MAX220–MAX249
+5V-Powered, Multichannel RS-232
Drivers/Receivers
ELECTRICAL CHARACTERISTICS—MAX220/222/232A/233A/242/243 (continued)
(V
CC
= +5V ±±0ꢀ, C±–C4 = 0.±µꢁF MAX220, C± = 0.047µꢁ, C2–C4 = 0.33µꢁ, T = T
to T
F unless otherwise noted.) (Note 3)
MAX
A
MIN
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
All except MAX220/MAX243, V = +±V, no
CC
hysteresis in shutdown
0.2
0.±
1.0
RS-232 Input Hysteresis
RS-232 Input Resistance
V
MAX220
0.3
1
MAX243
3
3
±
ꢁ
T
A
= +2±°C (MAX220)
kꢁ
±
ꢁ
I
I
I
= 3.2mA
0.2
0.4
0.4
OUT
OUT
OUT
TTL/CMOS Output Voltage Low
TTL/CMOS Output Voltage High
TTL/CMOS Output Short-Circuit Current
V
V
= 1.6mA (MAX220)
= -1.0mA
3.±
-2
V
CC
- 0.2
Sourcing V
= V
-10
OUT
GND
mA
Sinking V
= V
10
30
OUT
CC
V
= V or V = V (V
= 0V for
SHDN
CC
EN
CC SHDN
TTL/CMOS Output Leakage Current
±0.0±
±10
0.ꢀ
μA
MAX222), 0V ꢀ V
ꢀ V
CC
OUT
EN Input Threshold Low
EN Input Threshold High
Supply Voltage Range
MAX242
1.4
1.4
V
V
V
MAX242
2.0
4.±
±.±
2
MAX220
0.±
4
No load
MAX222/MAX232A/MAX233A/
MAX242/MAX243
10
V
CC
Supply Current (V
= V ),
SHDN CC
mA
μA
Figures ±, 6, 11, 19
MAX220
12
1±
3kꢁ load
both inputs
MAX222/MAX232A/MAX233A/
MAX242/MAX243
T
A
T
A
T
A
T
A
= +2±°C
0.1
2
10
±0
= 0°C to +ꢁ0°C
= -40°C to +ꢀ±°C
= -±±°C to +12±°C
MAX222/
MAX242
Shutdown Supply Current
2
±0
3±
100
±1
0.ꢀ
SHDN Input Leakage Current
SHDN Threshold Low
MAX222/MAX242
MAX222/MAX242
MAX222/MAX242
μA
V
1.4
1.4
SHDN Threshold High
2.0
6
V
C = ±0pF to 2±00pF,
R
L
MAX222/MAX232A/
MAX233/MAX242/MAX243
12
3
30
= 3kꢁ to ꢁkꢁ,
= +±V, T =
A
L
V
CC
Transition Slew Rate
V/μs
+2±°C, measured
from +3V to -3V or
-3V to +3V
MAX220
1.±
30.0
MAX222/MAX232A/
MAX233/MAX242/MAX243
1.3
4
3.±
10
t
t
, Figure 1
, Figure 1
PHLT
PLHT
MAX220
Transmitter Propagation Delay TLL to
RS-232 (Normal Operation)
μs
MAX222/MAX232A/
MAX233/MAX242/MAX243
1.±
±
3.±
10
MAX220
Maxim Integrated
3
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
