3.0V to 5.5V, Low-Power, up to 1Mbps, True RS-232
Transceivers Using Four 0.1µF External Capacitors
ELECTRICAL CHARACTERISTICS (continued)
(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
Input Hysteresis
Input Resistance
TRANSMITTER OUTPUTS
Output Voltage Swing
Output Resistance
Output Short-Circuit Current
Output Leakage Current
V
OUT
= ±12V, V
CC
= 0V or 3V to 5.5V, transmitters
disabled
All transmitter outputs loaded with 3kΩ to ground
V
CC
= V+ = V- = 0V, T
OUT
= ±2V
±5.0
300
±5.4
10M
±35
±60
±25
V
Ω
mA
µA
T
A
= +25°C
3
CONDITIONS
MIN
TYP
0.3
5
7
MAX
UNITS
V
kΩ
MAX3222/MAX3232/MAX3237/MAX3241
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
TIMING CHARACTERISTICS—MAX3222/MAX3232/MAX3241
(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
Maximum Data Rate
Receiver Propagation Delay
Receiver Output Enable Time
Transmitter Skew
Receiver Skew
CONDITIONS
R
L
= 3kΩ, C
L
= 1000pF, one transmitter switching
R_IN to R_OUT, C
L
= 150pF
Normal operation
t
PHL
t
PLH
MIN
120
TYP
235
0.3
0.3
200
200
300
300
C
L
= 150pF to
1000pF
C
L
= 150pF to
2500pF
6
4
30
V/µs
30
MAX
UNITS
kbps
µs
ns
ns
ns
ns
Receiver Output Disable Time Normal operation
|
t
PHL
- t
PLH
|
|
t
PHL
- t
PLH
|
V
CC
= 3.3V, R
L
= 3Ω to 7kΩ,
+3V to -3V or -3V to +3V,
T
A
= +25°C
Transition-Region Slew Rate
_______________________________________________________________________________________
3
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
