MSC8144 datasheet(25/80 Pages) FREESCALE

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Electrical Characteristics

MSC8144 Quad Core Digital Signal Processor Data Sheet, Rev. 1

Freescale Semiconductor

Electrical Characteristics

This document contains detailed information on power considerations, DC/AC electrical characteristics, and AC timing

specifications. For additional information, see the MSC8144 Reference Manual.

2.1

Maximum Ratings

In calculating timing requirements, adding a maximum value of one specification to a minimum value of another specification

does not yield a reasonable sum. A maximum specification is calculated using a worst case variation of process parameter values

in one direction. The minimum specification is calculated using the worst case for the same parameters in the opposite direction.

Therefore, a “maximum” value for a specification never occurs in the same device with a “minimum” value for another

specification; adding a maximum to a minimum represents a condition that can never exist.

AH17

Reserved1

—

AH18

Reserved1

—

AH19

Reserved1

—

AH20

Reserved1

—

AH21

Reserved1

—

AH22

Reserved1

—

AH23

Reserved1

—

AH24

Reserved1

—

AH25

Reserved1

—

AH26

Reserved1

—

AH27

Reserved1

—

AH28

Reserved1

—

Notes:

Reserved signals should be disconnected for compatibility with future revisions of the device.

For signals with same functionality in all modes the appropriate cells are empty.

The choice between GPIO function and other function is by GPIO registers setup. For configuration details, see Chapter 23,

GPIO in the MSC8144 Reference Manual.

Open-drain signal.

Internal 20 K

Ω pull-up resistor.

For signals with GPIO functionality, the open-drain and internal 20 K

Ω pull-up resistor can be configured by GPIO register

programming. See Chapter 23, GPIO of the MSC8144 Reference Manual for configuration details.

CAUTION

This device contains circuitry protecting against damage

due to high static voltage or electrical fields; however,

normal precautions should be taken to avoid exceeding

maximum voltage ratings. Reliability is enhanced if unused

inputs are tied to an appropriate logic voltage level (for

example, either GND or VDD).

Table 1. Signal List by Ball Number (continued)

Ball

Number

Signal Name

Power-

Reset

Value

I/O Multiplexing Mode2

Ref.

Supply

0 (000)

1 (001)

2 (010)

3 (011)

4 (100)

5 (101)

6 (110)

7 (111)

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