
0.008
0.05
0.21
B
0.010
0.015
0.25
0.38
C
D
0.20
0.09
0.004 0.008
SEE VARIATIONS
E
0.205
e
0.212
0.0256 BSC
5.20
MILLIMETERS
INCHES
D
D
D
D
D
5.38
MIN
MAX
MIN
MAX
0.239
0.239
0.278
0.249
0.249
0.289
6.07
6.07
7.07
6.33
6.33
7.33
0.317
0.397
0.328
0.407
8.07
10.07
8.33
10.33
N
14L
16L
20L
24L
28L
0.65 BSC
H
0.301
0.311
7.65
7.90
L
0.025
0∞
0.037
8∞
0.63
0∞
0.95
8∞
N
A
C
B
e
A1
L
D
NOTES:
1. D&E DO NOT INCLUDE MOLD FLASH.
2. MOLD FLASH OR PROTRUSIONS NOT TO EXCEED .15 MM (.006").
3. CONTROLLING DIMENSION: MILLIMETERS.
4. MEETS JEDEC MO150.
5. LEADS TO BE COPLANAR WITHIN 0.10 MM.
24
PROPRIETARY INFORMATION
TITLE:
PACKAGE OUTLINE, SSOP, 5.3 MM
APPROVAL
DOCUMENT CONTROL NO.
21-0056
______________________________________________________________________________________
REV.
C
1
1
±15kV ESD-Protected, +5V RS-232 Transceivers
E
DIM
A
A1
B
C
e
E
H
L
H
MAX
MIN
0.104
0.093
0.012
0.004
0.019
0.014
0.013
0.009
0.050
0.299
0.291
0.394
0.419
0.050
0.016
SOICW.EPS
INCHES
N
MILLIMETERS
MIN
2.35
0.10
0.35
0.23
MAX
2.65
0.30
0.49
0.32
1.27
7.40
7.60
10.00
10.65
0.40
1.27
VARIATIONS:
1
INCHES
TOP VIEW
DIM
D
D
D
D
D
D
A
B
e
MIN
0.398
0.447
0.496
0.598
0.697
MAX
0.413
0.463
0.512
0.614
0.713
MILLIMETERS
MIN
10.10
11.35
12.60
15.20
17.70
MAX
10.50
11.75
13.00
15.60
18.10
N MS013
16
AA
18
AB
20 AC
24 AD
28 AE
C
0∞-8∞
A1
L
FRONT VIEW
SIDE VIEW
PROPRIETARY INFORMATION
TITLE:
PACKAGE OUTLINE, .300" SOIC
APPROVAL
DOCUMENT CONTROL NO.
REV.
B
1
1
TSSOP4.40mm.EPS
21-0042
Maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim product. No circuit patent licenses are
implied. Maxim reserves the right to change the circuitry and specifications without notice at any time.
Maxim Integrated Products, 120 San Gabriel Drive, Sunnyvale, CA 94086 (408) 737-7600 ___________________25
© 2003 Maxim Integrated Products
Printed USA
is a registered trademark of Maxim Integrated Products.
MAX202E–MAX213E, MAX232E/MAX241E
Package Information (continued)
(The package drawing(s) in this data sheet may not reflect the most current specifications. For the latest package outline information,
go to www.maxim-ic.com/packages.)