+5V-Powered, Multichannel RS-232
Drivers/Receivers
ELECTRICAL CHARACTERISTICS—MAX223/MAX230–MAX241 (continued)
(MAX223/230/232/234/236/23ꢁ/23ꢀ/240/241, V
= +±V ±10ꢃ MAX233/MAX23±, V
= ±V ±±ꢂF C1–C4 = 1.0µFꢃ MAX231/MAX239,
CC
CC
V
= ±V ±10ꢂꢃ V+ = ꢁ.±V to 13.2Vꢃ T = T
to T ꢃ unless otherwise noted.)
CC
A
MIN
MAX
PARAMETER
CONDITIONS
MIN
TYP
MAX UNITS
Normal operation
0.ꢀ
1.2
SHDN = ±V (MAX223)
SHDN = 0V (MAX23±/236/240/241)
T
V
= +2±°C,
A
RS-232 Input Threshold Low
RS-232 Input Threshold High
V
= ±V
CC
Shutdown (MAX223)
SHDN = 0V,
0.6
1.±
1.ꢁ
1.±
EN = ±V (R4 , R±
)
IN
IN
Normal operation
SHDN = ±V (MAX223)
SHDN = 0V (MAX23±/236/240/241)
2.4
T
A
= +2±°C,
V
V
= ±V
CC
Shutdown (MAX223)
SHDN = 0V,
2.4
EN = ±V (R4 F R±
)
IN
IN
RS-232 Input Hysteresis
V
= ±V, no hysteresis in shutdown
= ±V
0.2
3
0.±
±
1.0
ꢁ
V
kΩ
V
CC
RS-232 Input Resistance
T
A
= +2±°C, V
CC
TTL/CMOS Output Voltage Low
TTL/CMOS Output Voltage High
I
I
= 1.6mA (MAX231/232/233, I
= -1mA
= 3.2mA)
OUT
0.4
OUT
OUT
3.±
V
- 0.4
V
CC
0V ≤ R
EN = V
≤ V ꢃ EN = 0V (MAX223)ꢃ
CC
(MAX23±–241 )
OUT
TTL/CMOS Output Leakage Current
Receiver Output Enable Time
0.0±
±10
µA
ns
CC
MAX223
600
400
900
2±0
0.±
4
Normal
operation
MAX23±/236/239/240/241
MAX223
Normal
operation
Receiver Output Disable Time
Propagation Delay
ns
µs
MAX23±/236/239/240/241
Normal operation
10
40
40
RS-232 IN to
TTL/CMOS OUT,
C = 1±0pF
L
t
t
PHLS
PLHS
SHDN = 0V
(MAX223)
6
MAX223/MAX230/MAX234–241, T = +2±°C, V
= ±V,
CC
A
R = 3kΩ to ꢁkΩF C = ±0pF to 2±00pF, measured from
3
±.1
4
30
30
L
L
+3V to -3V or -3V to +3V
Transition Region Slew Rate
Transmitter Output Resistance
V/µs
MAX231/MAX232/MAX233, T = +2±°C, V
= ±V,
CC
A
R = 3kΩ to ꢁkΩ, C = ±0pF to 2±00pF, measured from
L
L
+3V to -3V or -3V to +3V
V
= V+ = V- = 0V, V = ±2V
OUT
300
Ω
CC
Transmitter Output Short-Circuit
Current
±10
mA
mA
6
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MAXIM [ MAXIM INTEGRATED PRODUCTS ]
