Electrical Specifications

MR2A16A Data Sheet, Rev. 4

Freescale Semiconductor

3

Electrical Specifications

Absolute Maximum Ratings

This device contains circuitry to protect the inputs against damage caused by high static voltages or

electric fields; however, it is advised that normal precautions be taken to avoid application of any voltage

greater than maximum rated voltages to these high-impedance (Hi-Z) circuits.

The device also contains protection against external magnetic fields. Precautions should be taken to

avoid application of any magnetic field more intense than the maximum field intensity specified in the

maximum ratings.

Table 2. Operating Modes

Mode

Current

H

XXXX

Not selected

Hi-Z

Hi-Z

L

H

H

X

X

Output disabled

Hi-Z

Hi-Z

L

X

X

H

H

Output disabled

Hi-Z

Hi-Z

L

LHLH

Lower byte read

Hi-Z

L

L

H

H

L

Upper byte read

Hi-Z

L

L

H

L

L

Word read

L

X

L

L

H

Lower byte write

Hi-Z

L

X

L

H

L

Upper byte write

Hi-Z

L

X

L

L

L

Word write

NOTES:

1

H = high, L = low, X = don’t care

2

Hi-Z = high impedance