+3.0V to +5.5V, 1µA, up to 250kbps, True
RS-232 Transceiver with AutoShutdown Plus™
MAX3238
ABSOLUTE MAXIMUM RATINGS
V
CC
...........................................................................-0.3V to +6V
V+ (Note 1) ...............................................................-0.3V to +7V
V- (Note 1) ................................................................+0.3V to -7V
V+ + |V-| (Note 1) .................................................................+13V
Input Voltages
T_IN,
FORCEOFF,
FORCEON ..............................-0.3V to +6V
R_IN .................................................................................±25V
Output Voltages
T_OUT...........................................................................±13.2V
R_OUT,
INVALID
....................................-0.3V to (V
CC
+ 0.3V)
Short-Circuit Duration
T_OUT (one at a time) ............................................Continuous
Continuous Power Dissipation (T
A
= +70°C)
SSOP (derate 9.52mW/°C above +70°C) ....................762mW
Operating Temperature Ranges
MAX3238CAI ......................................................0°C to +70°C
MAX3238EAI....................................................-40°C to +85°C
Storage Temperature Range ............................-65°C to +160°C
Lead Temperature (soldering, 10sec) ............................+300°C
Note 1:
V+ and V- can have a maximum magnitude of +7V, but their absolute difference can not exceed +13V.
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
= +3.0V to +5.5V; C1–C4 = 0.1µF (tested at 3.3V ±5%), C1–C4 = 0.22µF (tested at 3.3V ±10%), C1 = 0.047µF and
C2–C4 = 0.33µF (tested at 5.0V ±10%); T
A
= T
MIN
to T
MAX
; unless otherwise noted. Typical values are at T
A
= +25°C.)
PARAMETER
DC CHARACTERISTICS
Supply Current, AutoShutdown Plus
V
CC
= 3.3V or 5.0V, T
A
= +25°C, receivers idle,
transmitters idle, FORCEON = GND,
FORCEOFF
= V
CC
FORCEOFF
= GND, T
A
= +25°C
FORCEON =
FORCEOFF
= V
CC
, no load
1.0
10
µA
CONDITIONS
MIN
TYP
MAX
UNITS
Supply Current, Shutdown
Supply Current, AutoShutdown Plus
Disabled
Input Logic Threshold Low
Input Logic Threshold High
Input Leakage Current
Output Leakage Current
Output Voltage Low
Output Voltage High
RECEIVER INPUTS
Input Voltage Range
Input Threshold Low
Input Threshold High
Input Hysteresis
Input Resistance
1.0
10
µA
mA
0.5
2.0
LOGIC INPUTS AND RECEIVER OUTPUTS
T_IN, FORCEON,
FORCEOFF
V
CC
= 3.3V
V
CC
= 5.0V
T_IN, FORCEON,
FORCEOFF
Receivers disabled
I
OUT
= 1.6mA
I
OUT
= -1.0mA
V
CC
-
0.6
-25
V
CC
= 3.3V
V
CC
= 5.0V
V
CC
= 3.3V
V
CC
= 5.0V
T
A
= +25°C
3
0.6
0.8
1.2
1.5
1.5
1.8
0.3
5
7
2.4
2.4
V
CC
-
0.1
25
2.0
2.4
±0.01
±0.05
±1.0
±10
0.4
0.8
V
V
µA
µA
V
V
V
V
V
V
kΩ
2
_______________________________________________________________________________________
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
