M
1μA S upply Current, 1.8V to 4.25V-Powered
RS -232 Transc eiver with AutoS hutdown
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
Supply Voltages
V
CC
....................................................................-0.3V to +4.6V
V+ .......................................................... (V
CC
- 0.3V) to +7.5V
V-.......................................................................+0.3V to -7.4V
V
CC
to V-..........................................................................+12V
LX ................................................................-0.3V to (1V + V+)
Input Voltages
T_IN, FORCEON, FORCEOFF ............................ -0.3V to +7V
R_IN.................................................................................±25V
Output Voltages
T_OUT.............................................................................±15V)
R_OUT....................................................-0.3V to (V
CC
+ 0.3V)
ELECTRICAL CHARACTERISTICS
(Circuit of Figure 1, V
CC
= 1.8V to 4.25V, C1 = 0.47μF, C2 = C3 = C4 = 1μF, L1 = 15μH, T
A
= T
MIN
to T
MAX
, unless otherwise noted.
Typical values are at V
CC
= 3.0V, T
A
= +25°C.)
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.
Short-Circuit Duration, R_OUT, T_OUT to GND ....... Continuous
Continuous Power Dissipation (T
A
= +70°C)
Plastic DIP (derate 11.11mW/°C above +70°C) ..........889mW
SSOP (derate 8.00mW/°C above +70°C) ..................640mW
Operating Temperature Ranges
MAX3218C_ P................................................... 0°C to +70°C
MAX3218E_ P................................................. -40°C to +85°C
Storage Temperature Range ........................... -65°C to +150°C
Lead Temperature (soldering, 10sec) ........................... +300°C
V
CC
= 3.0V, T
A
= +25°C, all R_IN open,
FORCEON = GND, FORCEOFF = V
CC
FORCEOFF = GND, T
A
= +25°C, V
CC
= 3.0V
I
OUT
= -0.4mA,
|
R_IN
|
> 2.8V
I
OUT
= 1.0mA, -0.3V < R_IN < 0.3V
1μA supply current, Figure 4a
Figure 4a
R_OUT, I
OUT
= 1.0mA
R_OUT, I
OUT
= -0.4mA
T_IN, FORCEON = FORCEOFF = 0V or V
CC
T_IN, FORCEON, FORCEOFF
R_OUT, 0V
≤
R_OUT
≤
V
CC
,
FORCEON = FORCEOFF = 0V
T_IN, FORCEON, FORCEOFF
CONDITIONS
V
V
V
CC
- 0.25
INVALID Output Low Voltage
INVALID Output High Voltage
0.4
V
-0.3
0.3
Receiver Input Thresholds
Transmitters Disabled
V
2.8
Receiver Input Thresholds,
Transmitters Enabled
μA
0.05
±10
Output Leakage Current
V
V
CC
- 0.25
V
CC
- 0.08
Output Voltage High
μA
1.0
10
Supply Current, AutoShutdown
V
1.8
4.25
Operating Voltage Range
V
0.4
Output Voltage Low
μA
0.001
±1
Input Leakage Current
V
0.67 x V
CC
Input Logic Threshold High
1.0
10
V
0.33 x V
CC
Input Logic Threshold Low
UNITS
MIN
TYP
MAX
PARAMETER
FORCEON = FORCEOFF = V
CC
= 3.0V, no load
mA
2.0
3.0
Supply Current,
AutoShutdown Disabled
LOGIC INPUTS AND RECEIVER OUTPUTS
Supply Current, Shutdown
μA
DC CHARACTERISTICS
AUTOSHUTDOWN (FORCEON = GND, FORCEOFF = V
CC
)
Positive threshold
Negative threshold
-2.8