Datasheet

±15kV ESD-Protected, 1µA, 3.0V to 5.5V, 250kbps,
RS-232 Transceivers with AutoShutdown
Figure 9. Loopback Test Circuit
MAX3221E
MAX3223E
MAX3243E
5kΩ
R_ IN
R_ OUT
EN (MAX3221E/3E)
C2-
C2+
C1-
C1+
V-
V+
V
CC
C4
C3
C1
C2
0.1µF
V
CC
FORCEOFF
T_ OUT
T_ IN
GND
V
CC
0
1000pF
2µs/div
T1IN
T1OUT
R1OUT
5V/div
5V/div
5V/div
V
CC
= 3.3V
Figure 10. Loopback Test Result at 120kbps
Table 4. ±15kV ESD-Protected, 3.0V to 5.5V Powered RS-232 Transceivers from Maxim
PART
SUPPLY
VOLTAGE
RANGE
(V)
NO.
OF
Tx/Rx
GUARANTEED
DATA RATE
(kbps)
SUPPLY
CURRENT
(µA)
MAX3241E +3.0 to +5.5 3/5 250300
MAX3243E +3.0 to +5.5 3/5 2501
MAX3244E +3.0 to +5.5 3/5 2501
MAX3245E +3.0 to +5.5 3/5 1Mbps1
MAX3232E +3.0 to +5.5 2/2 250300
MAX3222E +3.0 to +5.5 2/2 250300
MAX3223E +3.0 to +5.5 2/2 2501
MAX3224E +3.0 to +5.5 2/2 2501
MAX3225E +3.0 to +5.5 2/2 1Mbps1
MAX3221E +3.0 to +5.5 1/1 2501
MAX3227E +3.0 to +5.5 1/1 1Mbps1
MAX3226E +3.0 to +5.5 1/1 2501
Auto-
Shutdown
Plus
—
—
Yes
Yes
—
—
—
Yes
Yes
—
Yes
Yes
Auto-
Shutdown
—
Yes
—
—
—
—
Yes
—
—
Yes
—
—
HUMAN
BODY
MODEL
(kV)
±15
±15
±15
±15
±15
±15
±15
±15
±15
±15
±15
±15
IEC 1000-4-2
CONTACT
DISCHARGE
(kV)
±8
±8
±8
±8
±8
±8
±8
±8
±8
±8
±8
±8
IEC 1000-4-2
AIR-GAP
DISCHARGE
(kV)
±15
±15
±15
±15
±15
±15
±15
±15
±15
±15
±15
±15
Maxim Integrated
13
MAX3221E/MAX3223E/MAX3243E