hm5264165f-75 Elpida Memory, Inc., hm5264165f-75 Datasheet - Page 63

• Manufacturer Part Number: hm5264165f-75
• Description: 64m Lvttl Interface Sdram
• Manufacturer: Elpida Memory, Inc.

Power Down Mode
Initialization Sequence
DQMU/DQML
DQMU/DQML
Address
DQ (output)
DQM,
DQ (input)
CKE
RAS
CAS
CLK
WE
DQ
CS
Address
DQM,
CKE
RAS
CAS
CLK
WE
CS
BS
Precharge command
If needed
V
V
All banks
Precharge
IH
IH
valid
0
A10=1
1
HM5264165F/HM5264805F/HM5264405F-75/A60/B60
t RP
2
Auto Refresh
t
RP
Data Sheet E0135H10
3
Power down entry
4
5
CKE Low
t
RC
6
7
8
Auto Refresh
9
High-Z
10
Power down
mode exit
t
RC
Active Bank 0
48
High-Z
R: a
49
50
Mode register
Set
Power down cycle
RAS-CAS delay = 3
CAS latency = 3
Burst length = 4
code
51
= V
52
t
RSA
IH
or V
53
Bank active
If needed
Valid
IL
54
55
63