參數(shù)資料
型號(hào): ADSP-2185KST-115
廠商: ANALOG DEVICES INC
元件分類(lèi): 數(shù)字信號(hào)處理
英文描述: DSP Microcomputer
中文描述: 16-BIT, 16.67 MHz, OTHER DSP, PQFP100
封裝: METRIC, PLASTIC, TQFP-100
文件頁(yè)數(shù): 21/31頁(yè)
文件大小: 223K
代理商: ADSP-2185KST-115
ADSP-2185L
–21–
REV. A
Parameter
Min
Max
Unit
Memory Read
Timing Requirements
:
t
RDD
t
AA
t
RDH
RD
Low to Data Valid
A0–A13,
xMS
to Data Valid
Data Hold from
RD
High
0.5t
CK
– 9 + w
0.75t
CK
– 12.5 + w
ns
ns
ns
1
Switching Characteristics
:
t
RP
t
CRD
t
ASR
t
RDA
t
RWR
RD
Pulsewidth
CLKOUT High to
RD
Low
A0–A13,
xMS
Setup before
RD
Low
A0–A13,
xMS
Hold after
RD
Deasserted
RD
High to
RD
or
WR
Low
0.5t
CK
– 5 + w
0.25t
CK
– 5
0.25t
CK
– 6
0.25t
CK
– 3
0.5t
CK
– 5
ns
ns
ns
ns
ns
0.25t
CK
+ 7
w = wait states x t
CK
xMS
=
PMS
,
DMS
,
CMS
,
IOMS
,
BMS
.
CLKOUT
A0–A13
D
t
RDA
t
RWR
t
RP
t
ASR
t
CRD
t
RDD
t
AA
t
RDH
DMS
,
PMS
,
BMS
,
IOMS
,
CMS
RD
WR
Figure 22. Memory Read
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