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104112663 UNPDF
19-0175; Rev 3; 5/96
±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 Selection 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 narrow SO, wide SO, and DIP packages. The
MAX203E comes in a 20-pin DIP/SO package, and
needs no external charge-pump capacitors. The
MAX205E comes in a 24-pin wide DIP package, and
also eliminates external charge-pump capacitors. The
MAX206E/MAX207E/MAX208E come in 24-pin SO,
SSOP, and narrow DIP packages. The MAX232E/
MAX241E operate with four 1µF capacitors, while the
MAX202E/MAX206E/MAX207E/MAX208E/MAX211E/
MAX213E operate with four 0.1µF capacitors, further
reducing cost and board space.
________________________Applications
Notebook, Subnotebook, and Palmtop Computers
Battery-Powered Equipment
Hand-Held Equipment
____________________________Features
©
ESD Protection for RS-232 I/O Pins:
±15kV—Human Body Model
±8kV—IEC1000-4-2, Contact Discharge
±15kV—IEC1000-4-2, Air-Gap Discharge
©
Latchup Free (unlike bipolar equivalents)
©
Guaranteed 120kbps Data Rate—LapLink™
Compatible
©
Guaranteed 3V/µs Min Slew Rate
©
Operate from a Single +5V Power Supply
_________________Pin Configurations
TOP VIEW
C1+
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
V CC
GND
T1OUT
R1IN
V+
C1-
C2+
MAX202E
MAX232E
C2-
R1OUT
T1IN
T2IN
R2OUT
V-
T2OUT
R2IN
DIP/SO
Pin Configurations and Typical Operating Circuits continued at
end of data sheet.
_____________________________________________________________Selection Guide
PART
No. of RS-232
DRIVERS
No. of RS-232
RECEIVERS
RECEIVERS
ACTIVE IN
SHUTDOWN
No. of
EXTERNAL
CAPACITORS
LOW-POWER
SHUTDOWN
TTL THREE-
STATE
MAX202E
2
2
0
4 (0.1µF)
No
No
MAX203E
2
2
0
None
No
No
MAX205E
5
5
0
None
Yes
Yes
MAX206E
4
3
0
4 (0.1µF)
Yes
Yes
MAX207E
5
3
0
4 (0.1µF)
No
No
MAX208E
4
4
0
4 (0.1µF)
No
No
MAX211E
4
5
0
4 (0.1µF)
Yes
Yes
MAX213E
4
5
2
4 (0.1µF)
Yes
Yes
MAX232E
2
2
0
4 (1µF)
No
No
MAX241E
4
5
0
4 (1µF)
Yes
Yes
LapLink is a registered trademark of Traveling Software, Inc.
________________________________________________________________ Maxim Integrated Products 1
For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800
Ordering Information appears at end of data sheet.
104112663.005.png 104112663.006.png 104112663.007.png
±15kV ESD-Protected, +5V RS-232 Transceivers
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
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
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
SYMBOL
CONDITIONS
MIN TYP MAX
UNITS
DC CHARACTERISTICS
MAX202E/203E
8
15
MAX205E–208E
11
20
V CC Supply Current
I CC
No load, T A = +25°C
MAX211E/213E
MAX232E
14
20
mA
5
10
MAX241E
7
15
MAX205E/206E
1
10
Shutdown Supply Current
T A = +25°C, Figure 1
MAX211E/241E
1
10
µA
MAX213E
15
50
LOGIC
Input Pull-Up Current
T_IN = 0V (MAX205E–208E/211E/213E/241E)
15
200
µA
Input Leakage Current
T_IN = 0V to V CC (MAX202E/203E/232E)
±10
µA
Input Threshold Low
V IL
T_IN; EN, SHDN (MAX213E) or
EN, SHDN (MAX205E–208E/211E/241E)
0.8
V
T_IN
2.0
Input Threshold High
V IH
EN, SHDN (MAX213E) or EN, SHDN
(MAX205E–208E/211E/241E)
2.4
V
Output Voltage Low
V OL
R_OUT; I OUT = 3.2mA (MAX202E/203E/232E) or
I OUT = 1.6mA (MAX205E/208E/211E/213E/241E)
0.4
V
Output Voltage High
V OH
R_OUT; I OUT = -1.0mA
3.5 V CC - 0.4
V
Output Leakage Current
EN = V CC , EN = 0V, 0V £ R OUT £ V CC ,
MAX205E–208E/211E/213E/241E outputs disabled
±0.05 ±10
µA
2 _______________________________________________________________________________________
104112663.008.png
±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
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
EIA/TIA-232E RECEIVER INPUTS
Input Voltage Range
-30
30
V
All parts, normal operation
0.8
1.2
T A = +25°C,
V CC = 5V
Input Threshold Low
MAX213E, SHDN = 0V,
EN = V CC
0.6
1.5
V
All parts, normal operation
MAX213E (R4, R5),
SHDN = 0V, EN = V CC
1.7
2.4
T A = +25°C,
V CC = 5V
Input Threshold High
1.5
2.4
V
Input Hysteresis
V CC = 5V, no hysteresis in shutdown
0.2
0.5
1.0
V
Input Resistance
T A = +25°C, V CC = 5V
3
5
7
k
EIA/TIA-232E TRANSMITTER OUTPUTS
Output Voltage Swing
All drivers loaded with 3k
½
to ground (Note 1)
±5
±9
V
Output Resistance
V CC = V+ = V- = 0V, V OUT = ±2V
300
½
Output Short-Circuit Current
±10
±60
mA
TIMING CHARACTERISTICS
Maximum Data Rate
, C L = 50pF to 1000pF,
one transmitter switching
½
to 7k
½
120
kbps
All parts, normal operation
MAX213E (R4, R5),
SHDN = 0V, EN = V CC
0.5
10
t PLHR ,
t PHLR
Receiver Propagation Delay
C L = 150pF
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
Transmitter Propagation Delay
t PLHT ,
t PHLT
R L = 3k ½ , C L = 2500pF, all transmitters loaded
2
µs
Transition-Region Slew Rate
T A = +25°C, V CC = 5V, R L = 3k ½ to 7k ½ ,
C L = 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
±15
ESD-Protection Voltage
IEC1000-4-2, Contact Discharge
±8
kV
Note 1: MAX211EE_ _ and MAX213EE_ _ tested with V CC = +5V ±5%.
IEC1000-4-2, Air-Gap Discharge
±15
Note 1: MAX211EE_ _ tested with V CC = +5V ±5%.
_______________________________________________________________________________________ 3
½
R L = 3k
104112663.001.png
±15kV ESD-Protected, +5V RS-232 Transceivers
__________________________________________Typical Operating Characteristics
(Typical Operating Circuits, V CC = +5V, T A = +25°C, unless otherwise noted.)
MAX232E
TRANSMITTER OUTPUT VOLTAGE
vs. LOAD CAPACITANCE
MAX202E/MAX203E
TRANSMITTER OUTPUT VOLTAGE
vs. LOAD CAPACITANCE
MAX241E
TRANSMITTER OUTPUT VOLTAGE
vs. LOAD CAPACITANCE
8.0
8.0
8.0
ALL TRANSMITTERS LOADED
DATA RATE = 120kbps
R L = 3k W
ALL TRANSMITTERS LOADED
DATA RATE = 120kbps
R L = 3k W
ALL TRANSMITTERS LOADED
DATA RATE = 120kbps
R L = 3k W
7.5
7.5
7.5
7.0
7.0
7.0
V CC = 5.5V
V CC = 5.5V
V CC = 5.5V
6.5
6.5
V CC = 5.0V
6.5
V CC = 5.0V
6.0
6.0
6.0
V CC = 5.0V
5.5
5.5
5.5
V CC = 4.5V
V CC = 4.5V
V CC = 4.5V
5.0
5.0
5.0
0
1000
2000
3000
4000 5000
0
1000
2000
3000
4000 5000
0
1000
2000
3000
4000 5000
LOAD CAPACITANCE (pF)
LOAD CAPACITANCE (pF)
LOAD CAPACITANCE (pF)
8.0
MAX211E/MAX213E
TRANSMITTER OUTPUT VOLTAGE
vs. LOAD CAPACITANCE
30
MAX211E/MAX213E/MAX241E
TRANSMITTER SLEW RATE
vs. LOAD CAPACITANCE
7.5
ALL TRANSMITTERS LOADED
DATA RATE = 120kbps
R L = 3k W
25
ALL TRANSMITTERS LOADED
DATA RATE = 120kbps
R L = 3k W
7.0
20
6.5
V CC = 5.5V
15
6.0
10
-SLEW RATE
5.5
5
+SLEW RATE
5.0
V CC = 4.5V
V CC = 5.0V
0
0
1000
2000
3000
4000 5000
0
1000
2000
3000
4000 5000
LOAD CAPACITANCE (pF)
LOAD CAPACITANCE (pF)
4 _______________________________________________________________________________________
104112663.002.png 104112663.003.png
±15kV ESD-Protected, +5V RS-232 Transceivers
____________________________Typical Operating Characteristics (continued)
(Typical Operating Circuits, V CC = +5V, T A = +25°C, unless otherwise noted.)
MAX202E/MAX203E/MAX232E
TRANSMITTER SLEW RATE
vs. LOAD CAPACITANCE
MAX205E–MAX208E
TRANSMITTER OUTPUT VOLTAGE
vs. LOAD CAPACITANCE
MAX205E–MAX208E
TRANSMITTER SLEW RATE
vs. LOAD CAPACITANCE
14
7.5
20
18
16
14
ALL TRANSMITTERS LOADED
DATA RATE = 120kbps
R L = 3k W
20kbps
V CC = +4.5V, R L = 3k W
1 TRANSMITTER AT FULL DATA RATE
4 TRANSMITTERS AT 1/8 DATA RATE
12
5.0
120kbps
240kbps
10
2.5
12
V CC = +4.5V, R L = 3k W
1 TRANSMITTER AT FULL DATA RATE
4 TRANSMITTERS AT 1/8 DATA RATE
RISE
8
0
10
FALL
-SLEW RATE
8
6
-2.5
6
4
+SLEW RATE
240kbps
120kbps
4
-5.0
2
20kbps
2
-7.5
0
0
1000
2000
3000
4000 5000
0
1000
2000
3000
4000
5000
0
1000
2000
3000
4000
5000
LOAD CAPACITANCE (pF)
LOAD CAPACITANCE (pF)
LOAD CAPACITANCE (pF)
MAX205E–MAX208E
SUPPLY CURRENT
vs. LOAD CAPACITANCE
MAX205E–MAX208E
OUTPUT VOLTAGE vs. DATA RATE
50
10.0
240kbps
7.5
V+
45
5.0
V OUT +
40
120kbps
2.5
V CC = +4.5V, R L = 3k W
1 TRANSMITTER AT FULL DATA RATE
4 TRANSMITTERS AT 1/8 DATA RATE
35
0
30
20kbps
-2.5
V OUT-
-5.0
25
V CC = +4.5V, R L = 3k W
1 TRANSMITTER AT FULL DATA RATE
4 TRANSMITTERS AT 1/8 DATA RATE
-7.5
V-
20
-10.0
0
1000
2000
3000
4000
5000
0
30
60
90
120
150
180
210
240
LOAD CAPACITANCE (pF)
DATA RATE (kbps)
_______________________________________________________________________________________ 5
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