M
±15kV ESD-Protected, Down to 10nA, 3.0V to 5.5V,
Up to 1Mbps, True RS-232 Transceivers
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
V
CC
to GND..............................................................-0.3V to +6V
V+ to GND (Note 1)..................................................-0.3V to +7V
V- to GND (Note 1)...................................................+0.3V to -7V
V+ + |V-| (Note 1).................................................................+13V
Input Voltages
T_IN,
EN
,
SHDN
, MBAUD to GND ........................-0.3V to +6V
R_IN to GND.....................................................................±25V
Output Voltages
T_OUT to GND...............................................................±13.2V
R_OUT, R_OUTB (MAX3241E)................-0.3V to (V
CC
+ 0.3V)
Short-Circuit Duration, T_OUT to GND.......................Continuous
Continuous Power Dissipation (T
A
= +70°C)
16-Pin SSOP (derate 7.14mW/°C above +70°C) ..........571mW
ELECTRICAL CHARACTERISTICS
(V
CC
= +3.0V to +5.5V, C1–C4 = 0.1μF, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.) (Note 2)
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
16-Pin Wide SO (derate 9.52mW/°C above +70°C) .....762mW
18-Pin Wide SO (derate 9.52mW/°C above +70°C) .....762mW
18-Pin PDIP (derate 11.11mW/°C above +70°C)..........889mW
20-Pin TSSOP (derate 7.0mW/°C above +70°C) ..........559mW
20-Pin SSOP (derate 8.00mW/°C above +70°C) ..........640mW
28-Pin SSOP (derate 9.52mW/°C above +70°C) ..........762mW
28-Pin Wide SO (derate 12.50mW/°C above +70°C).............1W
Operating Temperature Ranges
MAX32_ _EC_ _ ...................................................0°C to +70°C
MAX32_ _EE_ _.................................................-40°C to +85°C
Storage Temperature Range.............................-65°C to +150°C
Lead Temperature (soldering, 10s).................................+300°C
Note 1:
V+ and V- can have maximum magnitudes of 7V, but their absolute difference cannot exceed 13V.
V
CC
= 5.0V
V
CC
= 3.3V
V
CC
= 3.3V
V
CC
= 5.0V
SHDN
= V
CC
, no load
T_IN,
EN
,
SHDN
T
A
= +25°C
I
OUT
= 1.6mA (MAX3222E/MAX3232E/MAX3241E)
I
OUT
= 1.0mA (MAX3237E)
R_OUT (MAX3222E/MAX3237E/MAX3241E),
EN
= V
CC
,
receivers disabled
μA
T_IN,
EN
,
SHDN,
MBAUD
T_IN,
EN
,
SHDN,
MBAUD
I
OUT
= -1.0mA
CONDITIONS
±0.01
±1
Input Leakage Current
SHDN
= GND
SHDN
= R_IN = GND, T_IN = GND or V
CC
(MAX3237E)
μA
nA
1
10
10
300
Shutdown Supply Current
V
0.8
1.5
Input Threshold Low
0.6
1.1
V
-25
+25
Input Voltage Range
V
V
CC
-
0.6
V
CC
-
0.1
Output Voltage High
mA
0.3
1
Supply Current
V
0.4
0.4
Output Voltage Low
μA
±0.05
±10
Output Leakage Current
V
0.5
Transmitter Input Hysteresis
V
0.8
Input Logic Low
2.0
2.4
V
Input Logic High
UNITS
MIN
TYP
MAX
PARAMETER
MAX3222E, MAX3232E,
MAX3241E
MAX3237E
0.5
2.0
MAX3222E, MAX3232E,
MAX3241E
T_IN,
SHDN,
MBAUD
9
18
MAX3237E (Note 3)
DC CHARACTERISTICS
(V
CC
= +3.3V or +5.0V, T
A
= +25°C)
LOGIC INPUTS
RECEIVER OUTPUTS
RECEIVER INPUTS