DSP56F826PB 查看數據表（PDF） - Motorola => Freescale

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DSP56F826PB

16-bit Hybrid Controller

Motorola => Freescale 

Freescale Semiconductor, Inc.

Supply Voltage Sequencing and Separation Cautions

100

75

IDD Digital IDD Analog IDD Total

50

25

0

20

40

60

80

Freq. (MHz)

Figure 3. Maximum Run IDD vs. Frequency (see Note 6. in Table 7)

3.3 Supply Voltage Sequencing and Separation Cautions

Figure 4 shows two situations to avoid in sequencing the VDD and VDDIO, VDDA supplies.

3.3V

2.5V

1

VDDIO, VDDA

2

Supplies Stable

VDD

0

Time

Notes: 1. VDD rising before VDDIO, VDDA

2. VDDIO, VDDA rising much faster than VDD

Figure 4. Supply Voltage Sequencing and Separation Cautions

56F826 Technical Data

19

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