參數(shù)資料
型號: DSP56364P
廠商: 飛思卡爾半導(dǎo)體(中國)有限公司
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: 24位音頻數(shù)字信號處理器
文件頁數(shù): 47/148頁
文件大?。?/td> 1204K
代理商: DSP56364P
External Memory Expansion Port (Port A)
DSP56364 Technical Data, Rev. 4
Freescale Semiconductor
3-31
186
CAS assertion to data not valid (write)
t
DH
3.25
×
T
C
4.0
45.2
36.6
ns
187
RAS assertion to data not valid (write)
t
DHR
5.75
×
T
C
4.0
83.1
67.9
ns
188
WR assertion to CAS assertion
t
WCS
5.5
×
T
C
4.3
79.0
64.5
ns
189
CAS assertion to RAS assertion
(refresh)
t
CSR
1.5
×
T
C
4.0
18.7
14.8
ns
190
RAS deassertion to CAS assertion
(refresh)
t
RPC
1.75
×
T
C
4.0
22.5
17.9
ns
191
RD assertion to RAS deassertion
t
ROH
8.5
×
T
C
4.0
124.8
102.3
ns
192
RD assertion to data valid
t
GA
7.5
×
T
C
7.5
106.1
ns
7.5
×
T
C
6.5
87.3
ns
193
RD deassertion to data not valid
3
t
GZ
0.0
0.0
0.0
ns
194
WR assertion to data active
0.75
×
T
C
0.3
11.1
9.1
ns
195
WR deassertion to data high
impedance
0.25
×
T
C
3.8
3.1
ns
1
The number of wait states for out-of-page access is specified in the DCR.
2
The refresh period is specified in the DCR.
3
RD deassertion will always occur after CAS deassertion; therefore, the restricted timing is t
OFF
and not t
GZ
.
4
The asynchronous delays specified in the expressions are valid for DSP56364.
5
Either t
RCH
or t
RRH
must be satisfied for read cycles.
Table 3-15 DRAM Out-of-Page and Refresh Timings, Eleven Wait States
1, 2
No.
Characteristics
3
Symbol
Expression
4
Min
Max
Unit
157
Random read or write cycle time
t
RC
12
×
T
C
120.0
ns
158
RAS assertion to data valid (read)
t
RAC
6.25
×
T
C
7.0
55.5
ns
159
CAS assertion to data valid (read)
t
CAC
3.75
×
T
C
7.0
30.5
ns
160
Column address valid to data valid (read)
t
AA
4.5
×
T
C
7.0
38.0
ns
161
CAS deassertion to data not valid (read hold time)
t
OFF
0.0
ns
162
RAS deassertion to RAS assertion
t
RP
4.25
×
T
C
4.0
38.5
ns
163
RAS assertion pulse width
t
RAS
7.75
×
T
C
4.0
73.5
ns
Table 3-14 DRAM Out-of-Page and Refresh Timings, Eight Wait States
1, 2
(continued)
No.
Characteristics
3
Symbol
Expression
4
66 MHz
80 MHz
Unit
Min
Max
Min
Max
相關(guān)PDF資料
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DSP56366P 24-Bit Audio Digital Signal Processor
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DSP56367P 24-Bit Audio Digital Signal Processor
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
DSP56364UM 制造商:未知廠家 制造商全稱:未知廠家 功能描述:DSP56364 24-Bit Digital Signal Processor User's Manual
DSP56366 制造商:未知廠家 制造商全稱:未知廠家 功能描述:DSP56366 24-Bit Audio Digital Signal Processor
DSP56366P 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:24-Bit Audio Digital Signal Processor
DSP56366UM 制造商:FREESCALE 制造商全稱:Freescale Semiconductor, Inc 功能描述:24-Bit Audio Digital Signal Processor
DSP56367 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Optoelectronic