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參數(shù)資料
| 型號： | UPD72012CU-XXX |
| 廠商： | NEC Corp. |
| 英文描述： | HUB CONTROLLER FOR UNIVERSAL SERIAL BUS |
| 中文描述： | 集線器控制器通用串行總線 |
| 文件頁數(shù)： | 27/36頁 |
| 文件大?。?/td> | 414K |
| 代理商： | UPD72012CU-XXX |
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Data Sheet S13918EJ3V0DS
27
μ
PD72012
(4) Device event timing
Parameter
Symbol
Conditions
MIN.
TYP.
MAX.
Unit
Time from internal power becoming
effective until device pulls D+/D–
above VIHZ (MIN.) (signal attach)
t
SIGATT
100
ms
Time for USB system software to
perform debounce after attach
t
ATTDB
100
ms
Time for which bus is continuously in
idling state, maximum time device
draws more power than suspend
power
t
2SUSP
10
ms
Maximum value of average suspend
time
t
SUSAVGI
1
s
Period to drive upstream on resume
t
DRSMUP
1
15
ms
Resume restore period
t
RSMRCY
Supplied by USB system
software
10
ms
Time to detect reset from upstream
t
DETRST
Same as t
URLSE0
2.5
10000
μ
s
Reset restore time
t
RSTRCY
10
ms
Inter-packet delay
t
IPD
2
Bit time
Inter-packet delay of device
responses using detachable cable
t
PDRSP1
6.5
Bit time
Inter-packet delay of device
responses using captive cable
t
PDRSP2
7.5
Bit time
SetAddress() completion time
t
DSETADDR
50
ms
Time to complete standard request
without data stage
t
DRQCMPLTND
50
ms
Time to deliver first and subsequent
data (excluding last) for standard
request
t
DRETDATA1
500
ms
Time to deliver last data for standard
request
t
DRETDATAN
50
ms
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相關代理商/技術參數(shù) |
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| UPD720130GC-9EU-A | 制造商:NEC Electronics Corporation 功能描述:BRIDGE USB TO IDE SMD TQFP100 |
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| UPD720200A | 制造商:Renesas Electronics Corporation 功能描述: |
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