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ST1480AB Fiches technique(PDF) 8 Page - STMicroelectronics

No de pièce ST1480AB
Description  3.3 V powered, 15 kV ESD protected, up to 12 Mbps true RS-485/RS-422 transceiver
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Fabricant  STMICROELECTRONICS [STMicroelectronics]
Site Internet  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

ST1480AB Fiches technique(HTML) 8 Page - STMicroelectronics

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Electrical characteristics
ST1480AB - ST1480AC
8/22
Note:
1
ΔVOD and ΔVOC are the changes in VOD and VOC, respectively, when the DI input changes
state.
2
Measured on |tPLH(A)-tPHL(A)| and |tPLH(B)-tPHL(B)|
3
The transceivers are put into shutdown by bring RE high and DE low. If the input are in state
for less than 80ns, the part are guaranteed not to enter shutdown. If the inputs are in this
state for at least 300ns, the parts are guaranteed to have entered shutdown.
Table 11.
Receiver switching characteristics
VCC = 3V to 3.6V, TA = -40 to 85°C, unless otherwise specified. Typical values are referred
to Ta = 25°C)
Symbol
Parameter
Test Conditions
Min.
Typ.
Max.
Unit
tPLH
tPHL
Propagation delay
VID= 0V to 3V, CL1 =15pF
(Figure 13 and Figure 14)
30
50
ns
tRPDS
|tPLH - tPHL| propagation
delay skew
VID= 0V to 3V, CL1 = 15pF
(Figure 13 and Figure 14)
13
ns
tPZL
Output enable time
CRL = 15pF, (Figure 15 and Figure 19)10
20
ns
tPZH
Output enable time
CRL = 15pF, (Figure 15 and Figure 19)10
20
ns
tPHZ
Output disable time
CRL = 15pF, (Figure 15 and Figure 19)10
20
ns
tPLZ
Output disable time
CRL = 15pF, (Figure 15 and Figure 19)10
20
ns
tZH(SHDN)
Receiver enable from
shutdown to output high
CRL = 15pF, (Figure 15 and Figure 19)10
20
ns
tZL(SHDN)
Receiver enable from
shutdown to output low
CRL = 15pF, (Figure 15 and Figure 19)20
40
µs


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