19-0175; Rev 6; 3/05
±15kV ESD-Protected, +5V RS-232 Transceivers
General Description
The MAX202E–MAX213E, MAX232E/MAX241E line
drivers/receivers are designed for RS-232 and V.28
communications in harsh environments. Each transmitter
output and receiver input is protected against ±15kV
electrostatic discharge (ESD) shocks, without latchup.
The various combinations of features are outlined in the
Selector Guide.
The drivers and receivers for all ten
devices meet all EIA/TIA-232E and CCITT V.28
specifications at data rates up to 120kbps, when loaded
in accordance with the EIA/TIA-232E specification.
The MAX211E/MAX213E/MAX241E are available in 28-
pin 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.
Next-Generation Device Features
o
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)
o
For Low-Power Applications
MAX3221/MAX3223/MAX3243: 1µA Supply
Current, True +3V to +5.5V RS-232 Transceivers
with Auto-Shutdown™
o
For Space-Constrained Applications
MAX3233E/MAX3235E: ±15kV ESD-Protected,
1µA, 250kbps, +3.0V/+5.5V, Dual RS-232
Transceivers with Internal Capacitors
o
For Low-Voltage or Data Cable Applications
MAX3380E/MAX3381E: +2.35V to +5.5V, 1µA,
2Tx/2Rx RS-232 Transceivers with ±15kV ESD-
Protected I/O and Logic Pins
MAX202E–MAX213E, MAX232E/MAX241E
Ordering Information
PART
MAX202ECPE
MAX202ECSE
TEMP RANGE
0°C to +70°C
0°C to +70°C
PIN-PACKAGE
16 Plastic DIP
16 Narrow SO
________________________Applications
Notebook, Subnotebook, and Palmtop Computers
Battery-Powered Equipment
Hand-Held Equipment
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
2
2
5
4
5
4
4
4
2
4
NO. OF RS-232
RECEIVERS
2
2
5
3
3
4
5
5
2
5
RECEIVERS
ACTIVE IN
SHUTDOWN
0
0
0
0
0
0
0
2
0
0
NO. OF
EXTERNAL
CAPACITORS
(µF)
4 (0.1)
None
None
4 (0.1)
4 (0.1)
4 (0.1)
4 (0.1)
4 (0.1)
4 (1)
4 (1)
LOW-POWER
SHUTDOWN
No
No
Yes
Yes
No
No
Yes
Yes
No
Yes
TTL TRI-
STATE
No
No
Yes
Yes
No
No
Yes
Yes
No
Yes
MAX202E
MAX203E
MAX205E
MAX206E
MAX207E
MAX208E
MAX211E
MAX213E
MAX232E
MAX241E
________________________________________________________________
Maxim Integrated Products
1
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.
±15kV ESD-Protected, +5V RS-232 Transceivers
MAX202E–MAX213E, MAX232E/MAX241E
ABSOLUTE MAXIMUM RATINGS
V
CC
..........................................................................-0.3V to +6V
V+ ................................................................(V
CC
- 0.3V) to +14V
V- ............................................................................-14V to +0.3V
Input Voltages
T_IN ............................................................-0.3V to (V+ + 0.3V)
R_IN ...................................................................................±30V
Output Voltages
T_OUT.................................................(V- - 0.3V) to (V+ + 0.3V)
R_OUT ......................................................-0.3V to (V
CC
+ 0.3V)
Short-Circuit Duration, T_OUT....................................Continuous
Continuous Power Dissipation (T
A
= +70°C)
16-Pin Plastic DIP (derate 10.53mW/°C above +70°C)....842mW
16-Pin Narrow SO (derate 8.70mW/°C above +70°C) .....696mW
16-Pin Wide SO (derate 9.52mW/°C above +70°C) ......762mW
16-Pin TSSOP (derate 9.4mW/°C above +70°C) ...........755mW
20-Pin Plastic DIP (derate 11.11mW/°C above +70°C)...889mW
20-Pin SO (derate 10.00mW/°C above +70°C).............800mW
24-Pin Narrow Plastic DIP
(derate 13.33mW/°C above +70°C) ...............................1.07W
24-Pin Wide Plastic DIP
(derate 14.29mW/°C above +70°C) ................................1.14W
24-Pin SO (derate 11.76mW/°C above +70°C).............941mW
24-Pin SSOP (derate 8.00mW/°C above +70°C) ..........640mW
28-Pin SO (derate 12.50mW/°C above +70°C)....................1W
28-Pin SSOP (derate 9.52mW/°C above +70°C) ..........762mW
Operating Temperature Ranges
MAX2_ _EC_ _ .....................................................0°C to +70°C
MAX2_ _EE_ _...................................................-40°C to +85°C
Storage Temperature Range .............................-65°C to +165°C
Lead Temperature (soldering, 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
(V
CC
= +5V ±10% for MAX202E/206E/208E/211E/213E/232E/241E; V
CC
= +5V ±5% for MAX203E/205E/207E; C1–C4 = 0.1µF for
MAX202E/206E/207E/208E/211E/213E; C1–C4 = 1µF for MAX232E/241E; T
A
= T
MIN
to T
MAX
; unless otherwise noted. Typical values
are at T
A
= +25°C.)
PARAMETER
DC CHARACTERISTICS
MAX202E/203E
MAX205E–208E
V
CC
Supply Current
I
CC
No load, T
A
= +25°C
MAX211E/213E
MAX232E
MAX241E
MAX205E/206E
Shutdown Supply Current
LOGIC
Input Pullup Current
Input Leakage Current
Input Threshold Low
V
IL
T_IN = 0V (MAX205E–208E/211E/213E/241E)
T_IN = 0V to V
CC
(MAX202E/203E/232E)
T_IN; EN,
SHDN
(MAX213E) or
EN,
SHDN (MAX205E–208E/211E/241E)
T_IN
Input Threshold High
V
IH
EN,
SHDN
(MAX213E) or
EN,
SHDN
(MAX205E–208E/211E/241E)
R_OUT; I
OUT
= 3.2mA (MAX202E/203E/232E) or
I
OUT
= 1.6mA (MAX205E/208E/211E/213E/241E)
R_OUT; I
OUT
= -1.0mA
EN
= V
CC
, EN = 0V, 0V
≤
R
OUT
≤
V
CC
,
MAX205E–208E/211E/213E/241E outputs disabled
3.5 V
CC
- 0.4
±0.05
±10
2.0
2.4
0.4
V
15
200
±10
0.8
µA
µA
V
T
A
= +25°C, Figure 1
MAX211E/241E
MAX213E
8
11
14
5
7
1
1
15
15
20
20
10
15
10
10
50
µA
mA
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
Output-Voltage Low
Output-Voltage High
Output Leakage Current
V
OL
V
OH
V
V
µA
2
_______________________________________________________________________________________
±15kV ESD-Protected, +5V RS-232 Transceivers
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= +5V ±10% for MAX202E/206E/208E/211E/213E/232E/241E; V
CC
= +5V ±5% for MAX203E/205E/207E; C1–C4 = 0.1µF for
MAX202E/206E/207E/208E/211E/213E; C1–C4 = 1µF for MAX232E/241E; T
A
= T
MIN
to T
MAX
; unless otherwise noted. Typical values
are at T
A
= +25°C.)
PARAMETER
Input Voltage Range
All parts, normal operation
Input Threshold Low
T
A
= +25°C,
V
CC
= 5V
MAX213E,
SHDN
= 0V,
EN = V
CC
All parts, normal operation
Input Threshold High
Input Hysteresis
Input Resistance
EIA/TIA-232E TRANSMITTER OUTPUTS
Output Voltage Swing
Output Resistance
Output Short-Circuit Current
TIMING CHARACTERISTICS
Maximum Data Rate
t
PLHR
,
t
PHLR
R
L
= 3kΩ to 7kΩ, C
L
= 50pF to 1000pF,
one transmitter switching
All parts, normal operation
Receiver Propagation Delay
C
L
= 150pF
MAX213E (R4, R5),
SHDN
= 0V, EN = V
CC
120
0.5
4
600
200
2
10
40
µs
kbps
All drivers loaded with 3kΩ to ground (Note 1)
V
CC
= V+ = V- = 0V, V
OUT
= ±2V
±5
300
±10
±60
±9
V
Ω
mA
T
A
= +25°C,
V
CC
= 5V
MAX213E (R4, R5),
SHDN
= 0V, EN = V
CC
0.2
3
SYMBOL
CONDITIONS
MIN
-30
0.8
0.6
TYP
MAX
30
1.2
1.5
1.7
1.5
0.5
5
2.4
2.4
1.0
7
V
V
kΩ
V
UNITS
V
MAX202E–MAX213E, MAX232E/MAX241E
EIA/TIA-232E RECEIVER INPUTS
V
CC
= 5V, no hysteresis in shutdown
T
A
= +25°C, V
CC
= 5V
Receiver Output Enable Time
Receiver Output Disable Time
Transmitter Propagation Delay
t
PLHT
,
t
PHLT
MAX205E/206E/211E/213E/241E normal
operation, Figure 2
MAX205E/206E/211E/213E/241E normal
operation, Figure 2
R
L
= 3kΩ, C
L
= 2500pF, all transmitters loaded
T
A
= +25°C, V
CC
= 5V, R
L
= 3kΩ to 7kΩ,
C
L
= 50pF to 1000pF, measured from -3V to
+3V or +3V to -3V, Figure 3
ns
ns
µs
Transition-Region Slew Rate
3
6
30
V/µs
ESD PERFORMANCE: TRANSMITTER OUTPUTS, RECEIVER INPUTS
Human Body Model
ESD-Protection Voltage
IEC1000-4-2, Contact Discharge
IEC1000-4-2, Air-Gap Discharge
Note 1:
MAX211EE_ _ and MAX213EE_ _ tested with V
CC
= +5V ±5%.
Note 1:
MAX211EE_ _ tested with V
CC
= +5V ±5%.
±15
±8
±15
kV
_______________________________________________________________________________________
3
±15kV ESD-Protected, +5V RS-232 Transceivers
MAX202E–MAX213E, MAX232E/MAX241E
__________________________________________Typical Operating Characteristics
(Typical Operating Circuits, V
CC
= +5V, T
A
= +25°C, unless otherwise noted.)
MAX202E/MAX203E
TRANSMITTER OUTPUT VOLTAGE
vs. LOAD CAPACITANCE
MAX202E-TOC1
MAX202E-TOC2
MAX232E
TRANSMITTER OUTPUT VOLTAGE
vs. LOAD CAPACITANCE
8.0
7.5
VOH, -VOL (V)
7.0
6.5
V
CC
= 5.0V
6.0
5.5
V
CC
= 4.5V
5.0
0
1000
2000
3000
4000
5000
LOAD CAPACITANCE (pF)
5.0
0
V
CC
= 5.5V
ALL TRANSMITTERS LOADED
DATA RATE = 120kbps
R
L
= 3kΩ
8.0
7.5
VOH, -VOL (V)
7.0
6.5
6.0
5.5
MAX241E
TRANSMITTER OUTPUT VOLTAGE
vs. LOAD CAPACITANCE
ALL TRANSMITTERS LOADED
DATA RATE = 120kbps
R
L
= 3kΩ
V
CC
= 5.5V
MAX202E-TOC3
ALL TRANSMITTERS LOADED
DATA RATE = 120kbps
R
L
= 3kΩ
8.0
7.5
VOH, -VOL (V)
7.0
6.5
6.0
5.5
V
CC
= 5.5V
V
CC
= 5.0V
V
CC
= 5.0V
V
CC
= 4.5V
5.0
1000
2000
3000
4000
5000
0
V
CC
= 4.5V
1000
2000
3000
4000
5000
LOAD CAPACITANCE (pF)
LOAD CAPACITANCE (pF)
MAX211E/MAX213E
TRANSMITTER OUTPUT VOLTAGE
vs. LOAD CAPACITANCE
MAX202E-TOC4
MAX211E/MAX213E/MAX241E
TRANSMITTER SLEW RATE
vs. LOAD CAPACITANCE
ALL TRANSMITTERS LOADED
DATA RATE = 120kbps
R
L
= 3kΩ
MAX202E-TOC5
8.0
7.5
VOH, -VOL (V)
7.0
6.5
6.0
5.5
5.0
0
V
CC
= 4.5V
1000
2000
V
CC
= 5.0V
3000
4000
ALL TRANSMITTERS LOADED
DATA RATE = 120kbps
R
L
= 3kΩ
30
25
SLEW RATE ( V/µs)
20
15
10
-SLEW RATE
5
+SLEW RATE
0
V
CC
= 5.5V
5000
0
1000
2000
3000
4000
5000
LOAD CAPACITANCE (pF)
LOAD CAPACITANCE (pF)
4
______________________________________________________________________________________
±15kV ESD-Protected, +5V RS-232 Transceivers
MAX202E–MAX213E, MAX232E/MAX241E
____________________________Typical Operating Characteristics (continued)
(Typical Operating Circuits, V
CC
= +5V, T
A
= +25°C, unless otherwise noted.)
MAX205E–MAX208E
TRANSMITTER OUTPUT VOLTAGE
vs. LOAD CAPACITANCE
20kbps
120kbps
240kbps
SLEW RATE (V/µs)
2.5
0
-2.5
240kbps
-5.0
-7.5
0
1000
2000
3000
4000
5000
0
1000
2000
3000
4000
5000
LOAD CAPACITANCE (pF)
LOAD CAPACITANCE (pF)
120kbps
20kbps
V
CC
= +4.5V, R
L
= 3kΩ
1 TRANSMITTER AT FULL DATA RATE
4 TRANSMITTERS AT 1/8 DATA RATE
MAX202E TOC-07
MAX202E-TOC6
MAX202E/MAX203E/MAX232E
TRANSMITTER SLEW RATE
vs. LOAD CAPACITANCE
14
12
SLEW RATE ( V/µs)
10
8
-SLEW RATE
6
4
2
+SLEW RATE
ALL TRANSMITTERS LOADED
DATA RATE = 120kbps
R
L
= 3kΩ
7.5
5.0
OUTPUT VOLTAGE (V)
MAX205E–MAX208E
TRANSMITTER SLEW RATE
vs. LOAD CAPACITANCE
18
16
14
12
10
8
6
4
2
0
0
1000
2000
3000
4000
5000
LOAD CAPACITANCE (pF)
RISE
FALL
V
CC
= +4.5V, R
L
= 3kΩ
1 TRANSMITTER AT FULL DATA RATE
4 TRANSMITTERS AT 1/8 DATA RATE
MAX202E TOC-08
20
MAX205E–MAX208E
SUPPLY CURRENT
vs. LOAD CAPACITANCE
MAX202E TOC-09
MAX205E–MAX208E
OUTPUT VOLTAGE vs. DATA RATE
7.5
OUTPUT VOLTAGE (V)
5.0
2.5
0
-2.5
-5.0
V
OUT-
V-
0
30
60
90 120 150 180 210 240
DATA RATE (kbps)
V+
V
OUT
+
V
CC
= +4.5V, R
L
= 3kΩ
1 TRANSMITTER AT FULL DATA RATE
4 TRANSMITTERS AT 1/8 DATA RATE
MAX202E TOC-10
50
240kbps
45
SUPPLY CURRENT (mA)
40
35
30
25
20
0
1000
2000
3000
4000
20kbps
V
CC
= +4.5V, R
L
= 3kΩ
1 TRANSMITTER AT FULL DATA RATE
4 TRANSMITTERS AT 1/8 DATA RATE
120kbps
10.0
-7.5
-10.0
5000
LOAD CAPACITANCE (pF)
_______________________________________________________________________________________
5
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