Cypress CY7C6435x Manual De Usuario

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CY7C6431x
CY7C64345, CY7C6435x
Document Number: 001-12394 Rev *G
Page 19 of 28
Table 15.AC Characteristics – USB Data Timings
Symbol
Description
Conditions
Min
Typ
Max
Units
Tdrate
Full speed data rate
Average bit rate
9
12
15
MHz
Tdjr1
Receiver data jitter tolerance
To next transition
-18.5
18.5
ns
Tdjr2
Receiver data jitter tolerance
To pair transition
-9
9
ns
Tudj1
Driver differential jitter
To next transition
-3.5
3.5
ns
Tudj2
Driver differential jitter
To pair transition
-4.0
– 
4.0
ns 
Tfdeop
Source jitter for differential transition
To SE0 transition
-2
5
ns
Tfeopt
Source SE0 interval of EOP
160
175
ns
Tfeopr
Receiver SE0 interval of EOP
82
ns
Tfst
Width of SE0 interval during differential 
transition
14
ns
Table 16.AC Characteristics – USB Driver
Symbol
Description
Conditions
Min
Typ
Max
Units
Tr
Transition rise time
50 pF
4
20
ns
Tf
Transition fall time
50 pF
4
20
ns
TR
Rise/fall time matching
90.00
111.1
%
Vcrs
Output signal crossover voltage
1.3
2.0
V