Maxim Integrated | 4www.maximintegrated.com
MAX220–MAX249
+5V-Powered, Multichannel
RS-232 Drivers/Receivers
Typical Operating Characteristics
MAX220/MAX222/MAX232A/MAX233A/MAX242/MAX243
10
8
-10
0 5 15 25
OUTPUT VOLTAGE vs. LOAD CURRENT
-4
-6
-8
-2
6
4
2
MAX220-01
LOAD CURRENT (mA)
OUTPUT VOLTAGE (V)
10
0
20
0.1μF
EITHER V+ OR V- LOADED
V
CC
= +5V
NO LOAD ON
TRANSMITTER OUTPUTS
(EXCEPT MAX220, MAX233A)
V- LOADED, NO LOAD ON V+
V+ LOADED, NO LOAD ON V-
1μF
1μF
0.1μF
11
10
4
010 40 60
AVAILABLE OUTPUT CURRENT
vs. DATA RATE
6
5
7
9
8
MAX220-02
DATA RATE (kb/s)
OUTPUT CURRENT (mA)
20 30 50
OUTPUT LOAD CURRENT
FLOWS FROM V+ TO V-
V
CC
= +5.25V
ALL CAPS
1μF
ALL CAPS
0.1μF
V
CC
= +4.75V
+10V
-10V
MAX222/MAX242
ON-TIME EXITING SHUTDOWN
+5V
+5V
0V
0V
MAX220-03
500μs/div
V+, V- VOLTAGE (V)
1μF CAPS
V+
V+
V-
V-
SHDN
0.1μF CAPS
1μF CAPS
0.1μF CAPS
Electrical Characteristics—MAX220/222/232A/233A/242/243 (continued)
(V
CC
= +5V ±10%, C1–C4 = 0.1µF‚ MAX220, C1 = 0.047µF, C2–C4 = 0.33µF, T
A
= T
MIN
to T
MAX
‚ unless otherwise noted.) (Note 3)
PARAMETER CONDITIONS MIN TYP MAX UNITS
MAX222/MAX232A/MAX233/
MAX242/MAX243
0.5 1
t
PHLR
, Figure 2
MAX220 0.6 3
MAX222/MAX232A/MAX233/
MAX242/MAX243
0.6 1
Receiver Propagation Delay RS-232 to
TLL (Normal Operation)
t
PLHR
, Figure 2
MAX220 0.8 3
μs
t
PHLS
, Figure 2 MAX242 0.5 10
Receiver Propagation Delay RS-232 to
TLL (Shutdown)
t
PHLS
, Figure 2 MAX242 2.5 10
μs
Receiver-Output Enable Time t
ER
MAX242, Figure 3 125 500 ns
Receiver-Output Disable Time t
DR
MAX242, Figure 3 160 500 ns
Transmitter-Output Enable Time
(SHDN Goes High)
t
ET
MAX222/MAX242, 0.F
caps (includes charge-pump
start-up), Figure 4
250 μs
Transmitter-Output Disable Time
(SHDN Goes Low)
t
DT
MAX222/MAX242,
0.1μF caps, Figure 4
600 ns
MAX222/MAX232A/MAX233/
MAX242/MAX243
300
Transmitter + to - Propagation Delay
Difference (Normal Operation)
t
PHLT
- t
PLHT
MAX220 2000
ns
MAX222/MAX232A/MAX233/
MAX242/MAX243
100
Receiver + to - Propagation Delay
Difference (Normal Operation)
t
PHLR
- t
PLHR
MAX220 225
ns
Note 3: All units are production tested at hot. Specifications over temperature are guaranteed by design.
Note 4: MAX243 R2OUT is guaranteed to be low when R2IN 0V or is unconnected.
(Voltages referenced to GND.)
V
CC
...........................................................................-0.3V to +6V
V+ ................................................................(V
CC
- 0.3V) to +14V
V- ............................................................................+0.3V to -14V
Input Voltages
TIN ............................................................-0.3V to (V
CC
+ 0.3V)
RIN .....................................................................................±30V
Output Voltages
TOUT ..................................................(V+ + 0.3V) to (V- - 0.3V)
ROUT........................................................-0.3V to (V
CC
+ 0.3V)
Short-Circuit Duration, TOUT to GND ........................Continuous
Continuous Power Dissipation (T
A
= +70°C)
14-Pin Plastic DIP (derate 10.00mW/°C above +70°C)....800mW
16-Pin Plastic DIP (derate 10.53mW/°C above +70°C)....842mW
20-Pin Plastic DIP (derate 11.11mW/°C above +70°C)....889mW
24-Pin Narrow Plastic DIP
(derate 13.33mW/°C above +70°C) ..........1.07W
24-Pin Plastic DIP (derate 9.09mW/°C above +70°C)......500mW
16-Pin Wide SO (derate 9.52mW/°C above +70°C).........762mW
20-Pin Wide SO (derate 10.00mW/°C above +70°C).......800mW
24-Pin Wide SO (derate 11.76mW/°C above +70°C).......941mW
28-Pin Wide SO (derate 12.50mW/°C above +70°C) .............1W
44-Pin Plastic FP (derate 11.11mW/°C above +70°C) .....889mW
14-Pin CERDIP (derate 9.09mW/°C above +70°C) ..........727mW
16-Pin CERDIP (derate 10.00mW/°C above +70°C) ........800mW
20-Pin CERDIP (derate 11.11mW/°C above +70°C) ........889mW
24-Pin Narrow CERDIP
(derate 12.50mW/°C above +70°C) ..............1W
24-Pin Sidebraze (derate 20.0mW/°C above +70°C)..........1.6W
28-Pin SSOP (derate 9.52mW/°C above +70°C).............762mW
Operating Temperature Ranges
MAX2 _ _ C _ _......................................................0°C to +70°C
MAX2 _ _ E _ _ ...................................................-40°C to +85°C
MAX2 _ _ M _ _......................................................-55°C to +125°C
Storage Temperature Range .............................-65°C to +160°C
Lead Temperature (soldering, 10s) .................................+300°C
Soldering Temperature (reflow)
20 PDIP (P20M+1) .........................................................+225°C
24 PDIP (P24M-1) ..........................................................+225°C
All other lead(Pb)-free packages...................................+260°C
All other packages containing lead(Pb) ...........................+240°C
MAX220–MAX249
+5V-Powered, Multichannel
RS-232 Drivers/Receivers
Maxim Integrated | 5www.maximintegrated.com
Absolute Maximum Ratings—MAX223/MAX230–MAX241
Electrical Characteristics—MAX223/MAX230–MAX241
(MAX223/230/232/234/236/237/238/240/241, V
CC
= +5V ±10%; MAX233/MAX235, V
CC
= +5V ±5%‚ C1–C4 = 1.0µF;
MAX231/MAX239, V
CC
= +5V ±10%; V+ = +7.5V to +13.2V; T
A
= T
MIN
to T
MAX
; unless otherwise noted.) (Note 5)
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.
CONDITIONS
MIN TYP MAX
UNITS
Output Voltage Swing All transmitter outputs loaded with 3kΩ to ground ±5.0 ±7.3 V
V
CC
Supply Current
No load,
T
A
= +25°C
510
mA
715
0.4 1
V+ Supply Current
1.8 5
mA
515
Shutdown Supply Current T
A
= +25°C
15 50
VInput Logic-High Voltage
TIN 2.0
EN, SHDN (MAX223);
EN, SHDN (MAX230/235/236/240/241)
2.4
Logic Pullup Current V
TIN
=0V 1.5 200
Receiver Input Voltage
Operating Range
-30 +30 V
µA
µA
110
VInput Logic-Low Voltage
TIN, EN, SHDN (MAX233); EN, SHDN (MAX230/235–241)
0.8
MAX231/239
MAX223/230/234–238/240/241
MAX232/233
PARAMETER
MAX239
MAX230/235/236/240/241
MAX231
MAX223
Maxim Integrated | 6www.maximintegrated.com
MAX220–MAX249
+5V-Powered, Multichannel
RS-232 Drivers/Receivers
mA
V
0.8 1.2
PARAMETER MIN TYP MAX UNITSCONDITIONS
Normal operation
V
SHDN
= 5V (MAX223)
V
SHDN
= 0V (MAX235/236/240/241)
1.7 2.4
RS-232 Input Logic-Low Voltage
T
A
= +25°C,
V
CC
= +5V
0.6 1.5
VRS-232 Input Logic-High Voltage
T
A
= +25°C,
V
CC
= +5V
Shutdown (MAX223)
V
SHDN
= 0V,
V
EN
= +5V (R4IN‚ R5IN)
1.5 2.4
Electrical Characteristics—MAX223/MAX230–MAX241 (continued)
(MAX223/230/232/234/236/237/238/240/241, V
CC
= +5V ±10%; MAX233/MAX235, V
CC
= +5V ±5%‚ C1–C4 = 1.0µF;
MAX231/MAX239, V
CC
= +5V ±10%; V+ = +7.5V to +13.2V; T
A
= T
MIN
to T
MAX
; unless otherwise noted.) (Note 5)
Shutdown (MAX223)
V
SHDN
= 0V,
V
EN
= +5V (R4IN, R5IN)
Normal operation
V
SHDN
= +5V (MAX223)
V
SHDN
= 0V (MAX235/236/240/241)
RS-232 Input Hysteresis V
CC
= +5V, no hysteresis in shutdown 0.2 0.5 1.0 V
RS-232 Input Resistance T
A
= +25°C, V
CC
= +5V 357kΩ
TTL/CMOS Output Voltage Low I
OUT
= 1.6mA (MAX231/232/233, I
OUT
= 3.2mA) 0.4 V
TTL/CMOS Output Voltage High I
OUT
= -1mA 3.5 V
CC
- 0.4 V
TTL/CMOS Output Leakage Current
0V R
OUT
V
CC
; V
EN
= 0V (MAX223);
V
EN
= V
CC
(MAX235–241)
±0.05 ±10 µA
MAX223 600
nsReceiver Output Enable Time
Normal
operation
MAX235/236/239/240/241 400
MAX223 900
nsReceiver Output Disable Time
Normal
operation
MAX235/236/239/240/241 250
Normal operation 0.5 10
µs
V
SHDN
= 0V
(MAX223)
440
Propagation Delay
RS-232 IN to
TTL/CMOS OUT,
C
L
= 150pF
640
3 5.1 30
V/µs
MAX231/MAX232/MAX233, T
A
= +25°C, V
CC
= +5V,
R
L
= 3kΩ to 7kΩ, C
L
= 50pF to 2500pF, measured from
+3V to -3V or -3V to +3V
430
Transmitter Output Resistance V
CC
= V+ = V- = 0V, V
OUT
= ±2V 300 Ω
Transmitter Output Short-Circuit
Current
±10 mA
t
PHLS
t
PLHS
Transition Region Slew Rate
MAX223/MAX230/MAX234–241, T
A
= +25°C, V
CC
= +5V,
R
L
= 3kΩ to 7kΩ‚ C
L
= 50pF to 2500pF, measured from
+3V to -3V or -3V to +3V
Note 5: All units are production tested at hot except for the MAX240, which is production tested at T
A
= +25°C. Specifications over
temperature are guaranteed by design.

MAX232MJE

Mfr. #:
Manufacturer:
Maxim Integrated
Description:
MULTICHANNEL RS-232 DRIVERS/RECE
Lifecycle:
New from this manufacturer.
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