ST3485EB Просмотр технического описания (PDF) - STMicroelectronics
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ST3485EB
STMicroelectronics
ST3485EB Datasheet PDF : 22 Pages
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Electrical characteristics
ST3485EB - ST3485EC
Table 12.
Symbol
Receiver switching characteristics
VCC = 3 V to 3.6 V, 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
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)
30
50
ns
1
3
ns
10
20
ns
10
20
ns
10
20
ns
10
20
ns
10
20
ns
tZL(SHDN)
Receiver enable from
shutdown to output low
CRL = 15pF, (Figure 14 and Figure 18)
20
40
µs
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 80 ns, the part are guaranteed not to enter shutdown. If the inputs are in this
state for at least 300 ns, the parts are guaranteed to have entered shutdown.
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