M12S16161A_07 Datasheet, PDF (9/29 Pages) Elite Semiconductor Memory Technology Inc. – 512K x 16Bit x 2Banks Synchronous DRAM

ESMT
Burst Length and Sequence
(Burst of Two)
Starting Address
(column address A0 binary)
0
1
Sequential Addressing
Sequence (decimal)
0,1
1,0
M12S16161A
Interleave Addressing
Sequence (decimal)
0,1
1,0
(Burst of Four)
Starting Address
(column address A1-A0, binary)
00
01
10
11
Sequential Addressing
Sequence (decimal)
0,1,2,3
1,2,3,0
2,3,0,1
3,0,1,2
Interleave Addressing
Sequence (decimal)
0,1,2,3
1,0,3,2
2,3,0,1
3,2,1,0
(Burst of Eight)
Starting Address
(column address A2-A0, binary)
000
001
010
0 11
100
101
11 0
111
Sequential Addressing
Sequence (decimal)
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
Interleave Addressing
Sequence (decimal)
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
Full page burst is an extension of the above tables of Sequential Addressing, with the length being 256 for 1Mx16 divice.
POWER UP SEQUENCE
1.Apply power and start clock, attempt to maintain CKE= “H”, L(U)DQM = “H” and the other pin are NOP condition at the inputs.
2.Maintain stable power, stable clock and NOP input condition for a minimum of 200us.
3.Issue precharge commands for all banks of the devices.
4.Issue 2 or more auto-refresh commands.
5.Issue mode register set command to initialize the mode register.
Cf.)Sequence of 4 & 5 is regardless of the order.
Elite Semiconductor Memory Technology Inc.
Publication Date : May. 2007
Revision : 1.1
9/29