1µA Supply-Current, True +3V to +5.5V
RS-232 Transceivers with AutoShutdown
MAX3221/MAX3223/MAX3243
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,
EN
(MAX3223) ......-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 ......................................................................Continuous
Continuous Power Dissipation (T
A
= +70°C)
16-Pin SSOP (derate 7.14mW/°C above +70°C) ...........571mW
16-Pin TSSOP (derate 6.70mW/°C above +70°C) .........533mW
20-Pin Plastic DIP (derate 11.11mW/°C above +70°C)....889mW
20-Pin SSOP (derate 8.00mW/°C above +70°C) ...........640mW
20-Pin TSSOP DIP (derate 7.00mW/°C above +70°C).....559mW
28-Pin Wide SO (derate 12.50mW/°C above +70°C) ............1W
28-Pin SSOP (derate 9.52mW/°C above +70°C) ...........762mW
28-Pin TSSOP (derate 8.70mW/°C above +70°C) .........696mW
Operating Temperature Ranges
MAX32_ _C_ _.......................................................0°C to +70°C
MAX32_ _E_ _ ....................................................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10sec) .............................+300°C
Note 1:
V+ and V- can have maximum magnitudes of 7V, but their absolute difference cannot 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 (Note 2), T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
PARAMETER
DC CHARACTERISTICS
Supply Current, AutoShutdown
Supply Current, Shutdown
Supply Current,
AutoShutdown Disabled
Input Logic Threshold Low
Input Logic Threshold High
Input Leakage Current
Output Leakage Current
Output Voltage Low
Output Voltage High
All R_IN open, FORCEON = GND,
V
CC
= 3.3V
FORCEOFF
= V
CC
or 5.0V,
FORCEOFF
= GND
T
A
= +25°C FORCEON =
FORCEOFF
= V ,
CC
CONDITIONS
MIN
TYP
MAX
UNITS
1.0
1.0
0.3
10
10
1.0
µA
µA
mA
no load
T_IN, FORCEON,
FORCEOFF, EN
(MAX3223)
T_IN, EN, FORCEON,
FORCEOFF
T_IN, EN, FORCEON,
FORCEOFF
Receivers disabled
I
OUT
= 1.6mA
I
OUT
= -1.0mA
Positive threshold
Negative threshold
-2.7
-0.3
V
CC
- 0.6
V
CC
= 3.3V
V
CC
= 5.0V
2.0
2.4
LOGIC INPUTS AND RECEIVER OUTPUTS
0.8
V
V
±0.01
±0.05
±1.0
±10
0.4
V
CC
- 0.1
2.7
µA
µA
V
V
AUTOSHUTDOWN
(FORCEON = GND,
FORCEOFF
= V
CC
)
Receiver Input Thresholds to
Transmitters Enabled
Receiver Input Thresholds to
Transmitters Disabled
INVALID
Output Voltage Low
INVALID
Output Voltage High
Receiver Threshold to
Transmitters Enabled (t
WU
)
Receiver Positive or Negative
Threshold to
INVALID
High (t
INVH
)
Receiver Positive or Negative
Threshold to
INVALID
Low (t
INVL
)
2
Figure 5
V
V
V
V
250
1
30
µs
µs
µs
1µA supply current, Figure 5
I
OUT
= 1.6mA
I
OUT
= -1.0mA
Figure 5
Figure 5
Figure 5
0.3
0.4
V
CC
- 0.6
_______________________________________________________________________________________
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
