MAX3232E
3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER
WITH ±15-kV IEC ESD PROTECTION
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SLLS664A–AUGUST 2005–REVISED APRIL 2007
RECEIVER SECTION
Electrical Characteristics(1)
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Figure 4)
PARAMETER
High-level output voltage
Low-level output voltage
TEST CONDITIONS
IOH = –1 mA
MIN
TYP(2)
MAX
UNIT
V
VOH
VOL
VCC – 0.6
VCC – 0.1
IOL = 1.6 mA
VCC = 3.3 V
VCC = 5 V
0.4
2.4
2.4
V
1.5
1.8
1.2
1.5
0.3
5
VIT+
Positive-going input threshold voltage
Negative-going input threshold voltage
V
V
VCC = 3.3 V
VCC = 5 V
0.6
0.8
VIT–
Vhys
ri
Input hysteresis (VIT+ – VIT–
)
V
Input resistance
VI = ±3 V to ±25 V
3
7
kΩ
(1) Test conditions are C1–C4 = 0.1 µF at VCC = 3.3 V ± 0.3 V; C1 = 0.047 µF, C2–C4 = 0.33 µF at VCC = 5 V ± 0.5 V.
(2) All typical values are at VCC = 3.3 V or VCC = 5 V, and TA = 25°C.
Switching Characteristics(1)
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Figure 3)
PARAMETER
Propagation delay time, low- to high-level output
Propagation delay time, high- to low-level output
Pulse skew(3)
TEST CONDITIONS
TYP(2)
300
UNIT
ns
tPLH
tPHL
tsk(p)
CL = 150 pF
300
ns
300
ns
(1) Test conditions are C1–C4 = 0.1 µF at VCC = 3.3 V ± 0.3 V; C1 = 0.047 µF, C2–C4 = 0.33 µF at VCC = 5 V ± 0.5 V.
(2) All typical values are at VCC = 3.3 V or VCC = 5 V, and TA = 25°C.
(3) Pulse skew is defined as |tPLH – tPHL| of each channel of the same device.
5
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