参数资料
型号: DSP56F827FG80E
厂商: Freescale Semiconductor
文件页数: 33/60页
文件大小: 0K
描述: IC HYBRID CTRLR 16BIT 128-LQFP
标准包装: 72
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,PWM,WDT
输入/输出数: 64
程序存储器容量: 136KB(68K x 16)
程序存储器类型: 闪存
RAM 容量: 5K x 16
电压 - 电源 (Vcc/Vdd): 2.25 V ~ 2.75 V
数据转换器: A/D 10x12b
振荡器型: 外部
工作温度: -40°C ~ 85°C
封装/外壳: 128-LQFP
包装: 托盘
Serial Peripheral Interface (SPI) Timing
56F827 Technical Data, Rev. 12
Freescale Semiconductor
39
3.9 Serial Peripheral Interface (SPI) Timing
1. Parameters listed are guaranteed by design.
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
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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