參數(shù)資料
型號(hào): TSC21020F-20SCHXXX
廠(chǎng)商: ATMEL CORP
元件分類(lèi): 數(shù)字信號(hào)處理外設(shè)
英文描述: 40-BIT, DSP-FLOATING POINT PROCESSOR, UUC
封裝: DIE
文件頁(yè)數(shù): 17/37頁(yè)
文件大?。?/td> 483K
代理商: TSC21020F-20SCHXXX
TSC21020F
Rev. E – Oct. 05, 1998
24
Memory Write
Parameter
20 MHz
Frequency
Dependency*
Unit
Parameter
Min
Max
Min
Max
Unit
Timing Requirement
tDAAK
xACK Delay from Address, Select
27
27 + 7DT/8
ns
tDWAK
xACK Delay from xWR Low
15
15 + DT/2
ns
tSAK
xACK Setup before CLKIN High
14
14 + DT/4
ns
tHAK
xACK Hold after CLKIN High
0
ns
Switching Characteristic
tDAWH
Address, Select to xWR Deasserted
37
37 + 15DT/16
ns
tDAWL
Address, Select to xWR Low
11
11 + 3DT/8
ns
tWW
xWR Pulse Width
26
26 + 9DT/16
ns
tDDWH
Data Setup before xWR High
23
23 + DT/2
ns
tDWHA
Address, Select Hold after xWR
Deasserted
1
1 + DT/16
ns
tHDWH
Data Hold after xWR Deasserted1
0
DT/16
ns
tDAP
xPAGE Delay from Address, Select
1
ns
tDCKWL CLKIN High to xWR Low
16
26
16 + DT/4
26 + DT/4
ns
tWWR
xWR High to xWR or xRD Low
17
17 + 7DT/16
ns
tDDWR
Data Disable before xWR or xRD
Low
13
13 + 3DT/8
ns
tWDE
xWR Low to Data Enabled
0
DT/16
ns
NOTES
*
DT = tC – 50 ns
1.
See “System Hold Time Calculation” in “Test Conditions” section for calculating hold times given capacitive and DC loads.
x = PM or DM ; Address = PMA23-0, DMA31-0 ; Data = PMD47-0, DMD39-0 ; Select = PMS1-0, DMS3-0; guaranteed by design.
Figure 11. Memory Write
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