参数资料
型号: DSPB56362AG120
厂商: Freescale Semiconductor
文件页数: 107/152页
文件大小: 0K
描述: IC DSP 24BIT AUD 120MHZ 144-LQFP
标准包装: 60
系列: DSP56K/Symphony
类型: 音频处理器
接口: 主机接口,I²C,SAI,SPI
时钟速率: 120MHz
非易失内存: ROM(126 kB)
芯片上RAM: 42kB
电压 - 输入/输出: 3.30V
电压 - 核心: 3.30V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 144-LQFP
供应商设备封装: 144-LQFP(20x20)
包装: 托盘
External Memory Expansion Port (Port A)
DSP56362 Technical Data, Rev. 4
3-32
Freescale Semiconductor
Table 3-15 DRAM Out-of-Page and Refresh Timings, Eleven Wait States1, 2
No.
Characteristics3
Symbol
Expression4
100 MHz
Unit
Min
Max
157
Random read or write cycle time
tRC
12
× T
C
120.0
ns
158
RAS assertion to data valid (read)
tRAC
6.25
× T
C 7.0
55.5
ns
159
CAS assertion to data valid (read)
tCAC
3.75
× T
C 7.0
30.5
ns
160
Column address valid to data valid (read)
tAA
4.5
× T
C 7.0
38.0
ns
161
CAS deassertion to data not valid (read hold time)
tOFF
0.0
ns
162
RAS deassertion to RAS assertion
tRP
4.25
× T
C 4.0
38.5
ns
163
RAS assertion pulse width
tRAS
7.75
× T
C 4.0
73.5
ns
164
CAS assertion to RAS deassertion
tRSH
5.25
× T
C 4.0
48.5
ns
165
RAS assertion to CAS deassertion
tCSH
6.25
× T
C 4.0
58.5
ns
166
CAS assertion pulse width
tCAS
3.75
× T
C 4.0
33.5
ns
167
RAS assertion to CAS assertion
tRCD
2.5
× T
C ± 4.0
21.0
29.0
ns
168
RAS assertion to column address valid
tRAD
1.75
× T
C ± 4.0
13.5
21.5
ns
169
CAS deassertion to RAS assertion
tCRP
5.75
× T
C 4.0
53.5
ns
170
CAS deassertion pulse width
tCP
4.25
× T
C 4.0
38.5
ns
171
Row address valid to RAS assertion
tASR
4.25
× T
C 4.0
38.5
ns
172
RAS assertion to row address not valid
tRAH
1.75
× T
C 4.0
13.5
ns
173
Column address valid to CAS assertion
tASC
0.75
× T
C 4.0
3.5
ns
174
CAS assertion to column address not valid
tCAH
5.25
× T
C 4.0
48.5
ns
175
RAS assertion to column address not valid
tAR
7.75
× T
C 4.0
73.5
ns
176
Column address valid to RAS deassertion
tRAL
6
× T
C 4.0
56.0
ns
177
WR deassertion to CAS assertion
tRCS
3.0
× T
C 4.0
26.0
ns
178
CAS deassertion to WR5 assertion
tRCH
1.75
× T
C 4.0
13.5
ns
179
RAS deassertion to WR5 assertion
tRRH
0.25
× T
C 3.0
ns
0.25
× T
C 2.0
0.5
180
CAS assertion to WR deassertion
tWCH
5
× T
C 4.2
45.8
ns
181
RAS assertion to WR deassertion
tWCR
7.5
× T
C 4.2
70.8
ns
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