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ST3485ECDR Datasheet(PDF) 16 Page - STMicroelectronics

Part # ST3485ECDR
Description  3.3 V powered, 15 kV ESD protected, up to 12 Mbps RS-485/RS-422 transceiver
PDF  24 Pages
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Manufacturer  STMICROELECTRONICS [STMicroelectronics]
Direct Link  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST3485ECDR Datasheet(HTML) 16 Page - STMicroelectronics

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Test circuits and typical characteristics
ST3485EB, ST3485EC, ST3485EI, ST3485EIY
16/24
DocID9102 Rev 11
Figure 16: Receiver enable and disable times waveform (test 1)
Figure 17: Receiver enable and disable times waveform (test 2)
Figure 18: Receiver enable and disable times waveform (test 3)
IN
OUT
1.5 V
t PRZH
t PRSH
1.5 V
S1 open
S2 closed
S3 = 1.5 V
3 V
0 V
VOH
0 V
IN
OUT
1.5 V
S1 closed
S2 open
S3 = -1.5 V
t PRZL
t PRSL
1.5 V
3 V
0 V
VCC
VOL
IN
OUT
1.5 V
t PRHZ
VOH - 0.25 V
S1 open
S2 closed
S3 = 1.5 V
3 V
0 V
VOH
0 V



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