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AUTO-POWERDOWN SECTION
Switching Characteristics
MAX3227E
3-V TO 5.5-V SINGLE-CHANNEL RS-232 LINE DRIVER/RECEIVER
WITH ± 15-kV IEC ESD PROTECTION
SLLS715A – FEBRUARY 2006 – REVISED JUNE 2007
xxx
Electrical Characteristics
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Figure 4 )
PARAMETER TEST CONDITIONS MIN MAX UNIT
Receiver input threshold
V
T+(valid)
FORCEON = GND, FORCEOFF = V
CC
2.7 V
for INVALID high-level output voltage
Receiver input threshold
V
T–(valid)
FORCEON = GND, FORCEOFF = V
CC
–2.7 V
for INVALID high-level output voltage
Receiver input threshold
V
T(invalid)
FORCEON = GND, FORCEOFF = V
CC
–0.3 0.3 V
for INVALID low-level output voltage
V
OH
INVALID, READY output voltage high I
OH
= –1 mA, FORCEON = GND, FORCEOFF = V
CC
V
CC
– 0.6 V
V
OL
INVALID, READY output voltage low I
OL
= 1.6 mA, FORCEON = GND, FORCEOFF = V
CC
0.4 V
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Figure 4 )
PARAMETER MIN TYP
(1)
MAX UNIT
t
INVH
Propagation delay time, low- to high-level output 1 μ s
t
INVL
Propagation delay time, high- to low-level output 30 μ s
t
WU
Supply enable time 100 μ s
t
AUTOPRDN
Driver or receiver edge to driver's shutdown V
CC
= 5 V 15 30 60 s
(1) All typical values are at V
CC
= 3.3 V or V
CC
= 5 V, and T
A
= 25 ° C.
7
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