WEDPNF8M722V-1215BM datasheet(9/43 Pages) WEDC

Part #	WEDPNF8M722V-1215BM

Description	8Mx72 Synchronous DRAM 16Mb Flash Mixed Module Multi-Chip Package

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Manufacturer	WEDC [White Electronic Designs Corporation]

Direct Link	http://www.whiteedc.com

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White Electronic Designs Corporation • (602) 437-1520 • www.whiteedc.com

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WEDPNF8M722V-XBX

TABLE 1 - BURST DEFINITION

Burst

Starting Column

Order of Accesses Within a Burst

Length

Address

A0

2

0

0-1

1

1-0

A1

A0

0

0-1-2-3

4

0

1

1-2-3-0

1-0-3-2

1

0

2-3-0-1

1

3-0-1-2

3-2-1-0

A2

A1

A0

0

0-1-2-3-4-5-6-7

0

1

1-2-3-4-5-6-7-0

1-0-3-2-5-4-7-6

0

1

0

2-3-4-5-6-7-0-1

2-3-0-1-6-7-4-5

8

0

1

3-4-5-6-7-0-1-2

3-2-1-0-7-6-5-4

1

0

4-5-6-7-0-1-2-3

1

0

1

5-6-7-0-1-2-3-4

5-4-7-6-1-0-3-2

1

0

6-7-0-1-2-3-4-5

6-7-4-5-2-3-0-1

1

7-0-1-2-3-4-5-6

7-6-5-4-3-2-1-0

Full

n = A0-9/8/7

Cn, Cn + 1, Cn + 2

Page

Cn + 3, Cn + 4...

Not Supported

(y)

(location 0-y)

…Cn - 1,

Cn…

Type = Sequential

Type = Interleaved

FIG. 3 MODE REGISTER DEFINITION

NOTES:

1. For full-page accesses: y = 512.

2. For a burst length of two, A1-8 select the block-of-two burst; A0 selects the

starting column within the block.

3. For a burst length of four, A2-8 select the block-of-four burst; A0-1 select the

starting column within the block.

4. For a burst length of eight, A3-8 select the block-of-eight burst; A0-2 select

the starting column within the block.

5. For a full-page burst, the full row is selected and A0-8 select the starting

column.

6. Whenever a boundary of the block is reached within a given sequence

above, the following access wraps within the block.

7. For a burst length of one, A0-8 select the unique column to be accessed, and

Mode Register bit M3 is ignored.

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