參數(shù)資料
型號: DSPB56367AG150
廠商: Freescale Semiconductor
文件頁數(shù): 44/100頁
文件大小: 0K
描述: IC DSP 24BIT 150MHZ 144-LQFP
標準包裝: 60
系列: DSP56K/Symphony
類型: 音頻處理器
接口: 主機接口,I²C,SAI,SPI
時鐘速率: 150MHz
非易失內(nèi)存: ROM(240 kB)
芯片上RAM: 69kB
電壓 - 輸入/輸出: 3.30V
電壓 - 核心: 1.80V
工作溫度: -40°C ~ 95°C
安裝類型: 表面貼裝
封裝/外殼: 144-LQFP
供應商設(shè)備封裝: 144-LQFP(20x20)
包裝: 托盤
External Memory Expansion Port (Port A)
DSP56367 Technical Data, Rev. 2.1
3-24
Freescale Semiconductor
173
Column address valid to CAS assertion
tASC
0.75
× TC 4.0
3.5
ns
174
CAS assertion to column address not valid
tCAH
5.25
× TC 4.0
48.5
ns
175
RAS assertion to column address not valid
tAR
7.75
× TC 4.0
73.5
ns
176
Column address valid to RAS deassertion
tRAL
6
× TC 4.0
56.0
ns
177
WR deassertion to CAS assertion
tRCS
3.0
× TC 4.0
26.0
ns
178
CAS deassertion to WR4 assertion
tRCH
1.75
× TC 4.0
13.5
ns
179
RAS deassertion to WR4 assertion
tRRH
0.25
× TC 2.0
0.5
ns
180
CAS assertion to WR deassertion
tWCH
5
× TC 4.2
45.8
ns
181
RAS assertion to WR deassertion
tWCR
7.5
× TC 4.2
70.8
ns
182
WR assertion pulse width
tWP
11.5
× TC 4.5
110.5
ns
183
WR assertion to RAS deassertion
tRWL
11.75
× TC 4.3
113.2
ns
184
WR assertion to CAS deassertion
tCWL
10.25
× TC 4.3
103.2
ns
185
Data valid to CAS assertion (write)
tDS
5.75
× TC 4.0
53.5
ns
186
CAS assertion to data not valid (write)
tDH
5.25
× TC 4.0
48.5
ns
187
RAS assertion to data not valid (write)
tDHR
7.75
× TC 4.0
73.5
ns
188
WR assertion to CAS assertion
tWCS
6.5
× TC 4.3
60.7
ns
189
CAS assertion to RAS assertion (refresh)
tCSR
1.5
× TC 4.0
11.0
ns
190
RAS deassertion to CAS assertion (refresh)
tRPC
2.75
× TC 4.0
23.5
ns
191
RD assertion to RAS deassertion
tROH
11.5
× TC 4.0
111.0
ns
192
RD assertion to data valid
tGA
10
× TC 7.0
93.0
ns
193
RD deassertion to data not valid5
tGZ
0.0
ns
194
WR assertion to data active
0.75
× TC 0.3
7.2
ns
195
WR deassertion to data high impedance
0.25
× TC
—2.5
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 The asynchronous delays specified in the expressions are valid for DSP56367.
4 Either t
RCH or tRRH must be satisfied for read cycles.
5 RD deassertion will always occur after CAS deassertion; therefore, the restricted timing is t
OFF and not tGZ.
Table 3-12
DRAM Out-of-Page and Refresh Timings, Eleven Wait States1, 2, 3 (continued)
No.
Characteristics
Symbol
Expression
100 MHz
Unit
Min
Max
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