ST3485E Просмотр технического описания (PDF) - STMicroelectronics
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ST3485E Datasheet PDF : 22 Pages
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Electrical characteristics
ST3485E
Table 11.
Symbol
Receiver switching characteristics
VCC = 3V to 3.6V, TA = -40 to 85°C, unless otherwise specified. Typical values are referred
to Ta = 25°C)
Parameter
Test Conditions
Min. Typ. Max. Unit
tPLH
tPHL
tRPDS
Propagation delay
|tPLH - tPHL| Propagation
delay skew
tPZL
tPZH
tPHZ
tPLZ
tZH(SHDN)
Output enable time
Output enable time
Output disable time
Output disable time
Receiver enable from
shutdown to output high
tZL(SHDN)
Receiver enable from
shutdown to output low
VID =0V to 3V, CL1 = 15pF
(Figure 12. and Figure 13.)
VID =0V to 3V, CL1 = 15pF
(Figure 12. and Figure 13.)
CRL = 15pF, (Figure 14. and Figure 18.)
CRL = 15pF, (Figure 14. and Figure 18.)
CRL = 15pF, (Figure 14. and Figure 18.)
CRL = 15pF, (Figure 14. and Figure 18.)
CRL = 15pF, (Figure 14. and Figure 18.)
CRL = 15pF, (Figure 14. and Figure 18.)
30
50
ns
1
3
ns
10
20
ns
10
20
ns
10
20
ns
10
20
ns
10
20
ns
20
40
µs
Note: 1 ∆VOD and ∆VOC 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.
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