参数资料
型号: DSPB56725CAF
厂商: Freescale Semiconductor
文件页数: 15/48页
文件大小: 0K
描述: IC DSP 24BIT 80LQFP
标准包装: 90
系列: DSP56K/Symphony
类型: 音频处理器
接口: 主机接口,I²C,SAI,SPI
时钟速率: 200MHz
非易失内存: 外部
芯片上RAM: 112kB
电压 - 输入/输出: 3.30V
电压 - 核心: 1.00V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 80-LQFP
供应商设备封装: 80-LQFP(14x14)
包装: 托盘
Symphony DSP56724/ DSP56725 Multi-Core Audio Processors, Rev. 2
Freescale Semiconductor
22
47
Start condition hold time
THD;STA
4.0
0.6
μs
48
SCL low period
TLOW
4.7
1.3
μs
49
SCL high period
THIGH
4.0
1.3
μs
50
SCL and SDA rise time7
TR
1000
300
ns
51
SCL and SDA fall time7
TF
—5.0
5.0
ns
52
Data set-up time
TSU;DAT
250
100
ns
53
Data hold time
THD;DAT
0.0
0.0
0.9
μs
54
DSP clock frequency
Filters bypassed
Very Narrow filters enabled
Narrow filters enabled
Wide filters enabled
FOSC
10.6
11.8
13.1
28.5
39.7
61.0
MHz
55
SCL low to data out valid
TVD;DAT
—3.4
0.9
μs
56
Stop condition setup time
TSU;STO
4.0
0.6
μs
57
HREQ in deassertion to last SCL edge (HREQ in
set-up time)
tSU;RQI
0.0
0.0
ns
58
First SCL sampling edge to HREQ output
deassertion2
Filters bypassed
Very Narrow filters enabled
Narrow filters enabled
Wide filters enabled
TNG;RQO
4
× T
C + 30
4
× T
C + 50
4
× T
C + 130
4
× T
C + 230
50.0
70.0
250.0
150.0
50.0
70.0
150.0
250.0
ns
59
Last SCL edge to HREQ output not deasserted2
Filters bypassed
Very Narrow filters enabled
Narrow filters enabled
Wide filters enabled
TAS;RQO
2
× T
C + 30
2
× T
C + 40
2
× T
C + 80
2
× T
C + 130
40
50
90
140
40
50
90
140
ns
Table 10. SHI I2C Protocol Timing (Continued)
Standard I2C
No.
Characteristics1,2,3,4,5
Symbol/
Expression
Standard
Fast-Mode
Unit
Min
Max
Min
Max
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