Document No.: FT_000589
FT313H USB2.0 HS Host Controller Datasheet Version 1.1
Clearance No.: FTDI# 318
Input voltage on
pin X1/CLKIN
-
3.3
-
V
Recommended accuracy of the clock frequency is 50ppm for the crystal.
Table 6-8 System clock characteristics
Analog I/O pins (DP/DM) dynamic characteristics:
Parameter
Description
Minimum
Typical
Maximum
Units
Conditions
Driver characteristic for high speed
High speed differential
rise time
Thsr
Thsf
500
500
-
-
-
-
ps
ps
-
-
High speed differential
fall time
Driver characteristic for full speed
Cl=50pF
Tfr
Tff
Rise time of DP/DM
Fall time of DP/DM
4
4
-
-
20
20
ns
ns
10%~90% of |Voh–Vol|
Cl=50pF
10%~90% of |Voh–Vol|
The first transition
exclude from the
idle mode
Differential rise/fall
time matching
Tfrma
90
-
110
%
Driver characteristic for low speed
Cl=200pF~600pF
Tlr
Tlf
Rise time of DP/DM
Fall time of DP/DM
75
75
-
-
300
300
ns
ns
10%~90% of |Voh–Vol|
Cl=200pF~600pF
10%~90% of |Voh–Vol|
The first transition
exclude from the
idle mode
Differential rise/fall
time matching
Tlrma
80
-
125
%
Table 6-9 Analog I/O pins characteristics
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45
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