is42s16128 Integrated Silicon Solution, Inc., is42s16128 Datasheet - Page 21

• Manufacturer Part Number: is42s16128
• Description: 128k Words Bits Banks Sdram
• Manufacturer: Integrated Silicon Solution, Inc.

Burst Length and Column Address Sequence
Notes:
1. The burst length in full page mode is 256.
Bank Select and Precharge Address Allocation
Integrated Silicon Solution, Inc. — 1-800-379-4774
Rev. A
03/13/00
IS42S16128
Burst Length
Full Page
Column
(256)
Row
2
4
8
A2
X0
X1
X2
X3
X4
X5
X6
X7
X8
X9
Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
Y8
Y9
X
X
X
X
X
X
0
0
0
0
1
1
1
1
n
Column Address
A1
X
X
0
0
1
1
0
0
1
1
0
0
1
1
n
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
0
1
0
1
0
1
0
1
A0
0
1
0
1
0
1
0
1
0
1
0
1
0
1
n
Row Address
Row Address
Row Address
Row Address
Row Address
Row Address
Row Address
Row Address
Precharge of the Selected Bank (Precharge Command)
Precharge of Both Banks (Precharge Command)
Bank 0 Selected (Precharge and Active Command)
Bank 1 Selected (Precharge and Active Command)
Column Address
Column Address
Column Address
Column Address
Column Address
Column Address
Column Address
Column Address
Auto-Precharge Not Performed
Auto-Precharge Performed
Bank 0 Selected (Read and Write Commands)
Bank 1 Selected (Read and Write Commands)
...Cn-1(Cn+255),
Cn, Cn+1, Cn+2
0-1-2-3-4-5-6-7
1-2-3-4-5-6-7-0
2-3-4-5-6-7-0-1
3-4-5-6-7-0-1-2
4-5-6-7-0-1-2-3
5-6-7-0-1-2-3-4
6-7-0-1-2-3-4-5
7-0-1-2-3-4-5-6
Cn+3, Cn+4.....
Cn(Cn+256).....
Sequential
0-1-2-3
1-2-3-0
2-3-0-1
3-0-1-2
0-1
1-0
Address Sequence
0-1-2-3-4-5-6-7
1-0-3-2-5-4-7-6
2-3-0-1-6-7-4-5
3-2-1-0-7-6-5-4
4-5-6-7-0-1-2-3
5-4-7-6-1-0-3-2
6-7-4-5-2-3-0-1
7-6-5-4-3-2-1-0
Interleaved
0-1-2-3
1-0-3-2
2-3-0-1
3-2-1-0
None
0-1
1-0
(Active Command)
Row Address
ISSI
21
®