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ST485ECN Datasheet(PDF) 7 Page - STMicroelectronics

Part # ST485ECN
Description  짹15KV ESD protected, low power RS-485/RS-422 transceiver
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST485ECN Datasheet(HTML) 7 Page - STMicroelectronics

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ST485E
Electrical characteristics
7/19
IOSD2
Driver short-circuit current,
VO=Low
VO = -7 to 12V
(3)
35
250
mA
IOSR
Receiver short-circuit current VO = 0V to VCC
795
mA
1.
All currents into device pins are positive; all out of device pins are negative; all voltages are referenced to device ground
unless specified.
2.
Supply current specification is valid for loaded transmitters when VDE = 0V
3.
Applies to peak current. See typical Operating Characteristics.
Table 6.
DC Electrical characteristics (VCC = 5V ± 5%, TA = TMIN to TMAX, unless otherwise
specified. Typical values are referred to TA = 25°C)
Symbol
Parameter
Test conditions (1)
Min.
Typ.
Max.
Unit
Table 7.
Driver switching characteristics (VCC = 5V ± 5%, TA = TMIN to TMAX, unless otherwise
specified. Typical values are referred to TA = 25°C)
Symbol
Parameter
Test conditions (1)
Min.
Typ.
Max.
Unit
tPLH
tPHL
Propagation delay input to
output
RDIFF = 54ΩCL1 = CL2 = 100pF
(See
Figure 4. and Figure 6.)
25
45
ns
tSK
Output skew to output
RDIFF = 54ΩCL1 = CL2 = 100pF
(See
Figure 4. and Figure 6.)
25
ns
tTLH
tTHL
Rise or fall time
RDIFF = 54Ω, CL1 = CL2 = 100pF (See
Figure 4. and Figure 6.)
15
40
ns
tPZH
Output enable time
CL = 100pF, S2 = Closed
(See
Figure 5. and Figure 7.)
35
50
ns
tPZL
Output enable time
CL = 100pF, S1 = Closed
(See
Figure 5. and Figure 7.)
25
40
ns
tPLZ
Output disable time
CL = 15pF, S1 = Closed
(See
Figure 5. and Figure 7.)
25
40
ns
tPHZ
Output disable time
CL = 15pF, S2 = Closed
(See
Figure 5. and Figure 7.)
35
50
ns
1.
All currents into device pins are positive; all out of device pins are negative; all voltages are referenced to device ground
unless specified.


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