EDS2504ACTA/08ACTA/16ACTA, EDS2504APTA/08APTA/16APTA
Write Cycle
tCK
tCH tCL
CLK
CKE
tRC
VIH
tRP
tRAS
tRCD
tSI tHI
tSI tHI
tSI tHI
tSI tHI
tSI tHI
/CS
tSI tHI
tSI tHI
tSI tHI
tSI tHI
tSI tHI
tSI tHI
/RAS
tSI tHI
/CAS
/WE
tSI tHI
tSI tHI
tSI tHI
tSI tHI
tSI tHI
tSI tHI
tSI tHI
tSI tHI
tSI tHI
tSI tHI
BS
tSI tHI
tSI tHI
tSI tHI
A10
tSI tHI
tSI tHI
Address
DQM
tSI
tHI
tSI tHI tSI tHI tSI tHI tSI tHI
DQ (input)
tDPL
DQ (output)
Bank 0
Precharge
Bank 0
Write
CL = 2
BL = 4
Bank 0
Active
Bank 0 access
= VIH or VIL
Mode Register Set Cycle
0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
CLK
VIL
CKE
/CS
/RAS
/CAS
/WE
BS
code
C: b’
Address
DQM
valid
C: b
R: b
b
b+3
b’ b’+1 b’+2 b’+3
DQ (output)
DQ (input)
High-Z
lMRD
lRP
lRCD
Output mask
l
RCD = 3
Precharge
If needed
Mode
register
Set
Bank 3
Active
Bank 3
Read
/CAS latency = 3
Burst length = 4
= VIH or VIL
Data Sheet E0110E30 (Ver. 3.0)
43
ELPIDA [ ELPIDA MEMORY ]
