参数资料
型号: DSP56F801EVM
厂商: Freescale Semiconductor
文件页数: 11/48页
文件大小: 0K
描述: KIT EVALUATION FOR DSP56F801
标准包装: 1
AC Electrical Characteristics
56F801 Technical Data, Rev. 17
Freescale Semiconductor
19
Figure 3-1 Maximum Run IDD vs. Frequency (see Note 7. in Table 3-15)
3.3 AC Electrical Characteristics
Timing waveforms in Section 3.3 are tested using the V
IL and VIH levels specified in the DC Characteristics
table. In Figure 3-2 the levels of V
IH and VIL for an input signal are shown.
Figure 3-2 Input Signal Measurement References
Figure 3-3 shows the definitions of the following signal states:
Active state, when a bus or signal is driven, and enters a low impedance state.
Tri-stated, when a bus or signal is placed in a high impedance state.
Data Valid state, when a signal level has reached VOL or VOH.
Data Invalid state, when a signal level is in transition between VOL and VOH.
0
40
80
120
160
10
20
30
40
50
60
70
80
Freq. (MHz)
ID
D
(mA)
IDD Digital
IDD Analog
IDD Total
VIH
VIL
Fall Time
Input Signal
Note: The midpoint is VIL + (VIH – VIL)/2.
Midpoint1
Low
High
90%
50%
10%
Rise Time
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