Datasheet

(V
CC
= +3.0V to +5.5V, C1–C4 = 0.1μF (Note 2), T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
(V
CC
= +3.0V to +5.5V, C1–C4 = 0.1μF (Note 2), T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
PARAMETER CONDITIONS MIN TYP MAX UNITS
Input Hysteresis 0.3 V
Input Resistance T
A
= +25°C 3 5 7 kΩ
TRANSMITTER OUTPUTS
Output Voltage Swing All transmitter outputs loaded with 3kΩ to ground ±5.0 ±5.4 V
Output Resistance V
CC
= V+ = V- = 0V, V
OUT
= ±2V 300 10M Ω
Output Short-Circuit Current ±35 ±60 mA
Output Leakage Current
V
OUT
= ±12V, V
CC
= 0V or 3V to 5.5V, transmitters
disabled
±25 µA
MOUSE DRIVEABILITY (MAX3241)
Transmitter Output Voltage
T1IN = T2IN = GND, T3IN = V
CC
,
T3OUT loaded with 3kΩ to GND,
T1OUT and T2OUT loaded with 2.5mA each
±5.0 V
PARAMETER CONDITIONS MIN TYP MAX UNITS
Maximum Data Rate R
L
= 3kΩ, C
L
= 1000pF, one transmitter switching 120 235 kbps
Receiver Propagation Delay R_IN to R_OUT, C
L
= 150pF
t
PHL
0.3
μs
t
PLH
0.3
Receiver Output Enable Time Normal operation 200 ns
Receiver Output Disable Time Normal operation 200 ns
Transmitter Skew | t
PHL
- t
PLH
| 300 ns
Receiver Skew | t
PHL
- t
PLH
| 300 ns
Transition-Region Slew Rate
V
CC
= 3.3V, R
L
= 3kΩ to 7kΩ,
+3V to -3V or -3V to +3V,
T
A
= +25°C, one transmitter
switching
C
L
= 150pF to 1000pF 6 30
V/μs
C
L
= 150pF to 2500pF 4 30
Timing Characteristics—MAX3222/MAX3232/MAX3241
Electrical Characteristics (continued)
MAX3222/MAX3232/
MAX3237/MAX3241
3.0V to 5.5V, Low-Power, Up to 1Mbps,
True RS-232 Transceivers
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