參數(shù)資料
型號: TMS320C44PDB-50
英文描述: DSP|32-BIT|CMOS|QFP|304PIN|PLASTIC
中文描述: 數(shù)字信號處理器| 32位|的CMOS | QFP封裝| 304PIN |塑料
文件頁數(shù): 107/132頁
文件大小: 1707K
代理商: TMS320C44PDB-50
SPRS145G
JULY 2000
REVISED FEBRUARY 2002
107
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251
1443
external memory interface
ready-on-write
timings
switching characteristics over recommended operating conditions for an external memory
interface ready-on-write (see Figure 48)
PARAMETER
MIN
MAX
UNIT
td(COH-A)W
Delay time, CLKOUT high to address valid
10
ns
timing requirements for an external memory interface ready-on-write [H = 0.5t
c(CO)
]
(see Figure 48)
MIN
MAX
UNIT
th(RDY)COH
Hold time, READY after CLKOUT high
3
ns
tsu(D)W
tv(RDY)AW
tsu(RDY)COH
Setup time, write data before WE strobe inactive high
2H
17
ns
Valid time, READY after address valid on write
3
ns
Setup time, READY before CLKOUT high
22
ns
tsu(D)W
CLKOUT
PS, DS, IS
td(COH
A)W
A[0:15]
WE
D[0:15]
STRB
tsu(RDY)COH
th(RDY)COH
READY
tv(RDY)AW
Wait Cycle
Figure 48. Ready-on-Write Timings
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