MAX3243E
3-V TO 5.5-V MULTICHANNEL RS-232 LINE DRIVER/RECEIVER
WITH ±15-kV IEC ESD PROTECTION
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SLLS657A–APRIL 2005–REVISED JUNE 2005
RECEIVER SECTION
Electrical Characteristics(1)
over recommended ranges of supply voltage and operating free-air temperature (unless otherwise noted) (see Figure 6)
PARAMETER
High-level output voltage
Low-level output voltage
TEST CONDITIONS
IOH = –1 mA
MIN
TYP(2)
MAX UNIT
VOH
VOL
VCC – 0.6
VCC – 0.1
V
IOH = 1.6 mA
VCC = 3.3 V
VCC = 5 V
0.4
2.4
2.4
V
1.6
1.9
VIT+
Positive-going input threshold voltage
Negative-going input threshold voltage
V
VCC = 3.3 V
VCC = 5 V
0.6
0.8
1.1
VIT–
V
1.4
Vhys
Ioff
ri
Input hysteresis (VIT+ – VIT–
Output leakage current (except ROUT2B) FORCEOFF = 0 V
Input resistance VI = ±3 V or ±25 V
)
0.5
V
±0.05
5
±10
µA
kΩ
3
7
(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)
PARAMETER
Propagation delay time, low- to high-level output
Propagation delay time, high- to low-level output
Output enable time
TEST CONDITIONS
CL = 150 pF, See Figure 3
TYP(2) UNIT
tPLH
tPHL
ten
150
150
200
200
50
ns
ns
ns
ns
ns
CL = 150 pF, RL = 3 kΩ, See Figure 4
tdis
Output disable time
Puse skew(3)
tsk(p)
See Figure 3
(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.
ESD Protection
PARAMETER
TEST CONDITIONS
TYP UNIT
HBM
±15
±15
±8
kV
kV
kV
Driver outputs (pins 4–8)
IEC61000-4-2, Air-Gap discharge
IEC61000-4-2, Contact Discharge
7
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