A43L1632

PRELIMINARY

(December, 2004, Version 0.0)

12

AMIC Technology, Corp.

Power Up Sequence

1. Apply power and start clock, Attempt to maintain CKE = “H”, DQM = “H” and the other pins are NOP condition at inputs.

2. Maintain stable power, stable clock and NOP input condition for a minimum of 200

µs.

3. Issue precharge commands for all banks of the devices.

4. Issue 2 or more auto-refresh commands.

5. Issue a mode register set command to initialize the mode register.

cf.) Sequence of 4 & 5 may be changed.

The device is now ready for normal operation.

Burst Sequence (Burst Length = 4)

Initial address

A1

A0

Sequential

Interleave

0

0

0

1

2

3

0

1

2

3

0

1

1

2

3

0

1

0

3

2

1

0

2

3

0

1

2

3

0

1

1

1

3

0

1

2

3

2

1

0

Burst Sequence (Burst Length = 8)

Initial address

A2

A1

A0

Sequential

Interleave

0

0

0

0

1

2

3

4

5

6

7

0

1

2

3

4

5

6

7

0

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

0

1

1

3

4

5

6

7

0

1

2

3

2

1

0

7

6

5

4

1

0

0

4

5

6

7

0

1

2

3

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

1

0

6

7

0

1

2

3

4

5

6

7

4

5

2

3

0

1

1

1

1

7

0

1

2

3

4

5

6

7

6

5

4

3

2

1

0