Datasheet

MAX221E
±15kV ESD-Protected, +5V, 1µA, Single RS-232
Transceiver with AutoShutdown
_______________________________________________________________________________________ 3
TIMING CHARACTERISTICS
(V
CC
= +5V ±10%, C1–C4 = 0.1µF, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= +5V ±10%, C1–C4 = 0.1µF, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
Note 1: Transmitter skew is measured at the transmitter zero crosspoints.
R
L
= 3kΩ to 7kΩ, C
L
= 50pF to 1000pF,
V
CC
= 4.5V
CONDITIONS
kbps
250
Maximum Data Rate
UNITSMIN TYP MAXSYMBOLPARAMETER
T
A
= +25°C, V
CC
= 5V, R
L
= 3kΩ to 7kΩ,
C
L
= 500pF to 1000pF, measured from
-3V to +3V or +3V to -3V
(Note 1)
Normal operation
Normal operation
C
L
= 150pF
V/µs3630Transition-Region Slew Rate
ns
50
|t
PHL
t
PLH
|Receiver Skew
ns
200
|t
PHL
t
PLH
|Transmitter Skew
ns
200
Receiver Output Disable Time
ns
300
Receiver Output Enable Time
ms
0.15
t
PHL,
t
PLH
Receiver Propagation Delay
CONDITIONS UNITSMIN TYP MAXSYMBOLPARAMETER
V
CC
= V+ = V- = 0, V
OUT
= ±2V
Driver loaded with 3kΩ to ground
T
A
= +25°C, V
CC
= 5V
V
CC
= 5V, no hysteresis in shutdown
T
A
= +25°C, V
CC
= 5V
T
A
= +25°C, V
CC
= 5V
mA±10 ±60Output Short-Circuit Current
Ω300Output Resistance
V±5 ±9Output Voltage Swing
kΩ357Input Resistance
V0.5Input Hysteresis
V1.7 2.4Input Threshold High
V0.8 1.2Input Threshold Low
V-25 25Input Voltage Range
IEC 1000-4-2 Air-Gap Discharge
kV
±15
RIN, TOUT IEC 1000-4-2 Contact Discharge ±8
Human Body Model ±15
RECEIVER INPUT
TRANSMITTER OUTPUT
ESD PROTECTION