參數(shù)資料
型號： UPD720130
廠商： NEC Corp.
英文描述： USB2.0 to IDE Bridge
中文描述： USB2.0轉(zhuǎn)IDE橋
文件頁數(shù)： 25/44頁
文件大?。?/td> 316K
代理商： UPD720130
Data Sheet S16302EJ3V0DS
25
μ
PD720130
(2/2)
Parameter
Symbol
Conditions
Min.
Max.
Unit
High-speed Source Electrical Characteristics
Rise time (10% - 90%)
t
HSR
500
ps
Fall time (90% - 10%)
t
HSF
500
ps
Driver waveform
See
Figure 3-6
.
High-speed data rate
t
HSDRAT
479.760
480.240
Mbps
Microframe interval
t
HSFRAM
124.9375
125.0625
μ
s
Consecutive microframe interval difference
t
HSRFI
4 high-
speed
Bit
times
Data source jitter
See
Figure 3-6
.
Receiver jitter tolerance
See
Figure 3-4
.
Device Event Timings
Time from internal power good to device
pulling D+ beyond V
IHZ
(min.) (signaling
attached)
t
SIGATT
100
ms
Debounce interval provided by USB
system software after attach
t
ATTDB
100
ms
Inter-packet delay for full-speed
t
IPD
2
Bit
times
Inter-packet delay for device response
w/detachable cable for full-speed
t
RSPIPD1
6.5
Bit
times
High-speed detection start time from
suspend
t
SCA
2.5
μ
s
Sample time for suspend vs reset
t
CSR
100
875
μ
s
Time to detect bus suspend state
t
SPD
3.000
3.125
ms
Power down under suspend
t
SUS
10
ms
Reversion time from suspend to high-
speed
t
RHS
1.333
μ
s
Drive Chirp K width
t
CKO
1
ms
Finish Chirp K assertion
t
FCA
7
ms
Start sequencing Chirp K-J-K-J-K-J
t
SSC
100
μ
s
Finish sequencing Chirp K-J
t
FSC
500
100
μ
s
Detect sequencing Chirp K-J width
t
CSI
2.5
μ
s
Sample time for sequencing Chirp
t
SCS
1
2.5
ms
Reversion time to high-speed
t
RHA
500
μ
s
High-speed detection start time
t
HDS
2.5
3000
μ
s
Reset completed time
t
DRS
10
ms
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