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