Datasheet

kV
±15kV ESD-Protected, 1µA, 3.0V to 5.5V, 250kbps,
RS-232 Transceivers with AutoShutdown
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 MIN TYP MAX UNITS
±25
Output Short-Circuit Current ±60 mA
Output Resistance 300 10M Ω
Output Leakage Current µA
Input Threshold Low
0.6 1.2
V
±5 ±5.4Output Voltage Swing V
CONDITIONS
V
CC
= V+ = V- = 0, T
OUT
= ±2V
V
OUT
= ±12V, V
CC
= 0 or 3V to
5.5V, transmitters disabled
All transmitter outputs loaded with
3kΩ to ground
Receiver Positive or Negative
Threshold to INVALID High
1 µsV
CC
= 5V, Figure 5b
Input Hysteresis 0.5 V
Input Threshold High V
Input Resistance 35 7kΩ
0.8 1.5
1.8 2.4
1.5 2.4
T
A
= +25°C
T
A
= +25°C
±5.0Transmitter Output Voltage V
T1IN = T2IN = GND, T3IN = V
CC
,
T3OUT loaded with 3kΩ to GND,
T1OUT and T2OUT loaded with
2.5mA each
t
INVH
SYMBOL
V
CC
= 3.3V
V
CC
= 5.0V
V
CC
= 3.3V
V
CC
= 5.0V
±15IEC 1000-4-2 Air-Gap Discharge
Receiver Positive or Negative
Threshold to INVALID Low
30 µsV
CC
= 5V, Figure 5bt
INVL
Input Voltage Range -25 25 V
Receiver or Transmitter Edge to
Transmitters Enabled
100 µsV
CC
= 5V, Figure 5bt
WU
Input Voltage Range -25 25 V
±8IEC 1000-4-2 Contact Discharge
R_IN, T_OUT
±15Human Body Model
kV
RECEIVER INPUTS
TRANSMITTER OUTPUTS
MOUSE DRIVEABILITY (MAX3243E)
ESD PROTECTION
Maxim Integrated
3
MAX3221E/MAX3223E/MAX3243E