參數(shù)資料
型號(hào): SL811S
廠商: CYPRESS SEMICONDUCTOR CORP
元件分類: 總線控制器
英文描述: USB Dual Speed Slave Controller
中文描述: UNIVERSAL SERIAL BUS CONTROLLER, PQCC28
封裝: PLASTIC, LCC-28
文件頁(yè)數(shù): 22/27頁(yè)
文件大?。?/td> 181K
代理商: SL811S
SL811S/T
Document #: 38-08009 Rev. **
Page 22 of 27
7.5
Bus Interface Timing Requirements
7.5.1
I/O Write Cycle
Note: nCS can be held low for multiple write cycles provided nWR is cycled.
Note:
10. I/O Write Cycle Time in Auto Inc Mode is 150 ns minimum.
Parameter
Description
Min.
Typical
Max.
twr
Write pulse width
65 ns
twcsu
Chip select set-up to nWR
0 ns
twshld
Chip select hold time
0 ns
twasu
A0 address set-up time
65 ns
twahld
A0 address hold time
10 ns
twdsu
Data to write low set-up time
60 ns
twdhld
Data hold time after write high
nCS inactive to nCS
[10]
asserted
5 ns
85 ns
[10]
tcscs
nWR
A0
D0-D7
DATA
twr
twahld
twdhld
twasu
twdsu
twdsu
twdhld
I/O Write Cycle to Register or Memory Buffer
Register or Memory
Address
twshld
nCS
twcsu
Tcscs See Note.
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