參數(shù)資料
型號(hào): ADSP-BF548BBCZ-5A
廠商: ANALOG DEVICES INC
元件分類: 數(shù)字信號(hào)處理
英文描述: 533 MHz Blackfin Embedded Processor: ADSP-BF548BBCZ-5A Temp Range: –40°C to +85°C Package: 400-Ball CSP_BGA BC-400-1
中文描述: 16-BIT, 50 MHz, OTHER DSP, PBGA400
封裝: 17 X 17 MM, ROHS COMPLIANT, CSBGA-400
文件頁(yè)數(shù): 48/100頁(yè)
文件大小: 3095K
代理商: ADSP-BF548BBCZ-5A
ADSP-BF542/ADSP-BF544/ADSP-BF547/ADSP-BF548/ADSP-BF549
Rev. D
|
Page 51 of 100
|
May 2011
Table 35. External Port Bus Request and Grant Cycle Timing with Asynchronous BR
Parameter
Min
Max
Unit
Timing Requirements
tWBR
BR Pulsewidth
2 x tSCLK
ns
Switching Characteristics
tSD
CLKOUT Low to AMSx, Address, and ARE/AWE Disable
5.0
ns
tSE
CLKOUT Low to AMSx, Address, and ARE/AWE Enable
5.0
ns
tDBG
CLKOUT Low to BG Asserted Output Delay
4.0
ns
tEBG
CLKOUT Low to BG Deasserted Output Hold
4.0
ns
tDBH
CLKOUT Low to BGH Asserted Output Delay
3.6
ns
tEBH
CLKOUT Low to BGH Deasserted Output Hold
3.6
ns
Figure 22. External Port Bus Request and Grant Cycle Timing with Asynchronous BR
AMSx
CLKOUT
BG
BGH
BR
ADDR 19-1
ABE1-0
tSD
tSE
tSD
tSE
t
EBG
t
DBG
tEBH
tDBH
AWE
ARE
t
WBR
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