eds1232aase Elpida Memory, Inc., eds1232aase Datasheet - Page 47

• Manufacturer Part Number: eds1232aase
• Description: 128m Bits Sdram
• Manufacturer: Elpida Memory, Inc.

Read/Burst Write Cycle
Auto Refresh Cycle
Data Sheet E0350E31 (Ver. 3.1)
DQ (output)
DQ (output)
DQ (input)
DQ (input)
DQ (output)
DQ (input)
Address
Address
Address
/RAS
/CAS
DQM
/RAS
/CAS
DQM
CKE
CKE
/RAS
/CAS
DQM
CLK
/WE
/WE
CKE
/CS
/CS
CLK
/WE
/CS
BS
BS
BS
VIH
VIH
Precharge
If needed
A10=1
Bank 0
Active
Bank 0
Active
0
R:a
R:a
0
1
1
t
RP
2
Auto Refresh
2
3
Bank 0
Read
Bank 0
Read
C:a
C:a
3
4
4
5
Bank 3
Active
Bank 3
Active
R:b
R:b
5
6
t
a
a
RC
6
7
a+1 a+2 a+3
a+1
7
8
suspend
Auto Refresh
Clock
47
8
9
a+3
High-Z
9
10
10
11
Bank 0
Write
t
C:a
a
RC
11
12
Bank 0
Write
a+1 a+2 a+3
C:a'
a
12
13
a+1 a+2 a+3
13
14
Active
Bank 0
15
R:a
14
16
15
Read
Bank 0
17
C:a
EDS1232AASE
16
Bank 0
Precharge
Read/Burst write
/RAS-/CAS delay = 3
/CAS latency = 3
Burst length = 4
Bank 0
Precharge
18
Refresh cycle and
Read cycle
/RAS-/CAS delay = 2
/CAS latency = 2
Burst length = 4
17
= VIH or VIL
= VIH or VIL
19
a
18
Bank 3
Precharge
a+1
20
19
20