參數(shù)資料
型號: DSPB56362AG120
廠商: Freescale Semiconductor
文件頁數(shù): 104/152頁
文件大小: 0K
描述: IC DSP 24BIT AUD 120MHZ 144-LQFP
標(biāo)準(zhǔn)包裝: 60
系列: DSP56K/Symphony
類型: 音頻處理器
接口: 主機(jī)接口,I²C,SAI,SPI
時(shí)鐘速率: 120MHz
非易失內(nèi)存: ROM(126 kB)
芯片上RAM: 42kB
電壓 - 輸入/輸出: 3.30V
電壓 - 核心: 3.30V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 144-LQFP
供應(yīng)商設(shè)備封裝: 144-LQFP(20x20)
包裝: 托盤
External Memory Expansion Port (Port A)
DSP56362 Technical Data, Rev. 4
Freescale Semiconductor
3-29
165
RAS assertion to CAS deassertion
tCSH
2.75
× T
C 4.0
133.5
87.7
ns
166
CAS assertion pulse width
tCAS
1.25
× T
C 4.0
58.5
37.7
ns
167
RAS assertion to CAS assertion
tRCD
1.5
× T
C ± 2
73.0
77.0
48.0
52.0
ns
168
RAS assertion to column address valid
tRAD
1.25
× T
C ± 2
60.5
64.5
39.7
43.7
ns
169
CAS deassertion to RAS assertion
tCRP
2.25
× T
C 4.0
108.5
71.0
ns
170
CAS deassertion pulse width
tCP
1.75
× T
C 4.0
83.5
54.3
ns
171
Row address valid to RAS assertion
tASR
1.75
× T
C 4.0
83.5
54.3
ns
172
RAS assertion to row address not valid
tRAH
1.25
× T
C 4.0
58.5
37.7
ns
173
Column address valid to CAS assertion
tASC
0.25
× T
C 4.0
8.5
4.3
ns
174
CAS assertion to column address not valid
tCAH
1.75
× T
C 4.0
83.5
54.3
ns
175
RAS assertion to column address not valid
tAR
3.25
× T
C 4.0
158.5
104.3
ns
176
Column address valid to RAS deassertion
tRAL
2
× T
C 4.0
96.0
62.7
ns
177
WR deassertion to CAS assertion
tRCS
1.5
× T
C 3.8
71.2
46.2
ns
178
CAS deassertion to WR assertion
tRCH
0.75
× T
C 3.7
33.8
21.3
ns
179
RAS deassertion to WR assertion
tRRH
0.25
× T
C 3.7
8.8
4.6
ns
180
CAS assertion to WR deassertion
tWCH
1.5
× T
C 4.2
70.8
45.8
ns
181
RAS assertion to WR deassertion
tWCR
3
× T
C 4.2
145.8
95.8
ns
182
WR assertion pulse width
tWP
4.5
× T
C 4.5
220.5
145.5
ns
183
WR assertion to RAS deassertion
tRWL
4.75
× T
C 4.3
233.2
154.0
ns
184
WR assertion to CAS deassertion
tCWL
4.25
× T
C 4.3
208.2
137.4
ns
185
Data valid to CAS assertion (write)
tDS
2.25
× T
C 4.0
108.5
71.0
ns
186
CAS assertion to data not valid (write)
tDH
1.75
× T
C 4.0
83.5
54.3
ns
187
RAS assertion to data not valid (write)
tDHR
3.25
× T
C 4.0
158.5
104.3
ns
188
WR assertion to CAS assertion
tWCS
3
× T
C 4.3
145.7
95.7
ns
189
CAS assertion to RAS assertion (refresh)
tCSR
0.5
× T
C 4.0
21.0
12.7
ns
190
RAS deassertion to CAS assertion (refresh)
tRPC
1.25
× T
C 4.0
58.5
37.7
ns
Table 3-13 DRAM Out-of-Page and Refresh Timings, Four Wait States1, 2 (continued)
No.
Characteristics3
Symbol
Expression
20 MHz4
30 MHz4
Unit
Min
Max
Min
Max
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