Datasheet

±15kV ESD-Protected, 1µA, 1Mbps, 3.0V to 5.5V,
RS-232 Transceivers with AutoShutdown Plus
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= +3V to +5.5V, C1–C4 = 0.1µF, tested at 3.3V ±10%; C
1
= 0.047µF, C2–C4 = 0.33µF, tested at 5.0V ±10%; T
A
= T
MIN
to T
MAX
,
unless otherwise noted. Typical values are at T
A
= +25°C.)
CONDITIONS
Ω300 10MOutput Resistance
V±5 ±5.4Output Voltage Swing
UNITSMIN TYP MAXSYMBOLPARAMETER
Figure 4a
T1IN = T2IN = GND, T3IN = V
CC
,
T3OUT loaded with 3kΩ to GND,
T1OUT and T2OUT loaded with
2.5mA each
s15 30 60t
AUTOSHDN
Receiver or Transmitter Edge to
Transmitters Shutdown
µs100t
WU
Receiver or Transmitter Edge to
Transmitters Enabled
µs30t
INVL
Receiver Positive or Negative
Threshold to INVALID Low
µs1t
INVH
Receiver Positive or Negative
Threshold to INVALID High
V V
CC
- 0.6
INVALID, READY
Output Voltage High
(MAX3224E–MAX3227E)
V0.4
INVALID, READY
Output Voltage Low
(MAX3224E–MAX3227E)
V-0.3 +0.3
Receiver Input Threshold to
INVALID Output Low
-2.7
V
2.7
Receiver Input Threshold to
INVALID Output High
±15
±8R_IN, T_OUT kV
±15
V±5Transmitter Output Voltage
µA±25Output Leakage Current
±60 mAOutput Short-Circuit Current
V
CC
= V+ = V- = 0V, transmitter outputs = ±2V
All transmitter outputs loaded with 3kΩ to
ground
V
CC
= 5V, Figure 5b (Note 2)
V
CC
= 5V, Figure 5b (Note 2)
V
CC
= 5V, Figure 4b
V
CC
= 5V, Figure 4b
I
OUT
= -1.0mA
I
OUT
= -1.6mA
Figure 4a
Negative threshold
Positive threshold
Human Body Model
V
CC
= 0V or 3V to 5.5V, V
OUT
= ±12V,
Transmitters disabled
IEC 1000-4-2 Contact Discharge
IEC 1000-4-2 Air Discharge
TRANSMITTER OUTPUTS
MOUSE DRIVEABILITY (MAX3244E/MAX3245E)
ESD PROTECTION
AutoShutdown Plus (FORCEON = GND, FORCEOFF = V
CC
)
Maxim Integrated
3
MAX3224E/MAX3225E/
MAX3226E/MAX3227E/MAX3244E/MAX3245E