Internet Data Sheet

Rev. 1.1, 2007-02

10

09072006-N4GC-EREN

HY[B/I]39SC128[800/160]FE

128-MBit Synchronous DRAM

Notes

1. For a burst length of two, A1-Ai selects the two-data-element block; A0 selects the first access within the block.

2. For a burst length of four, A2-Ai selects the four-data-element block; A0-A1 selects the first access within the block.

3. For a burst length of eight, A3-Ai selects the eight-data- element block; A0-A2 selects the first access with in the block.

4. Whenever a boundary of the block is reached within a given sequence above, the following access wraps within the block.

4—

0

0

0–1–2–3

0–1–2–3

—

01

1–2–3–0

1–0–3–2

—

10

2–3–0–1

2–3–0–1

—

11

3–0–1–2

3–2–1–0

8

000

0–1–2–3–4–5–6–7

0–1–2–3–4–5–6–7

001

1–2–3–4–5–6–7–0

1–0–3–2–5–4–7–6

010

2–3–4–5–6–7–0–1

2–3–0–1–6–7–4–5

011

3–4–5–6–7–0–1–2

3–2–1–0–7–6–5–4

100

4–5–6–7–0–1–2–3

4–5–6–7–0–1–2–3

101

5–6–7–0–1–2–3–4

5–4–7–6–1–0–3–2

110

6–7–0–1–2–3–4–5

6–7–4–5–2–3–0–1

111

7–0–1–2–3–4–5–6

7–6–5–4–3–2–1–0

FullPage

n

Cn, Cn+1, Cn+2 ....

Not supported

Burst Length

Starting Column Address

Order of Accesses Within a Burst

A2

A1

A0

Type=Sequential

Type=Interleaved