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MAX3241EEUI View Datasheet(PDF) - Maxim Integrated

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MAX3241EEUI Datasheet PDF : 26 Pages
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±15kV ESD-Protected, Down to 10nA, 3.0V to 5.5V,
Up to 1Mbps, True RS-232 Transceivers
Table 1. MAX3222E/MAX3237E/MAX3241E/
MAX3246E Shutdown and Enable Control
Truth Table
SHDN EN
T_OUT
R_OUT
R_OUTB
(MAX3237E/
MAX3241E)
0
0
High
impedance
Active
Active
0
1
High
High
Active
impedance impedance
1
0
Active
Active
Active
1
1
Active
High
impedance
Active
ESD protection can be tested in various ways; the
transmitter outputs and receiver inputs for the
MAX3222E/MAX3232E/MAX3241E/MAX3246E are
characterized for protection to the following limits:
• ±15kV using the Human Body Model
• ±8kV using the Contact Discharge method specified
in IEC 1000-4-2
• ±9kV (MAX3246E only) using the Contact Discharge
method specified in IEC 1000-4-2
• ±15kV using the Air-Gap Discharge method speci-
fied in IEC 1000-4-2
RC
1M
CHARGE-CURRENT-
LIMIT RESISTOR
RD
1500
DISCHARGE
RESISTANCE
HIGH-
VOLTAGE
DC
SOURCE
Cs
100pF
STORAGE
CAPACITOR
DEVICE-
UNDER-
TEST
IP 100%
90%
AMPERES
36.8%
10%
0
0 tRL
Ir
PEAK-TO-PEAK RINGING
(NOT DRAWN TO SCALE)
TIME
tDL
CURRENT WAVEFORM
Figure 4a. Human Body ESD Test Model
Figure 4b. Human Body Model Current Waveform
RC
50Mto 100M
RD
330
CHARGE-CURRENT-
LIMIT RESISTOR
DISCHARGE
RESISTANCE
HIGH-
VOLTAGE
DC
SOURCE
Cs
150pF
STORAGE
CAPACITOR
DEVICE-
UNDER-
TEST
I
100%
90%
10%
tr = 0.7ns to 1ns
t
30ns
60ns
Figure 5a. IEC 1000-4-2 ESD Test Model
Figure 5b. IEC 1000-4-2 ESD Generator Current Waveform
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