參數(shù)資料
型號: CYDD18S72V18-167BGI
廠商: CYPRESS SEMICONDUCTOR CORP
元件分類: SRAM
英文描述: 256K X 72 DUAL-PORT SRAM, 9 ns, PBGA484
封裝: 23 X 23 MM, 2.03 MM HEIGHT, 1 MM PITCH, PLASTIC, BGA-484
文件頁數(shù): 24/53頁
文件大?。?/td> 2422K
代理商: CYDD18S72V18-167BGI
FullFlex
Document #: 38-06072 Rev. *I
Page 30 of 53
tRSR
Master Reset Recovery Time
5
cycles
tRSF
Master Reset to Outputs Inactive/Hi-Z
12
15
18
ns
tRDY[37]
Master Reset Release to Port Ready
1024
cycles
tCORDY[38]
C Rise to Port Ready
8[34]
9.5[34]
11[34]
ns
Table 19.JTAG Timing
Parameter
Description
–200[27]
–167[27]
–133
Unit
Min.
Max.
Min.
Max.
Min.
Max.
fJTAG
JTAG TAP Controller Frequency
20
MHz
tTCYC
TCK Cycle Time
50
ns
tTH
TCK High Time
20
ns
tTL
TCK Low Time
20
ns
tTMSS
TMS Set-up to TCK Rise
10
ns
tTMSH
TMS Hold to TCK Rise
10
ns
tTDIS
TDI Set-up to TCK Rise
10
ns
tTDIH
TDI Hold to TCK Rise
10
ns
tTDOV
TCK Low to TDO Valid
10
ns
tTDOX
TCK Low to TDO Invalid
0
ns
tJXZ
TCK Low to TDO hi-Z
15
ns
tJZX
TCK Low to TDO Active
15
ns
Notes:
37. READY is a wired OR capable output with a weak pull-down. For a decreased falling delay, connect a 250
resistor to VSS.
38. Add this propagation delay after tRDY for all Master Reset Operations
Table 18.Master Reset Timing
Parameter
Description
–200[27]
–167[27]
–133
Unit
Min.
Max.
Min.
Max.
Min.
Max.
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