HY57V643220D(L/S)T(P) Series
4Banks x 512K x 32bits Synchronous DRAM
BASIC FUNCTIONAL DESCRIPTION
Mode Register
BA1
0
BA0
0
A11
0
A10
0
A9
OP Code
A8
0
A7
0
A6
A5
CAS Latency
A4
A3
BT
A2
A1
Burst Length
A0
OP Code
A9
0
1
Write Mode
Burst Read and Burst Write
Burst Read and Single Write
Burst Type
A3
0
1
Burst Type
Sequential
Interleave
CAS Latency
A6
0
0
0
0
1
1
1
1
A5
0
0
1
1
0
0
1
1
A4
0
1
0
1
0
1
0
1
CAS Latency
Reserved
1
2
3
Reserved
Reserved
Reserved
Reserved
Burst Length
A2
0
0
0
0
1
1
1
1
A1
0
0
1
1
0
0
1
1
A0
0
1
0
1
0
1
0
1
Burst Length
A3 = 0
1
2
4
8
Reserved
Reserved
Reserved
Full Page
A3=1
1
2
4
8
Reserved
Reserved
Reserved
Reserved
Rev. 0.3 / Sep. 2004
6