MAX220–MAX249
+5V-Powered, Multichannel
RS-232 Drivers/Receivers
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
All except MAX220/MAX243, V
CC
= +5V, no
hysteresis in shutdown
RS-232 Input Hysteresis
MAX220
MAX243
RS-232 Input Resistance
TTL/CMOS Output Voltage Low
TTL/CMOS Output Voltage High
TTL/CMOS Output Short-Circuit Current
TTL/CMOS Output Leakage Current
EN Input Threshold Low
EN Input Threshold High
Supply Voltage Range
MAX220
No load
V
CC
Supply Current (V
SHDN
= V
CC
),
Figures 5, 6, 11, 19
3k load
both inputs
MAX222/MAX232A/MAX233A/
MAX242/MAX243
MAX220
MAX222/MAX232A/MAX233A/
MAX242/MAX243
T
A
= +25°C
Shutdown Supply Current
MAX222/
MAX242
T
A
= 0°C to +70°C
T
A
= -40°C to +85°C
T
A
= -55°C to +125°C
SHDN
Input Leakage Current
SHDN
Threshold Low
SHDN
Threshold High
MAX222/MAX242
MAX222/MAX242
MAX222/MAX242
C
L
= 50pF to 2500pF,
MAX222/MAX232A/
R
L
= 3k to 7k ,
MAX233/MAX242/MAX243
V
CC
= +5V, T
A
=
+25°C, measured
from +3V to -3V or MAX220
-3V to +3V
t
PHLT
, Figure 1
Transmitter Propagation Delay TLL to
RS-232 (Normal Operation)
t
PLHT
, Figure 1
MAX222/MAX232A/
MAX233/MAX242/MAX243
MAX220
MAX222/MAX232A/
MAX233/MAX242/MAX243
MAX220
www.maximintegrated.com
MIN
0.2
TYP
0.5
0.3
1
MAX
1.0
UNITS
V
T
A
= +25°C (MAX220)
I
OUT
= 3.2mA
I
OUT
= 1.6mA (MAX220)
I
OUT
= -1.0mA
Sourcing V
OUT
= V
GND
Sinking V
OUT
= V
CC
V
SHDN
= V
CC
or V
EN
= V
CC
(V
SHDN
= 0V for
MAX222), 0V V
OUT
V
CC
MAX242
MAX242
3
3
5
5
0.2
7
7
0.4
0.4
k
V
V
mA
3.5
-2
10
V
CC
- 0.2
-10
30
±0.05
1.4
±10
0.8
5.5
0.5
4
12
15
0.1
2
2
35
1.4
10
50
50
100
±1
0.8
2
10
μA
V
V
V
2.0
4.5
1.4
mA
μA
μA
V
V
2.0
6
1.4
12
30
Transition Slew Rate
V/μs
1.5
3
30.0
1.3
4
1.5
5
3.5
10
3.5
10
Maxim Integrated | 3
μs
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
