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UPD720113 Folha de dados(PDF) 22 Page - NEC

Nome de Peças UPD720113
Descrição Electrónicos  USB 2.0 HUB CONTROLLER
PDF  32 Pages
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Fabricante Electrônico  NEC [NEC]
Página de início  http://www.nec.com/
Logo NEC - NEC

UPD720113 Folha de dados(HTML) 22 Page - NEC

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Data Sheet S16618EJ3V0DS
22
µPD720113
(4/4)
Parameter
Symbol
Conditions
MIN.
MAX.
Unit
Hub Event Timings (Continued)
Resume recovery time
tRSMRCY
Remote-wakeup is
enabled
10
ms
Time to detect a reset from upstream for
non high-speed capable devices
tDETRST
2.5
10000
µs
Reset recovery time (Figure 2-20)
tRSTRCY
10
ms
Inter-packet delay for full-speed
tIPD
2
Bit
times
Inter-packet delay for device response with
detachable cable for full-speed
tRSPIPD1
6.5
Bit
times
SetAddress() completion time
tDSETADDR
50
ms
Time to complete standard request with no
data
tDRQCMPLTND
50
ms
Time to deliver first and subsequent
(except last) data for standard request
tDRETDATA1
500
ms
Time to deliver last data for standard
request
tDRETDATAN
50
ms
Time for which a suspended hub will see a
continuous SE0 on upstream before
beginning the high-speed detection
handshake
tFILTSE0
2.5
µs
Time a hub operating in non-suspended
full-speed will wait after start of SE0 on
upstream before beginning the high-speed
detection handshake
tWTRSTFS
2.5
3000
ms
Time a hub operating in high-speed will
wait after start of SE0 on upstream before
reverting to full-speed
tWTREV
3.0
3.125
ms
Time a hub will wait after reverting to full-
speed before sampling the bus state on
upstream and beginning the high-speed
will wait after start of SE0 on upstream
before reverting to full-speed
tWTRSTHS
100
875
ms
Minimum duration of a Chirp K on
upstream from a hub within the reset
protocol
tUCH
1.0
ms
Time after start of SE0 on upstream by
which a hub will complete its Chirp K within
the reset protocol
tUCHEND
7.0
ms
Time between detection of downstream
chip and entering high-speed state
tWTHS
500
µs
Time after end of upstream Chirp at which
hub reverts to full-speed default state if no
downstream Chirp is detected
tWTFS
1.0
2.5
ms



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