参数资料
型号: DSP56F826BU80
厂商: Freescale Semiconductor
文件页数: 31/56页
文件大小: 0K
描述: IC DSP 80MHZ 64KB FLASH 100LQFP
标准包装: 90
系列: 56F8xx
核心处理器: 56800
芯体尺寸: 16-位
速度: 80MHz
连通性: EBI/EMI,SCI,SPI,SSI
外围设备: POR,WDT
输入/输出数: 46
程序存储器容量: 67KB(33.5K x 16)
程序存储器类型: 闪存
RAM 容量: 4.5K x 16
电压 - 电源 (Vcc/Vdd): 2.25 V ~ 2.75 V
振荡器型: 外部
工作温度: -40°C ~ 85°C
封装/外壳: 100-LQFP
包装: 托盘
Serial Peripheral Interface (SPI) Timing
56F826 Technical Data, Rev. 14
Freescale Semiconductor
37
3.9 Serial Peripheral Interface (SPI) Timing
Table 3-12 SPI Timing1
Operating Conditions: VSSIO=VSS = VSSA = 0V, VDDA =VDDIO=3.0–3.6V, VDD = 2.25–2.75V, TA = –40° to +85°C, CL ≤ 50pF, fop = 80MHz
1. Parameters are guaranteed by design.
Characteristic
Symbol
Min
Max
Unit
See Figure
Cycle time
Master
Slave
tC
50
25
ns
Figures
Enable lead time
Master
Slave
tELD
25
ns
Figure 3-23
Enable lag time
Master
Slave
tELG
100
ns
Figure 3-23
Clock (SCLK) high time
Master
Slave
tCH
24
12
ns
Figures
Clock (SCLK) low time
Master
Slave
tCL
24.1
12
ns
Figures
Data set-up time required for inputs
Master
Slave
tDS
20
0
ns
Figures
Data hold time required for inputs
Master
Slave
tDH
0
2
ns
Figures
Access time (time to data active from high-impedance state)
Slave
tA
4.8
15
ns
Figure 3-23
Disable time (hold time to high-impedance state)
Slave
tD
3.7
15.2
ns
Figure 3-23
Data Valid for outputs
Master
Slave (after enable edge)
tDV
4.5
20.4
ns
Figures
Data invalid
Master
Slave
tDI
0
ns
Figures
Rise time
Master
Slave
tR
11.5
10.0
ns
Figures
Fall time
Master
Slave
tF
9.7
9.0
ns
Figures
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