參數(shù)資料
型號: XCB56364PV100
廠商: MOTOROLA INC
元件分類: 數(shù)字信號處理
英文描述: 24-Bit Audio Digital Signal Processor
中文描述: 8-BIT, 100 MHz, OTHER DSP, PQFP112
封裝: QFP-112
文件頁數(shù): 61/162頁
文件大?。?/td> 2405K
代理商: XCB56364PV100
Specifications
External Memory Expansion Port (Port A)
MOTOROLA
DSP56364 Advance Information
2-41
Table 2-16 DRAM Out-of-Page and Refresh Timings, Fifteen Wait States
1, 2
No.
Characteristics
3
Symbol
Expression
Min
Max
Unit
157
Random read or write cycle time
t
RC
16
×
T
C
160.0
ns
158
RAS assertion to data valid (read)
t
RAC
8.25
×
T
C
5.7
76.8
ns
159
CAS assertion to data valid (read)
t
CAC
4.75
×
T
C
5.7
41.8
ns
160
Column address valid to data valid (read)
t
AA
5.5
×
T
C
5.7
49.3
ns
161
CAS deassertion to data not valid (read hold
time)
t
OFF
0.0
0.0
ns
162
RAS deassertion to RAS assertion
t
RP
6.25
×
T
C
4.0
58.5
ns
163
RAS assertion pulse width
t
RAS
9.75
×
T
C
4.0
93.5
ns
164
CAS assertion to RAS deassertion
t
RSH
6.25
×
T
C
4.0
58.5
ns
165
RAS assertion to CAS deassertion
t
CSH
8.25
×
T
C
4.0
78.5
ns
166
CAS assertion pulse width
t
CAS
4.75
×
T
C
4.0
43.5
ns
167
RAS assertion to CAS assertion
t
RCD
3.5
×
T
C
±
2
33.0
37.0
ns
168
RAS assertion to column address valid
t
RAD
2.75
×
T
C
±
2
25.5
29.5
ns
169
CAS deassertion to RAS assertion
t
CRP
7.75
×
T
C
4.0
73.5
ns
170
CAS deassertion pulse width
t
CP
6.25
×
T
C
4.0
58.5
ns
171
Row address valid to RAS assertion
t
ASR
6.25
×
T
C
4.0
58.5
ns
172
RAS assertion to row address not valid
t
RAH
2.75
×
T
C
4.0
23.5
ns
173
Column address valid to CAS assertion
t
ASC
0.75
×
T
C
4.0
3.5
ns
174
CAS assertion to column address not valid
t
CAH
6.25
×
T
C
4.0
58.5
ns
175
RAS assertion to column address not valid
t
AR
9.75
×
T
C
4.0
93.5
ns
176
Column address valid to RAS deassertion
t
RAL
7
×
T
C
4.0
66.0
ns
177
WR deassertion to CAS assertion
t
RCS
5
×
T
C
3.8
46.2
ns
178
CAS deassertion to WR
5
assertion
t
RCH
1.75
×
T
C
3.7
13.8
ns
179
RAS deassertion to WR
5
assertion
t
RRH
0.25
×
T
C
2.0
0.5
ns
F
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
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