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STC485E Datasheet, PDF (2/11 Pages) List of Unclassifed Manufacturers – ±15kV ESD-Protected,Slew-Rate-Limited, Fail-Safe,True RS-485 Transceivers
Absolute Maximum Ratings
Supply Voltage (VCC) … … … … … … … … … … … … … … … … … … 7V
Control Input Voltage (/RE, DE) … … … … … … -0.3V to (VCC + 0.3V)
Driver Input Voltage (DI) … … … … … … … … … -0.3V to (VCC + 0.3V)
Driver Output Voltage (A, B) … … … … … … … … … … … -7.5V to 12.5V
Receiver Input Voltage (A, B) … … … … … … … … … … … -7.5V to 12.5V
Receiver Output Voltage (RO) … … … … … … … -0.3V to (VCC + 0.3V)
Continuous Power Dissipation (TA = +70°C)
8-Pin Plastic DIP (derate 9.09mW/°C above +70°C… … … … 727mW
8-Pin SO (derate 5.88mW/°C above +70°… … … … … … … … 471mW
Operating Temperature Ranges
STC485EE_ _ … … … … … … … … … … … … … … … … -40°C to +85°C
Storage Temperature Range… … … … … … … … … … -65°C to +160°C
Lead Temperature (soldering, 10sec) … … … … … … … … … … +300°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.
DC Electrical Characteristics
(VCC = +5V ±5%, TA = TMIN to TMAX, unless otherwise noted. Typical values are at VCC = +5V and TA = +25°C.) (Note 1)
PARAMETER
SYMBOL
DRIVER
Differential Driver Output (No Load)
VOD1
Differential Driver Output
VOD2
Change in Magnitude of Driver Differential
Output Voltage (Note 2)
? VOD
Driver Common-Mode Output Voltage
VOC
Change in Magnitude of Common
-Mode Output Voltage (Note 2)
? VOC
Input High Voltage
Input Low Voltage
DI Input Hysteresis
VIH
VIL
VHYS
Input Current (A, B)
IIN2
Driver Short-Circuit Output Current (Note
3)
RECEIVER
Receiver Differential Threshold Voltage
Receiver Input Hysteresis
Receiver Output High Voltage
Receiver Output Low Voltage
Three-State (High Impedance)
Output Current at Receiver
Receiver Input Resistance
Receiver Short-Circuit Output Current
SUPPLY CURRENT
IOSD
VTH
? VTH
VOH
VOL
IOZR
RIN
IOSR
Supply Current
ICC
Supply Current in Shutdown Mode
ESD Protection for A, B
ISHDN
CONDITIONS
MIN TYP MAX UNITS
Figure 2
R= 50O, Figure 2
1.5
R= 50O?, Figure 2
R= 50O, Figure 2
R= 50O, Figure 2
DE, DI, /RE
2.0
DE, DI, /RE
UM3085E
100
DE = 0V,
VCC = 0V or 5V
VIN = 12V
VIN = -7V
VOUT = -7V
VOUT = 12V
5
V
V
0.2
V
3
V
0.2
V
V
0.8
V
mV
1.0
mA
-0.8
-250
mA
250
-7V=VCM=12V
VCM = 0V
IOUT = -1.5mA, VID = 200mV
IOUT = 2.5mA, VID = 200mV
VCC = 5V, 0V=VOUT\=VCC
-7V=VCM=12V
0V=VRO=VCC
-0.2
-0.05
V
25
mV
VCC –1.5
V
0.4
V
±1 µA
96
kO
±8
±60 mA
No load,
DI = 0V or VCC
DE = VCC, /RE = 0V
0.3
or VCC
DE = 0V, /RE = 0V 0.25
DE = 0V, /RE = VCC, DI = VCC or 0V
0.002
Human Body Model
IEC 1000-4-2 Air Discharge
mA
10
µA
±15
kV
±15
Note 1: All currents into the device are positive; all currents out of the device are negative. All voltages are referred to device ground unless
otherwise noted.
Note 2: VOD and VOC are the changes in VOD and VOC, respectively, when the DI input changes state.
Note 3: Maximum current level applies to peak current just prior to foldback-current limiting; minimum current level applies during
current limiting.