±15kV ESD-Protected, Down to 10nA, 3.0V to 5.5V,
Up to 1Mbps, True RS-232 Transceivers
MAX3222E/MAX3232E/MAX3237E/MAX3241E
†
/MAX3246E
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
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 10.9mW/°C above +70°C) ........879mW
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
28-Pin TSSOP (derate 12.8mW/°C above +70°C) ......1026mW
32-Lead QFN (derate 23.2mW/°C above +70°C) .........1860mW
6 x 6 UCSP (derate 12.6mW/°C above +70°C) .............1010mW
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
Bump Reflow Temperature (Note 2)
Infrared, 15s..................................................................+200°C
Vapor Phase, 20s..........................................................+215°C
Note 1:
V+ and V- can have maximum magnitudes of 7V, but their absolute difference cannot exceed 13V.
Note 2:
This device is constructed using a unique set of packaging techniques that impose a limit on the thermal profile the device
can be exposed to during board-level solder attach and rework. This limit permits only the use of the solder profiles recom-
mended in the industry-standard specification, JEDEC 020A, paragraph 7.6, Table 3 for IR/VPR and convection reflow.
Preheating is required. Hand or wave soldering is not allowed.
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.
ELECTRICAL CHARACTERISTICS
(V
CC
= +3V 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.) (Notes 3, 4)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
DC CHARACTERISTICS
(V
CC
= +3.3V or +5V, T
A
= +25°C)
Supply Current
SHDN
= V
CC
, no load
SHDN
= GND
SHDN
= R_IN = GND, T_IN = GND or V
CC
(MAX3237E)
T_IN,
EN, SHDN,
MBAUD
T_IN,
EN, SHDN,
MBAUD
V
CC
= +3.3V
V
CC
= +5.0V
Transmitter Input Hysteresis
Input Leakage Current
RECEIVER OUTPUTS
Output Leakage Current
Output Voltage Low
R_OUT (MAX3222E/MAX3237E/MAX3241E/
MAX3246E),
EN
= V
CC
, receivers disabled
IOUT = 1.6mA (MAX3222E/MAX3232E/MAX3241E/
MAX3246E), IOUT = 1.0mA (MAX3237E)
±0.05
±10
0.4
µA
V
T_IN,
EN, SHDN
T_IN,
SHDN,
MBAUD
MAX3222E, MAX3232E,
MAX3241E, MAX3246E
MAX3237E (Note 5)
2.0
V
2.4
0.5
±0.01
9
±1
18
V
µA
MAX3222E, MAX3232E,
MAX3241E, MAX3246E
MAX3237E
Shutdown Supply Current
LOGIC INPUTS
Input Logic Low
Input Logic High
0.8
V
0.3
0.5
1
10
1
2.0
10
300
µA
nA
mA
2
_______________________________________________________________________________________
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
