MAX3221 Просмотр технического описания (PDF) - Maxim Integrated
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MAX3221 Datasheet PDF : 16 Pages
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1µA Supply-Current, True +3V to +5.5V
RS-232 Transceivers with AutoShutdown
ABSOLUTE MAXIMUM RATINGS
VCC ...........................................................................-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 (VCC + 0.3V)
Short-Circuit Duration
T_OUT ......................................................................Continuous
Continuous Power Dissipation (TA = +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, 10s) .................................+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
(VCC = +3.0V to +5.5V, C1–C4 = 0.1µF (Note 2), TA = TMIN to TMAX, unless otherwise noted. Typical values are at TA = +25°C.)
PARAMETER
CONDITIONS
MIN
DC CHARACTERISTICS
Supply Current, AutoShutdown
Supply Current, Shutdown
Supply Current,
AutoShutdown Disabled
VCC = 3.3V
or 5.0V,
TA = +25°C
All R_IN open, FORCEON = GND,
FORCEOFF = VCC
FORCEOFF = GND
FORCEON = FORCEOFF = VCC,
no load
LOGIC INPUTS AND RECEIVER OUTPUTS
Input Logic Threshold Low
T_IN, FORCEON, FORCEOFF, EN (MAX3223)
Input Logic Threshold High
Input Leakage Current
T_IN, EN, FORCEON, FORCEOFF
T_IN, EN, FORCEON, FORCEOFF
VCC = 3.3V 2.0
VCC = 5.0V 2.4
Output Leakage Current
Receivers disabled
Output Voltage Low
IOUT = 1.6mA
Output Voltage High
IOUT = -1.0mA
AUTOSHUTDOWN (FORCEON = GND, FORCEOFF = VCC)
Receiver Input Thresholds to
Transmitters Enabled
Figure 5
Positive threshold
Negative threshold
Receiver Input Thresholds to
Transmitters Disabled
1µA supply current, Figure 5
INVALID Output Voltage Low
IOUT = 1.6mA
INVALID Output Voltage High
IOUT = -1.0mA
Receiver Threshold to
Transmitters Enabled (tWU)
Receiver Positive or Negative
Threshold to INVALID High (tINVH)
Receiver Positive or Negative
Threshold to INVALID Low (tINVL)
Figure 5
Figure 5
Figure 5
VCC - 0.6
-2.7
-0.3
VCC - 0.6
TYP
1.0
1.0
0.3
±0.01
±0.05
VCC - 0.1
250
1
30
MAX UNITS
10
µA
10
µA
1.0
mA
0.8
V
V
±1.0
µA
±10
µA
0.4
V
V
2.7
V
0.3
V
0.4
V
V
µs
µs
µs
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