MAX3221E
3-V TO 5.5-V SINGLE-CHANNEL RS-232 LINE DRIVER/RECEIVER
WITH 15-kV IEC ESD PROTECTION
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SLLS686A–OCTOBER 2005–REVISED MAY 2006
Auto-Powerdown Section Electrical Characteristics
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Figure 5)
PARAMETER
TEST CONDITIONS
MIN
MAX UNIT
Receiver input threshold
for INVALID high-level output voltage
VT+(valid)
VT–(valid)
VT(invalid)
VOH
FORCEON = GND,
FORCEOFF = VCC
FORCEOFF = VCC
FORCEOFF = VCC
2.7
0.3
0.4
V
V
V
V
V
Receiver input threshold
for INVALID high-level output voltage
FORCEON = GND,
FORCEON = GND,
–2.7
–0.3
Receiver input threshold
for INVALID low-level output voltage
IOH = –1 mA, FORCEON = GND,
FORCEOFF = VCC
INVALID high-level output voltage
INVALID low-level output voltage
VCC – 0.6
IOL = 1.6 mA, FORCEON = GND,
FORCEOFF = VCC
VOL
Auto-Powerdown Section Switching Characteristics
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Figure 5)
PARAMETER
Propagation delay time, low- to high-level output
TYP(1) UNIT
tvalid
tinvalid
ten
1
30
µs
µs
µs
Propagation delay time, high- to low-level output
Supply enable time
100
(1) All typical values are at VCC = 3.3 V or VCC = 5 V, and TA = 25°C.
6
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