Motorola MSC8101 ADS User Manual download pdf (Page 65)

MOTOROLA MSC8101ADS RevB User’s Manual 65

Power

7 - Power

7•1 Power rails.

There 3 power buses with the MSC8101:

1)I/O -3.3V nominal

1)Internal Logic - 1.5V nominal.

2)PLL - 1.5V nominal.

and there are 3 power buses on the MSC8101ADS:

1)5V bus

2)3.3V bus

3)V

logic

bus

FIGURE 7-1 ADS Power Scheme

To support off-board application development, two of the power buses are connected to the ex-

pansion connectors, so that external logic may be powered directly from the board. The maximum

current allowed to be drawn from the board on each bus is shown in TABLE 7-1. "Off-Board Appli-

3.3+-10%V

0.9-2.2.V

MSC8101

QVCC

VCCSYN

ADS Logic & Peripherals

NVCC

Expansion Con.

1V5CR

VCCSYN1

5V0

3V3

P26

JS3

JS2

3V3IO

1V5

JS5

JS4

JS1

QHCC

JP3

CODEC

5VExt

Frees

cale Semiconductor,

Freescale Semiconductor, Inc.

For More Information On This Product,

Go to: www.freescale.com

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Motorola MSC8101 ADS User Manual Page 65

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