MAX232ECPE [MAXIM]
【15kV ESD-Protected, +5V RS-232 Transceivers; ± 15kV ESD保护， + 5V RS- 232收发器
| 型号： | MAX232ECPE |
| 厂家： | 
MAXIM INTEGRATED PRODUCTS |
| 描述： | 【15kV ESD-Protected, +5V RS-232 Transceivers |
| 文件： | 总25页 (文件大小：506K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
19-0175; Rev 5; 10/03
1ꢀ5k EꢁD-ꢂrotected, +ꢀk Rꢁ-232 Transceivers
General Description
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 1ꢀ5V
electrostatic discharge (ESD) shoc5s, 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 1205bps, when loaded
in accordance with the EIA/TIA-232E specification.
♦ 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™
The MAX211E/MAX213E/MAX241E are available in 28-
pin SO pac5ages, 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
pac5ages. The MAX203E comes in a 20-pin DIP/SO
pac5age, and needs no external charge-pump
capacitors. The MAX20ꢀE comes in a 24-pin wide DIP
pac5age, and also eliminates external charge-pump
capacitors. The MAX206E/MAX207E/MAX208E come in
24-pin SO, SSOP, and narrow DIP pac5ages. 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 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 ESD-
Protected I/O and Logic Pins
________________________Applications
Ordering Information, Pin Configurations, and Typical
Operating Circuits appear at end of data sheet.
Noteboo5, Subnoteboo5, and Palmtop Computers
Battery-Powered Equipment
Hand-Held Equipment
AutoShutdown and UCSP are trademarks of Maxim Integrated
Products, Inc.
ꢁelector Guide
NO. OF
RECEIVERS
NO. OF RS-232 NO. OF RS-232
EXTERNAL
CAPACITORS
(µF)
LOW-POWER
SHUTDOWN
TTL TRI-
STATE
PART
ACTIVE IN
DRIVERS
RECEIVERS
SHUTDOWN
MAX202E
MAX203E
MAX205E
MAX206E
MAX207E
MAX208E
MAX211E
MAX213E
MAX232E
MAX241E
2
2
ꢀ
4
ꢀ
4
4
4
2
4
2
2
ꢀ
3
3
4
ꢀ
ꢀ
2
ꢀ
0
0
0
0
0
0
0
2
0
0
4 (0.1)
None
None
4 (0.1)
4 (0.1)
4 (0.1)
4 (0.1)
4 (0.1)
4 (1)
No
No
No
No
Yes
Yes
No
Yes
Yes
No
No
No
Yes
Yes
No
Yes
Yes
No
4 (1)
Yes
Yes
________________________________________________________________ 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.
1ꢀ5k EꢁD-ꢂrotected, +ꢀk Rꢁ-232 Transceivers
ABSOLUTE MAXIMUM RATINGS
V
..........................................................................-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.ꢀ0mW/°C above +70°C)....................1W
28-Pin SSOP (derate 9.ꢀ2mW/°C above +70°C) ..........762mW
Operating Temperature Ranges
MAX2_ _EC_ _ .....................................................0°C to +70°C
MAX2_ _EE_ _...................................................-40°C to +8ꢀ°C
Storage Temperature Range.............................-6ꢀ°C to +16ꢀ°C
Lead Temperature (soldering, 10sec) .............................+300°C
CC
V+................................................................(V
- 0.3V) to +14V
CC
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
+ 0.3V)
CC
Short-Circuit Duration, T_OUT....................................Continuous
Continuous Power Dissipation (T = +70°C)
A
16-Pin Plastic DIP (derate 10.ꢀ3mW/°C above +70°C)....842mW
16-Pin Narrow SO (derate 8.70mW/°C above +70°C) .....696mW
16-Pin Wide SO (derate 9.ꢀ2mW/°C above +70°C) ......762mW
16-Pin TSSOP (derate 9.4mW/°C above +70°C) ...........7ꢀꢀmW
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
= +ꢀV 10% for MAX202E/206E/208E/211E/213E/232E/241Eꢁ V
= +ꢀV ꢀ% for MAX203E/20ꢀE/207Eꢁ C1–C4 = 0.1µF for
CC
MAX202E/206E/207E/208E/211E/213Eꢁ C1–C4 = 1µF for MAX232E/241Eꢁ T = T
to T
ꢁ unless otherwise noted. Typical values
A
MIN
MAX
are at T = +2ꢀ°C.)
A
PARAMETER
DC CHARACTERISTICS
SYMBOL
CONDITIONS
MIN TYP MAX
UNITS
mA
MAX202E/203E
MAX20ꢀE–208E
MAX211E/213E
MAX232E
8
11
14
ꢀ
1ꢀ
20
20
10
1ꢀ
10
10
ꢀ0
V
Supply Current
I
No load, T = +2ꢀ°C
A
CC
CC
MAX241E
7
MAX20ꢀE/206E
MAX211E/241E
MAX213E
1
Shutdown Supply Current
T
A
= +2ꢀ°C, Figure 1
1
µA
1ꢀ
LOGIC
Input Pull-Up Current
T_IN = 0V (MAX20ꢀE–208E/211E/213E/241E)
T_IN = 0V to V (MAX202E/203E/232E)
1ꢀ
200
10
µA
µA
Input Lea5age Current
CC
T_INꢁ EN, SHDN (MAX213E) or
EN, SHDN (MAX20ꢀE–208E/211E/241E)
Input Threshold Low
Input Threshold High
V
0.8
V
IL
T_IN
2.0
2.4
V
V
IH
EN, SHDN (MAX213E) or EN, SHDN
(MAX20ꢀE–208E/211E/241E)
R_OUTꢁ I
= 3.2mA (MAX202E/203E/232E) or
OUT
Output Voltage Low
Output Voltage High
Output Lea5age Current
V
0.4
10
V
V
OL
I
= 1.6mA (MAX20ꢀE/208E/211E/213E/241E)
OUT
V
R_OUTꢁ I
= -1.0mA
OUT
3.ꢀ V - 0.4
CC
OH
EN = V , EN = 0V, 0V ≤ R
≤ V
,
CC
CC
OUT
0.0ꢀ
µA
MAX20ꢀE–208E/211E/213E/241E outputs disabled
2
_______________________________________________________________________________________
1ꢀ5k EꢁD-ꢂrotected, +ꢀk Rꢁ-232 Transceivers
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= +ꢀV 10% for MAX202E/206E/208E/211E/213E/232E/241Eꢁ V
= +ꢀV ꢀ% for MAX203E/20ꢀE/207Eꢁ C1–C4 = 0.1µF for
CC
MAX202E/206E/207E/208E/211E/213Eꢁ C1–C4 = 1µF for MAX232E/241Eꢁ T = T
to T
ꢁ unless otherwise noted. Typical values
A
MIN
MAX
are at T = +2ꢀ°C.)
A
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
EIA/TIA-232E RECEIVER INPUTS
Input Voltage Range
-30
0.8
30
V
V
All parts, normal operation
1.2
1.ꢀ
T
V
= +2ꢀ°C,
A
Input Threshold Low
Input Threshold High
MAX213E, SHDN = 0V,
= ꢀV
0.6
CC
EN = V
CC
All parts, normal operation
MAX213E (R4, Rꢀ),
1.7
1.ꢀ
2.4
2.4
T
A
= +2ꢀ°C,
V
V
= ꢀV
CC
SHDN = 0V, EN = V
CC
Input Hysteresis
Input Resistance
V
= ꢀV, no hysteresis in shutdown
= ꢀV
0.2
3
0.ꢀ
ꢀ
1.0
7
V
CC
T
A
= +2ꢀ°C, V
5Ω
CC
EIA/TIA-232E TRANSMITTER OUTPUTS
Output Voltage Swing
All drivers loaded with 35Ω to ground (Note 1)
= V+ = V- = 0V, V 2V
ꢀ
9
V
Output Resistance
V
=
OUT
300
Ω
CC
Output Short-Circuit Current
TIMING CHARACTERISTICS
Maximum Data Rate
10
60
mA
R = 35Ω to 75Ω, C = ꢀ0pF to 1000pF,
one transmitter switching
L
L
120
5bps
µs
All parts, normal operation
0.ꢀ
4
10
40
t
t
,
PLHR
Receiver Propagation Delay
C = 1ꢀ0pF
L
MAX213E (R4, Rꢀ),
PHLR
SHDN = 0V, EN = V
CC
MAX20ꢀE/206E/211E/213E/241E normal
operation, Figure 2
Receiver Output Enable Time
Receiver Output Disable Time
Transmitter Propagation Delay
600
200
2
ns
ns
µs
MAX20ꢀE/206E/211E/213E/241E normal
operation, Figure 2
t
t
,
PLHT
R = 35Ω, C = 2ꢀ00pF, all transmitters loaded
L
L
PHLT
T
A
= +2ꢀ°C, V = ꢀV, R = 35Ω to 75Ω,
CC L
Transition-Region Slew Rate
C = ꢀ0pF to 1000pF, measured from -3V to
+3V or +3V to -3V, Figure 3
3
6
30
V/µs
5V
L
ESD PERFORMANCE: TRANSMITTER OUTPUTS, RECEIVER INPUTS
Human Body Model
1ꢀ
8
ESD-Protection Voltage
IEC1000-4-2, Contact Discharge
IEC1000-4-2, Air-Gap Discharge
1ꢀ
t1t
Note 1: MAX211EE_ _ tested with V
= +ꢀV ꢀ%.
CC
_______________________________________________________________________________________
3
1ꢀ5k EꢁD-ꢂrotected, +ꢀk Rꢁ-232 Transceivers
__________________________________________Typical Operating Characteristics
(Typical Operating Circuits, V
= +ꢀV, T = +2ꢀ°C, unless otherwise noted.)
A
CC
MAX202E/MAX203E
TRANSMITTER OUTPUT VOLTAGE
vs. LOAD CAPACITANCE
MAX232E
TRANSMITTER OUTPUT VOLTAGE
vs. LOAD CAPACITANCE
MAX241E
TRANSMITTER OUTPUT VOLTAGE
vs. LOAD CAPACITANCE
8.0
7.5
7.0
6.5
6.0
8.0
7.5
7.0
6.5
6.0
8.0
7.5
7.0
6.5
6.0
ALL TRANSMITTERS LOADED
DATA RATE = 120kbps
ALL TRANSMITTERS LOADED
DATA RATE = 120kbps
ALL TRANSMITTERS LOADED
DATA RATE = 120kbps
R = 3kΩ
L
R = 3kΩ
L
R = 3kΩ
L
V
CC
= 5.5V
V = 5.5V
CC
V
CC
= 5.5V
V
CC
= 5.0V
V
CC
= 5.0V
V
CC
= 5.0V
5.5
5.0
5.5
5.0
5.5
5.0
V
CC
= 4.5V
V
CC
= 4.5V
V
CC
= 4.5V
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)
MAX211E/MAX213E
TRANSMITTER OUTPUT VOLTAGE
vs. LOAD CAPACITANCE
MAX211E/MAX213E/MAX241E
TRANSMITTER SLEW RATE
vs. LOAD CAPACITANCE
8.0
7.5
7.0
6.5
6.0
30
25
20
15
10
ALL TRANSMITTERS LOADED
DATA RATE = 120kbps
ALL TRANSMITTERS LOADED
DATA RATE = 120kbps
R = 3kΩ
L
R = 3kΩ
L
V
CC
= 5.5V
-SLEW RATE
+SLEW RATE
5.5
5.0
5
0
V
CC
= 4.5V
V
CC
= 5.0V
0
1000
2000
3000
4000 5000
0
1000
2000
3000
4000 5000
LOAD CAPACITANCE (pF)
LOAD CAPACITANCE (pF)
4
______________________________________________________________________________________
1ꢀ5k EꢁD-ꢂrotected, +ꢀk Rꢁ-232 Transceivers
____________________________Typical Operating Characteristics (continued)
(Typical Operating Circuits, V
= +ꢀV, T = +2ꢀ°C, unless otherwise noted.)
A
CC
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
20
18
16
14
7.5
5.0
2.5
0
14
12
10
8
20kbps
V
= +4.5V, R = 3kΩ
L
ALL TRANSMITTERS LOADED
DATA RATE = 120kbps
CC
1 TRANSMITTER AT FULL DATA RATE
4 TRANSMITTERS AT 1/8 DATA RATE
120kbps
R = 3kΩ
L
240kbps
12
10
8
V
CC
= +4.5V, R = 3kΩ
L
1 TRANSMITTER AT FULL DATA RATE
4 TRANSMITTERS AT 1/8 DATA RATE
RISE
FALL
-SLEW RATE
6
-2.5
-5.0
-7.5
6
240kbps
+SLEW RATE
4
120kbps
4
2
2
0
20kbps
4000
0
1000
2000
3000
4000 5000
0
1000
2000
3000
4000
5000
0
1000
2000
3000
5000
LOAD CAPACITANCE (pF)
LOAD CAPACITANCE (pF)
LOAD CAPACITANCE (pF)
MAX205E–MAX208E
SUPPLY CURRENT
vs. LOAD CAPACITANCE
MAX205E–MAX208E
OUTPUT VOLTAGE vs. DATA RATE
10.0
50
45
40
35
30
25
20
V+
240kbps
120kbps
7.5
5.0
2.5
V
+
OUT
V
CC
= +4.5V, R = 3kΩ
L
1 TRANSMITTER AT FULL DATA RATE
4 TRANSMITTERS AT 1/8 DATA RATE
0
-2.5
-5.0
20kbps
V
OUT-
V
CC
= +4.5V, R = 3kΩ
L
V-
1 TRANSMITTER AT FULL DATA RATE
4 TRANSMITTERS AT 1/8 DATA RATE
-7.5
-10.0
0
30 60 90 120 150 180 210 240
DATA RATE (kbps)
0
1000
2000
3000
4000
5000
LOAD CAPACITANCE (pF)
_______________________________________________________________________________________
5
1ꢀ5k EꢁD-ꢂrotected, +ꢀk Rꢁ-232 Transceivers
_____________________________________________________________ꢂin Descriptions
MAX202E/MAX232E
PIN
NAME
FUNCTION
DIP/SO/TSSOP
LCC
2, 4
1, 3
C1+, C1-
V+
Terminals for positive charge-pump capacitor
2
3
+2V
voltage generated by the charge pump
CC
4, ꢀ
6
ꢀ, 7
8
C2+, C2-
V-
Terminals for negative charge-pump capacitor
-2V voltage generated by the charge pump
CC
7, 14
8, 13
9, 12
10, 11
1ꢀ
9, 18
10, 17
12, 1ꢀ
13, 14
19
T_OUT
R_IN
R_OUT
T_IN
RS-232 Driver Outputs
RS-232 Receiver Outputs
RS-232 Receiver Outputs
RS-232 Driver Inputs
GND
Ground
16
__
20
V
+4.ꢀV to +ꢀ.ꢀV Supply-Voltage Input
No Connect—not internally connected.
CC
1, 6, 11, 16
N.C.
MAX203E
PIN
NAME
FUNCTION
DIP
1, 2
3, 20
4,19
ꢀ,18
6, 9
7
SO
1, 2
3, 20
4, 19
ꢀ, 18
6, 9
7
T_IN
R_OUT
R_IN
T_OUT
GND
RS-232 Driver Inputs
RS-232 Receiver Outputs
RS-232 Receiver Inputs
RS-232 Transmitter Outputs
Ground
V
+4.ꢀV to +ꢀ.ꢀV Supply-Voltage Input
Ma5e no connection to this pin.
Connect pins together.
voltage generated by the charge pump. Connect pins together.
Ma5e no connection to this pin.
+2V voltage generated by the charge pump
CC
8
13
C1+
C2-
V-
C1-
V+
10, 16
12, 17
13
11, 16
10, 17
14
-2V
CC
14
8
CC
11, 1ꢀ
12, 1ꢀ
C2+
Connect pins together.
MAX205E
PIN
NAME
T_OUT
R_IN
FUNCTION
1–4, 19
RS-232 Driver Outputs
RS-232 Receiver Inputs
ꢀ, 10, 13, 18, 24
6, 9, 14, 17, 23
R_OUT
T_IN
TTL/CMOS Receiver Outputs. All receivers are inactive in shutdown.
7, 8, 1ꢀ, 16, 22
TTL/CMOS Driver Inputs. Internal pull-ups to V
.
CC
11
12
20
21
GND
Ground
V
+4.7ꢀV to +ꢀ.2ꢀV Supply Voltage
Receiver Enable—active low
Shutdown Control—active high
CC
EN
SHDN
6
_______________________________________________________________________________________
1ꢀ5k EꢁD-ꢂrotected, +ꢀk Rꢁ-232 Transceivers
________________________________________________ꢂin Descriptions (continued)
MAX206E
PIN
1, 2, 3, 24
4, 16, 23
NAME
T_OUT
R_IN
FUNCTION
RS-232 Driver Outputs
RS-232 Receiver Inputs
ꢀ, 17, 22
R_OUT
T_IN
TTL/CMOS Receiver Outputs. All receivers are inactive in shutdown.
6, 7, 18, 19
TTL/CMOS Driver Inputs. Internal pull-ups to V
.
CC
8
9
GND
Ground
V
CC
+4.ꢀV to +ꢀ.ꢀV Supply Voltage
10, 12
11
C1+, C1-
V+
Terminals for positive charge-pump capacitor
+2V generated by the charge pump
CC
13, 14
1ꢀ
C2+, C2-
V-
Terminals for negative charge-pump capacitor
-2V generated by the charge pump
CC
20
21
Receiver Enable—active low
Shutdown Control—active high
EN
SHDN
MAX207E
PIN
1, 2, 3, 20, 24
4, 16, 23
NAME
T_OUT
R_IN
FUNCTION
RS-232 Driver Outputs
RS-232 Receiver Inputs
ꢀ, 17, 22
R_OUT
T_IN
TTL/CMOS Receiver Outputs. All receivers are inactive in shutdown.
6, 7, 18, 19, 21
TTL/CMOS Driver Inputs. Internal pull-ups to V
.
CC
8
9
GND
Ground
V
+4.7ꢀV to +ꢀ.2ꢀV Supply Voltage
CC
10, 12
11
C1+, C1-
V+
Terminals for positive charge-pump capacitor
+2V generated by the charge pump
CC
13, 14
1ꢀ
C2+, C2-
V-
Terminals for negative charge-pump capacitor
-2V generated by the charge pump
CC
MAX208E
PIN
1, 2, 20, 24
3, 7, 16, 23
NAME
T_OUT
R_IN
FUNCTION
RS-232 Driver Outputs
RS-232 Receiver Inputs
4, 6, 17, 22
R_OUT
T_IN
TTL/CMOS Receiver Outputs. All receivers are inactive in shutdown.
ꢀ, 18, 19, 21
TTL/CMOS Driver Inputs. Internal pull-ups to V
.
CC
8
9
GND
Ground
V
+4.ꢀV to +ꢀ.ꢀV Supply Voltage
CC
10, 12
11
C1+, C1-
V+
Terminals for positive charge-pump capacitor
+2V generated by the charge pump
CC
13, 14
1ꢀ
C2+, C2-
V-
Terminals for negative charge-pump capacitor
-2V generated by the charge pump
CC
_______________________________________________________________________________________
7
1ꢀ5k EꢁD-ꢂrotected, +ꢀk Rꢁ-232 Transceivers
________________________________________________ꢂin Descriptions (continued)
MAX211E/MAX213E/MAX241E
PIN
NAME
T_OUT
R_IN
FUNCTION
1, 2, 3, 28
RS-232 Driver Outputs
RS-232 Receiver Inputs
4, 9, 18, 23, 27
TTL/CMOS Receiver Outputs. For the MAX213E, receivers R4 and Rꢀ are active in shutdown
mode when EN = 1. For the MAX211E and MAX241E, all receivers are inactive in shutdown.
ꢀ, 8, 19, 22, 26
R_OUT
6, 7, 20, 21
10
T_IN
GND
TTL/CMOS Driver Inputs. Only the MAX211E, MAX213E, and MAX241E have internal pull-ups to V
CC.
Ground
11
12, 14
13
V
+4.ꢀV to +ꢀ.ꢀV Supply Voltage
Terminals for positive charge-pump capacitor
CC
C1+, C1-
V+
+2V
voltage generated by the charge pump
CC
1ꢀ, 16
17
C2+, C2-
V-
Terminals for negative charge-pump capacitor
-2V voltage generated by the charge pump
CC
Receiver Enable—active low (MAX211E, MAX241E)
Receiver Enable—active high (MAX213E)
EN
EN
24
2ꢀ
SHDN
SHDN
Shutdown Control—active high (MAX211E, MAX241E)
Shutdown Control—active low (MAX213E)
I
SHDN
+5.5V
+3V
EN
INPUT
0.1µF
0.1µF
*
*
0V
V
CC
C1+
C1-
C2+
C2-
V+
OUTPUT ENABLE TIME
+3.5V
0.1µF
*
0.1µF
*
MAX206E
MAX211E
MAX213E
MAX241E
V-
V
CC
RECEIVER
OUTPUT
+0.8V
+3V
0.1µF
*
C
L
= 150pF
400k
T1 TO T5
T_OUT
T_IN
+5.5V
0V
EN
INPUT
3k
R1 TO R5
+5.5V
NOTE:
R_IN
5k
OUTPUT DISABLE TIME
- 0.1V
R_OUT
EN (EN)
POLARITY OF EN
IS REVERSED
FOR THE
0V OR +5.5V
DRIVE
V
V
OH
OH
RECEIVER
OUTPUTS
+2.5V
MAX213E
R = 1kΩ
L
V
OL
SHDN (SHDN)
+5.5V (0V)
V
+ 0.1V
OL
GND
( ) ARE FOR MAX213E
CAPACITORS MAY BE
POLARIZED OR UNPOLARIZED
1µF FOR MAX241E
*
Figure 1. Shutdown-Current Test Circuit (MAX206E,
MAX211E/MAX213E/MAX241E)
Figure 2. Receiver Output Enable and Disable Timing
(MAX205E/MAX206E/MAX211E/MAX213E/MAX241E)
8
_______________________________________________________________________________________
1ꢀ5k EꢁD-ꢂrotected, +ꢀk Rꢁ-232 Transceivers
+5V
+5V
0.1µF
0.1µF
*
*
0.1µF
0.1µF
0.1µF
0.1µF
*
*
V
V
CC
CC
C1+
C1-
C2+
C2-
V+
V-
C1+
C1-
C2+
C2-
V+
V-
0.1µF
0.1µF
*
*
*
*
*
*
MAX2_ _E
MAX2_ _E
V
CC
V
CC
0.1µF
0.1µF
400k
T_
400k
T_
T_OUT
T_OUT
T_IN
T_IN
R_
2500pF
50pF
R_
3k
7k
R_IN
5k
R_IN
5k
R_OUT
EN (EN)
R_OUT
EN (EN)
0V (+5V)
0V (+5V)
0V (+5V)
0V (+5V)
SHDN (SHDN)
SHDN (SHDN)
MINIMUM SLEW-RATE TEST CIRCUIT
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
into -10V, storing the -10V on the V- output filter
capacitor, C4.
_______________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
1ꢀ5V discharges to the RS-232 inputs and outputs,
tested using the Human Body Model. When tested
according to IEC1000-4-2, they survive 85V contact-
discharges and 1ꢀ5V 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 noteboo5 computers). The
standard (non-“E”) MAX202, MAX203, MAX20ꢀ–
MAX208, MAX211, MAX213, MAX232, and MAX241 are
recommended for applications where cost is critical.
In shutdown mode, V+ is internally connected to V
by
CC
a 15Ω pull-down resistor, and V- is internally connected
to ground by a 15Ω pull up resistor.
Rꢁ-232 Drivers
= ꢀV, the typical driver output voltage swing
With V
CC
is 8V when loaded with a nominal ꢀ5Ω RS-232
receiver. The output swing is guaranteed to meet
EIA/TIA-232E and V.28 specifications that call for ꢀV
minimum output levels under worst-case conditions.
These include a 35Ω load, minimum V , and
CC
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 MAX20ꢀE–MAX208E,
MAX211E, MAX213E, and MAX241E can be left
+ꢀk to 10k Dual Charge-ꢂuꢃp
koltage Converter
The +ꢀV to 10V conversion is performed by dual
charge-pump voltage converters (Figure 4). The first
charge-pump converter uses capacitor C1 to double
the +ꢀV into +10V, storing the +10V on the output filter
capacitor, C3. The second uses C2 to invert the +10V
unconnected because 4005Ω pull up resistors to V
CC
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
1ꢀ5k EꢁD-ꢂrotected, +ꢀk Rꢁ-232 Transceivers
V+
S1
S3
S2
S4
S5
S6
C2
C1+
C2+
V
CC
GND
R -
C1
C3
I +
L
R +
L
I -
L
L
C4
S7
S8
GND
V
CC
V -
C1-
C2-
f
CLK
PART
f
(kHz)
CLK
230
230
200
200
140
30
MAX202E
MAX203E
MAX205E–208E
MAX211E/213E
MAX232E
MAX241E
Figure 4. Charge-Pump Diagram
When in low-power shutdown mode, the MAX20ꢀE/
MAX206E/MAX211E/MAX213E/MAX241E driver outputs
are turned off and draw only lea5age currents—even if
they are bac5-driven with voltages between 0V and
12V. Below -0.ꢀV in shutdown, the transmitter output is
diode-clamped to ground with a 15Ω series
impedance.
ꢁhutdown and Enable Control
(MAX20ꢀE/MAX206E/MAX211E/
MAX213E/MAX241E)
In shutdown mode, the charge pumps are turned off,
V+ is pulled down to V , V- is pulled to ground, and
CC
the transmitter outputs are disabled. This reduces
supply current typically to 1µA (1ꢀµA for the MAX213E).
The time required to exit shutdown is under 1ms, as
shown in Figure ꢀ.
Rꢁ-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/CMOS-
logic levels, as well as RS-232 levels.
Receivers
All MAX213E receivers, except R4 and Rꢀ, are put into
a high-impedance state in shutdown mode (see Tables
1a and 1b). The MAX213E’s R4 and Rꢀ receivers still
function in shutdown mode. These two awa5e-in-
shutdown receivers can monitor external activity while
maintaining minimal power consumption.
The guaranteed 0.8V input low threshold ensures that
receivers shorted to ground have a logic 1 output. The
ꢀ5Ω input resistance to ground ensures that a receiver
with its input left open will also have a logic 1 output.
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.
Receiver inputs have approximately 0.ꢀV hysteresis.
This provides clean output transitions, even with slow
rise/fall-time signals with moderate amounts of noise
and ringing.
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).
In shutdown, the MAX213E’s R4 and Rꢀ receivers have
no hysteresis.
10 ______________________________________________________________________________________
1ꢀ5k EꢁD-ꢂrotected, +ꢀk Rꢁ-232 Transceivers
The MAX213E’s receiver propagation delay is typically
0.ꢀµs 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.ꢀV hysteresis, except in shutdown,
when receivers R4 and Rꢀ have no hysteresis.
MAX211E
3V
0V
SHDN
V+
10V
5V
When entering shutdown with receivers active, R4 and
Rꢀ 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).
0V
V-
-5V
-10V
1ꢀ5k EꢁD ꢂrotection
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 1ꢀ5V 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 5eep
wor5ing without latchup, whereas competing RS-232
products can latch and must be powered down to
remove latchup.
200µs/div
Figure 5. MAX211E V+ and V- when Exiting Shutdown (0.1µF
capacitors)
Table 1a. MAX205E/MAX206E/MAX211E/
MAX241E Control Pin Configurations
OPERATION
SHDN EN
Tx
Rx
All Active
All High-Z
All High-Z
STATUS
Normal
Operation
ESD protection can be tested in various waysꢁ the
transmitter outputs and receiver inputs of this product
family are characterized for protection to the following
limits:
0
0
1
0
1
X
All Active
All Active
All High-Z
Normal
Operation
1) 1ꢀ5V using the Human Body Model
Shutdown
2) 85V using the contact-discharge method specified
in IEC1000-4-2
X = Don't Care
3) 1ꢀ5V using IEC1000-4-2’s air-gap method.
Table 1b. MAX213E Control Pin
Configurations
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.
Rx
OPERATION
SHDN EN
Tx 1–4
STATUS
Shutdown
Shutdown
1–3
4, 5
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.ꢀ5Ω resistor.
0
0
1
1
0
1
0
1
All High-Z
All High-Z
All Active
All Active
High-Z
High-Z
High-Z
High-Z
Active
Active*
High-Z
Active
Normal
Operation
Normal
Operation
*Active = active with reduced performance
______________________________________________________________________________________ 11
1ꢀ5k EꢁD-ꢂrotected, +ꢀk Rꢁ-232 Transceivers
R
1M
R 1500Ω
D
C
I 100%
P
90%
PEAK-TO-PEAK RINGING
(NOT DRAWN TO SCALE)
I
r
DISCHARGE
RESISTANCE
CHARGE-CURRENT
LIMIT RESISTOR
AMPERES
HIGH-
VOLTAGE
DC
DEVICE
UNDER
TEST
C
s
100pF
STORAGE
CAPACITOR
36.8%
SOURCE
10%
0
TIME
0
t
RL
t
DL
CURRENT WAVEFORM
Figure 6b. Human Body Model Current Waveform
Figure 6a. Human Body ESD Test Model
I
R
50M to 100M
R 330Ω
D
C
100%
90%
DISCHARGE
RESISTANCE
CHARGE CURRENT
LIMIT RESISTOR
HIGH-
VOLTAGE
DC
DEVICE
UNDER
TEST
C
s
150pF
STORAGE
CAPACITOR
SOURCE
10%
Figure 7a. IEC1000-4-2 ESD Test Model
t
t = 0.7ns to 1ns
r
30ns
60ns
IEC1000-4-2
The IEC1000-4-2 standard covers ESD testing and
performance of finished equipmentꢁ 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.
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.
The major difference between tests done using the
Human Body Model and IEC1000-4-2 is higher pea5
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 85V IEC1000-4-2 level-four ESD contact-discharge
test.
12 ______________________________________________________________________________________
1ꢀ5k EꢁD-ꢂrotected, +ꢀk Rꢁ-232 Transceivers
k+ and k- as ꢂower ꢁupplies
A small amount of power can be drawn from V+ and V-,
__________Applications Inforꢃation
Capacitor ꢁelection
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, ma5e 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-.
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 ꢁhutdown
The driver outputs display no ringing or undesirable
transients as they come out of shutdown.
High Data Rates
These transceivers maintain the RS-232 ꢀ.0V
minimum driver output voltages at data rates of over
1205bps. For data rates above 1205bps, 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 smallꢁ i.e.,
short cables are best.
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
MAX20ꢀE have internal charge-pump capacitors.
Bypass V
to ground with at least 0.1µF. In
CC
applications sensitive to power-supply noise generated
by the charge pumps, decouple V to ground with a
CC
capacitor the same size as (or larger than) the charge-
pump capacitors (C1–C4).
Table 2. Summary of EIA/TIA-232E, V.28 Specifications
EIA/TIA-232E, V.28
SPECIFICATIONS
PARAMETER
CONDITIONS
35Ω to 75Ω load
0 Level
+ꢀV to +1ꢀV
Driver Output Voltage
1 Level
35Ω to 75Ω load
-ꢀV to -1ꢀV
2ꢀV
Driver Output Level, Max
Data Rate
No load
35Ω ≤ R ≤ 75Ω, C ≤ 2ꢀ00pF
Up to 205bps
+3V to +1ꢀV
-3V to -1ꢀV
2ꢀV
L
L
0 Level
1 Level
Receiver Input Voltage
Receiver Input Level
Instantaneous Slew Rate, Max
35Ω ≤ R ≤ 75Ω, C ≤ 2ꢀ00pF
30V/µs
L
L
Driver Output Short-Circuit Current, Max
100mA
V.28
EIA/TIA-232E
-2V < V < +2V
1ms or 3% of the period
4% of the period
300Ω
Transition Rate on Driver Output
Driver Output Resistance
OUT
______________________________________________________________________________________ 13
1ꢀ5k EꢁD-ꢂrotected, +ꢀk Rꢁ-232 Transceivers
Table 3. DB9 Cable Connections
Commonly Used for EIA/TIAE-232E and
V.24 Asynchronous Interfaces
PIN
CONNECTION
Received Line Signal
Detector (sometimes
called Carrier Detect,
DCD)
1
Handsha5e from DCE
2
3
4
Receive Data (RD)
Transmit Data (TD)
Data Terminal Ready
Data from DCE
Data from DTE
Handsha5e from DTE
Reference point for
signals
ꢀ
Signal Ground
6
7
8
9
Data Set Ready (DSR)
Request to Send (RTS)
Clear to Send (CTS)
Ring Indicator
Handsha5e from DCE
Handsha5e from DTE
Handsha5e from DCE
Handsha5e from DCE
____________ꢂin Configurations and Typical Operating Circuits (continued)
+5V INPUT
TOP VIEW
0.1µF*
6.3V
0.1µF
16
V
CC
1
2
6
+10V
-10V
C1+
V+
V-
0.1µF*
6.3V
+5V TO +10V
VOLTAGE DOUBLER
3
4
C1-
C2+
C1+
+10V TO -10V
VOLTAGE INVERTER
V
0.1µF*
1
2
3
4
5
6
7
8
CC
0.1µF*
16V
16
15
14
13
12
11
10
9
5
C2-
16V
GND
V+
C1-
T1OUT
R1IN
11
14
T1IN
T1OUT
T1
T2
C2+
C2-
MAX202E
MAX232E
TTL/CMOS
INPUTS
RS-232
OUTPUTS
R1OUT
T1IN
T2IN
T2OUT
R1IN
7
V-
10
12
T2OUT
R2IN
T2IN
R1OUT
13
R2OUT
R1
R2
TTL/CMOS
OUTPUTS
RS-232
INPUTS
5k
5k
DIP/SO/TSSOP
R2IN
9
R2OUT
8
GND
15
PIN NUMBERS ON TYPICAL OPERATING CIRCUIT REFER TO DIP/SO/TSSOP PACKAGE, NOT LCC.
* 1.0µF CAPACITORS, MAX232E ONLY.
14 ______________________________________________________________________________________
1ꢀ5k EꢁD-ꢂrotected, +ꢀk Rꢁ-232 Transceivers
____________ꢂin Configurations and Typical Operating Circuits (continued)
+5V INPUT
TOP VIEW
0.1µF
7
V
CC
+5V
+5V
400k
400k
T1OUT
T2OUT
2
T1IN
T2IN
5
T1
T2
R2OUT
R2IN
T2IN
T1IN
1
2
20
19
18
17
16
15
14
13
12
11
TTL/CMOS
INPUTS
RS-232
OUTPUTS
R1OUT
R1IN
T2OUT
V-
3
18
4
1
3
4
R1OUT
R2OUT
R1IN
5k
MAX203E
R1
R2
T1OUT
C2-
5
TTL/CMOS
OUTPUTS
RS-232
INPUTS
GND
C2+
6
R2IN
5k
V
CC
V+ (C1-)
20
19
7
C1+ (V+)
GND
C1- (C1+)
V- (C2+)
8
9
8(13)
DO NOT MAKE
CONNECTION TO
THESE PINS
(12)
11
15
C2+
C2+
C2-
C2-
C1+
C1-
V-
C2+ (C2-)
C2- (V-)
10
13(14)
12(10)
17
16
INTERNAL -10V
POWER SUPPLY
DIP/SO
10 (11)
V-
INTERNAL +10V
POWER SUPPLY
14(8)
V+
GND
GND
6
9
PIN NUMBERS IN ( ) ARE FOR SO PACKAGE.
______________________________________________________________________________________ 15
1ꢀ5k EꢁD-ꢂrotected, +ꢀk Rꢁ-232 Transceivers
____________ꢂin Configurations and Typical Operating Circuits (continued)
+5V INPUT
0.1µF
TOP VIEW
12
V
CC
+5V
400k
T1
400k
T2
400k
T3
400k
T4
400k
T5
T1OUT
T2OUT
T3OUT
T4OUT
T5OUT
T1IN
8
7
3
4
2
1
+5V
T2IN
+5V
T4OUT
T3OUT
T1OUT
T2OUT
R2IN
1
2
3
4
5
6
7
8
9
24 R3IN
23 R3OUT
22 T5IN
21 SHDN
20 EN
T3IN
RS-232
OUTPUTS
15
16
TTL/CMOS
INPUTS
+5V
T4IN
+5V
R2OUT
T2IN
19 T5OUT
18 R4IN
17 R4OUT
16 T4IN
15 T3IN
14 R5OUT
13 R5IN
MAX205E
T5IN
22
9
19
10
T1IN
R1OUT
R2OUT
R3OUT
R1IN
5k
R1
R1OUT
R1IN 10
GND 11
6
5
R2IN
5k
R2
R3
R4
V
CC
12
DIP
RS-232
INPUTS
23
24
18
R3IN
5k
TTL/CMOS
OUTPUTS
17 R4OUT
14 R5OUT
20 EN
R4IN
5k
13
21
R5IN
5k
R5
SHDN
GND
11
16 ______________________________________________________________________________________
1ꢀ5k EꢁD-ꢂrotected, +ꢀk Rꢁ-232 Transceivers
____________ꢂin Configurations and Typical Operating Circuits (continued)
TOP VIEW
+5V INPUT
9
0.1µF
6.3V
0.1µF
10
V
CC
11
15
C1+
V+
V-
+5V TO +10V
VOLTAGE DOUBLER
0.1µF
6.3V
12
13
0.1µF
16V
C1-
C2+
+10V TO -10V
VOLTAGE INVERTER
0.1µF
16V
14
C2-
+5V
400k
T1
T3OUT
T1OUT
T2OUT
R1IN
1
2
3
4
5
6
7
8
9
24 T4OUT
23 R2IN
22 R2OUT
21 SHDN
20 EN
T1OUT
T2OUT
T3OUT
T4OUT
T1IN
+5V
2
3
1
7
400k
T2
T2IN
6
R1OUT
T2IN
+5V
RS-232
OUTPUTS
TTL/CMOS
INPUTS
400k
T3
19 T4IN
18 T3IN
17 R3OUT
16 R3IN
15 V-
MAX206E
18
T3IN
+5V
T1IN
GND
400k
T4
V
CC
19
5
T4IN
24
4
C1+ 10
V+ 11
14 C2-
R1OUT
R1IN
5k
R1
R2
R3
C1- 12
13 C2+
DIP/SO/SSOP
R2OUT
R3OUT
22
17
23
16
RS-232
INPUTS
R2IN
5k
TTL/CMOS
OUTPUTS
R3IN
5k
20 EN
21
SHDN
GND
8
______________________________________________________________________________________ 17
1ꢀ5k EꢁD-ꢂrotected, +ꢀk Rꢁ-232 Transceivers
____________ꢂin Configurations and Typical Operating Circuits (continued)
+5V INPUT
0.1µF
6.3V
TOP VIEW
0.1µF
9
V
CC
10
11
15
C1+
V+
V-
+5V TO +10V
VOLTAGE DOUBLER
0.1µF
6.3V
12
13
0.1µF
16V
C1-
C2+
+10V TO -10V
VOLTAGE INVERTER
0.1µF
16V
14
C2-
+5V
400k
T1
T1OUT
T2OUT
T3OUT
T4OUT
T5OUT
T1IN
2
3
7
6
+5V
400k
T2
T3OUT
1
2
3
4
5
6
7
8
9
24 T4OUT
23 R2IN
22 R2OUT
21 T5IN
20 T5OUT
19 T4IN
18 T3IN
17 R3OUT
16 R3IN
15 V-
T2IN
+5V
T1OUT
T2OUT
R1IN
400k
T3
T3IN
TTL/CMOS
18
19
1
RS-232
INPUTS
OUTPUTS
R1OUT
T2IN
+5V
400k
T4
MAX207E
T4IN
+5V
24
T1IN
GND
400k
T5
V
CC
T5IN
21
5
20
4
C1+ 10
V+ 11
R1OUT
14 C2-
R1IN
5k
R1
R2
R3
C1- 12
13 C2+
DIP/SO/SSOP
R2OUT
R3OUT
22
17
23
16
RS-232
INPUTS
R2IN
5k
TTL/CMOS
OUTPUTS
R3IN
5k
GND
8
18 ______________________________________________________________________________________
1ꢀ5k EꢁD-ꢂrotected, +ꢀk Rꢁ-232 Transceivers
____________ꢂin Configurations and Typical Operating Circuits (continued)
TOP VIEW
+5V INPUT
9
0.1µF
6.3V
0.1µF
10
V
CC
11
15
C1+
V+
V-
+5V TO +10V
VOLTAGE DOUBLER
0.1µF
6.3V
12
13
0.1µF
16V
C1-
C2+
+10V TO -10V
VOLTAGE INVERTER
0.1µF
16V
14
C2-
+5V
400k
T1
T1IN
+5V
T1OUT
T2OUT
T3OUT
T4OUT
5
2
T2OUT
T1OUT
R2IN
1
2
3
4
5
6
7
8
9
24 T3OUT
23 R3IN
22 R3OUT
21 T4IN
20 T4OUT
19 T3IN
18 T2IN
17 R4OUT
16 R4IN
15 V-
400k
T2
T2IN
18
19
1
+5V
RS-232
TTL/CMOS
R2OUT
T1IN
400k
T3
OUTPUTS
INPUTS
T3IN
+5V
24
R1OUT
R1IN
MAX208E
400k
T4
T4IN
21
6
20
7
GND
V
CC
R1OUT
R1IN
5k
R1
R2
R3
R4
C1+ 10
V+ 11
14 C2-
C1- 12
13 C2+
R2OUT
R3OUT
R4OUT
4
22
17
3
R2IN
5k
DIP/SO/SSOP
TTL/CMOS
OUTPUTS
RS-232
INPUTS
23
16
R3IN
5k
R4IN
5k
GND
8
______________________________________________________________________________________ 19
1ꢀ5k EꢁD-ꢂrotected, +ꢀk Rꢁ-232 Transceivers
____________ꢂin Configurations and Typical Operating Circuits (continued)
+5V INPUT
0.1µF
6.3V
*
TOP VIEW
0.1µF
11
12
13
17
V
CC
C1+
V+
V-
+5V TO +10V
VOLTAGE DOUBLER
0.1µF
6.3V
*
14
15
0.1µF
16V
C1-
C2+
*
+10V TO -10V
VOLTAGE INVERTER
0.1µF
16V
*
16
C2-
+5V
400k
T1
T1OUT
T2OUT
T3OUT
T4OUT
T1IN
7
6
2
3
1
+5V
400k
T2
T3OUT
T1OUT
T2OUT
R2IN
1
2
3
4
5
6
7
8
9
28 T4OUT
27 R3IN
T2IN
+5V
RS-232
OUTPUTS
TTL/CMOS
INPUTS
400k
T3
26 R3OUT
25 SHDN (SHDN)
24 EN (EN)
23 R4IN
T3IN
20
+5V
R2OUT
T2IN
400k
T4
MAX211E
MAX213E
MAX241E
T4IN
21
8
28
9
T1IN
22 R4OUT
21 T4IN
R1OUT
R1IN
R1OUT
R1IN
5k
R1
R2
R3
R4
20 T3IN
GND 10
11
19 R5OUT
18 R5IN
V
CC
R2OUT
R3OUT
5
4
R2IN
5k
C1+ 12
V+ 13
17 V-
16 C2-
C1- 14
15 C2+
RS-232
INPUTS
26
27
23
R3IN
TTL/CMOS
OUTPUTS
SO/SSOP
5k
22 R4OUT
19 R5OUT
24 EN (EN)
R4IN
5k
18
25
R5IN
5k
R5
( ) ARE FOR MAX213E ONLY
1.0µF CAPACITORS, MAX241E ONLY
*
SHDN (SHDN)
GND
10
20 ______________________________________________________________________________________
1ꢀ5k EꢁD-ꢂrotected, +ꢀk Rꢁ-232 Transceivers
________________________________________________________Ordering Inforꢃation
PART
TEMP RANGE
0°C to +70°C
0°C to +70°C
0°C to +70°C
-40°C to +8ꢀ°C
-40°C to +8ꢀ°C
-40°C to +8ꢀ°C
0°C to +70°C
0°C to +70°C
-40°C to +8ꢀ°C
-40°C to +8ꢀ°C
0°C to +70°C
0°C to +70°C
-40°C to +8ꢀ°C
-40°C to +8ꢀ°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
-40°C to +8ꢀ°C
-40°C to +8ꢀ°C
-40°C to +8ꢀ°C
0°C to +70°C
0°C to +70°C
-40°C to +8ꢀ°C
-40°C to +8ꢀ°C
PIN-PACKAGE
24 Narrow Plastic DIP
24 SO
PART
TEMP RANGE
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
-40°C to +8ꢀ°C
-40°C to +8ꢀ°C
-40°C to +8ꢀ°C
-40°C to +8ꢀ°C
0°C to +70°C
0°C to +70°C
-40°C to +8ꢀ°C
-40°C to +8ꢀ°C
0°C to +70°C
-40°C to +8ꢀ°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
-40°C to +8ꢀ°C
-40°C to +8ꢀ°C
-40°C to +8ꢀ°C
0°C to +70°C
0°C to +70°C
0°C to +70°C
-40°C to +8ꢀ°C
-40°C to +8ꢀ°C
-40°C to +8ꢀ°C
PIN-PACKAGE
16 Plastic DIP
16 Narrow SO
16 TSSOP
MAX208ECNG
MAX208ECWG
MAX208ECAG
MAX208EENG
MAX208EEWG
MAX208EEAG
MAX211ECWI
MAX211ECAI
MAX211EEWI
MAX211EEAI
MAX213ECWI
MAX213ECAI
MAX213EEWI
MAX213EEAI
MAX232ECPE
MAX232ECSE
MAX232ECWE
MAX232EC/D
MAX232EEPE
MAX232EESE
MAX232EEWE
MAX241ECWI
MAX241ECAI
MAX241EEWI
MAX241EEAI
MAX202ECPE
MAX202ECSE
MAX202ECUE
MAX202ECWE
MAX202EC/D
MAX202EEPE
MAX202EESE
MAX202EEUE
MAX202EEWE
MAX203ECPP
MAX203ECWP
MAX203EEPP
MAX203EEWP
MAX205ECPG
MAX20ꢀEEPG
MAX206ECNG
MAX206ECWG
MAX206ECAG
MAX206EENG
MAX206EEWG
MAX206EEAG
MAX207ECNG
MAX207ECWG
MAX207ECAG
MAX207EENG
MAX207EEWG
MAX207EEAG
24 SSOP
24 Narrow Plastic DIP
24 SO
16 Wide SO
Dice*
24 SSOP
16 Plastic DIP
16 Narrow SO
16 TSSOP
28 SO
28 SSOP
28 SO
16 Wide SO
20 Plastic DIP
20 SO
28 SSOP
28 SO
28 SSOP
20 Plastic DIP
20 SO
28 SO
28 SSOP
24 Wide Plastic DIP
24 Wide Plastic DIP
24 Narrow Plastic DIP
24 SO
16 Plastic DIP
16 Narrow SO
16 Wide SO
Dice*
24 SSOP
16 Plastic DIP
16 Narrow SO
16 Wide SO
28 SO
24 Narrow Plastic DIP
24 SO
24 SSOP
24 Narrow Plastic DIP
24 SO
28 SSOP
28 SO
24 SSOP
28 SSOP
24 Narrow Plastic DIP
24 SO
*Dice are specified at T = +25°C.
A
24 SSOP
______________________________________________________________________________________ 21
1ꢀ5k EꢁD-ꢂrotected, +ꢀk Rꢁ-232 Transceivers
__________________________________________________________Chip Topographies
MAX202E/MAX232E
MAX211E/MAX213E/MAX241E
T1OUT
T2OUT T3OUT
T4OUT
R3IN
V
V+ C1+
GND
CC
R3OUT
C1-
C2+
SHDN (SHDN)
R2IN
C2-
V-
R2OUT
T2IN
0.174"
(4.420mm)
T1OUT
R1IN
EN (EN)
R4IN
T1IN
R1OUT
0.117"
(2.972mm)
R1IN
GND
R4OUT
T4IN
T3IN
R5OUT
R1OUT
T1IN
R5IN
V
C1+
C1-
C2-
V-
CC
R2IN
T2IN
R2OUT
T2OUT
V+
C2+
0.188"
(4.775mm)
0.080"
(2.032mm)
( ) ARE FOR MAX213E ONLY
TRANSISTOR COUNT: 123
SUBSTRATE CONNECTED TO GND
TRANSISTOR COUNT: ꢀ42
SUBSTRATE CONNECTED TO GND
___________________Chip Inforꢃation
MAX205E/MAX206E/MAX207E/MAX208E
TRANSISTOR COUNT: 328
SUBSTRATE CONNECTED TO GND
22 ______________________________________________________________________________________
1ꢀ5k EꢁD-ꢂrotected, +ꢀk Rꢁ-232 Transceivers
ꢂac5age Inforꢃation
(The pac5age drawing(s) in this data sheet may not reflect the most current specifications. For the latest pac5age outline information,
go to www.maxim-ic.com/packages.)
______________________________________________________________________________________ 23
1ꢀ5k EꢁD-ꢂrotected, +ꢀk Rꢁ-232 Transceivers
ꢂac5age Inforꢃation (continued)
(The pac5age drawing(s) in this data sheet may not reflect the most current specifications. For the latest pac5age outline information,
go to www.maxim-ic.com/packages.)
2
1
INCHES
MILLIMETERS
MAX
MAX
1.99
0.21
0.38
0.20
DIM
A
MIN
0.068
MIN
1.73
0.05
0.25
0.09
INCHES
MAX
MILLIMETERS
MAX
6.33
6.33
7.33
MIN
MIN
6.07
6.07
7.07
8.07
N
0.078
14L
16L
20L
A1
B
D
D
D
D
D
0.239 0.249
0.239 0.249
0.278 0.289
0.317 0.328
0.002 0.008
0.010 0.015
0.004 0.008
C
8.33 24L
E
H
SEE VARIATIONS
0.205 0.212 5.20
0.0256 BSC
D
0.397 0.407 10.07 10.33
28L
E
5.38
e
0.65 BSC
H
0.301 0.311 7.65
0.025 0.037 0.63
7.90
0.95
8∞
L
0∞
8∞
0∞
N
A
C
B
L
e
A1
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.
PROPRIETARY INFORMATION
TITLE:
PACKAGE OUTLINE, SSOP, 5.3 MM
APPROVAL
DOCUMENT CONTROL NO.
REV.
5. LEADS TO BE COPLANAR WITHIN 0.10 MM.
1
21-0056
C
1
24 ______________________________________________________________________________________
1ꢀ5k EꢁD-ꢂrotected, +ꢀk Rꢁ-232 Transceivers
ꢂac5age Inforꢃation (continued)
(The pac5age drawing(s) in this data sheet may not reflect the most current specifications. For the latest pac5age outline information,
go to www.maxim-ic.com/packages.)
INCHES
MILLIMETERS
N
DIM
A
MIN
MAX
0.104
0.012
0.019
0.013
MIN
2.35
0.10
0.35
0.23
MAX
2.65
0.30
0.49
0.32
0.093
0.004
0.014
0.009
A1
B
C
e
0.050
1.27
E
H
E
0.291
0.394
0.016
0.299
0.419
0.050
7.40
10.00
0.40
7.60
10.65
1.27
H
L
VARIATIONS:
INCHES
1
MILLIMETERS
TOP VIEW
DIM
D
MIN
MAX
0.413
0.463
0.512
0.614
0.713
MIN
10.10
11.35
12.60
15.20
17.70
MAX
N MS013
0.398
0.447
0.496
0.598
0.697
10.50 16 AA
11.75 18 AB
13.00 20 AC
15.60 24 AD
18.10 28 AE
D
D
D
D
D
C
A
B
e
0∞-8∞
A1
L
FRONT VIEW
SIDE VIEW
PROPRIETARY INFORMATION
TITLE:
PACKAGE OUTLINE, .300" SOIC
APPROVAL
DOCUMENT CONTROL NO.
REV.
1
21-0042
B
1
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.
Maxiꢃ Integrated ꢂroducts, 120 ꢁan Gabriel Drive, ꢁunnyvale, CA 94086 (408) 737-7600 ___________________25
© 2003 Maxim Integrated Products
Printed USA
is a registered trademar5 of Maxim Integrated Products.
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