hm5264165f-75 Elpida Memory, Inc., hm5264165f-75 Datasheet - Page 62

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

HM5264165F/HM5264805F/HM5264405F-75/A60/B60
Clock Suspend Mode
62
DQMU/DQML
DQMU/DQML
DQ (output)
DQ (output)
DQ (input)
DQ (input)
Address
Address
DQM,
DQM,
CKE
RAS
CAS
CKE
RAS
CAS
CLK
WE
WE
CS
CS
BS
BS
Bank0
Active
Bank0
Active
R:a
R:a
0
Active clock
suspend start
Active clock
suspend start
1
2
3
Active clock
supend end
Active clock
suspend end
4
t
CES
Data Sheet E0135H10
5
Bank0
Write
C:a
Bank0
Read
C:a R:b
a
6
Bank3
Active
a+1 a+2
7
Bank3
Active
a
R:b
t
Write suspend
CEH
8
a+1 a+2
start
Read suspend
9
High-Z
start
10
Write suspend
11
High-Z
Read suspend
t
CES
a+3
end
12
Bank3
Write
end
C:b
b
13
Bank3
Read
Bank0
Precharge
a+3
b+1 b+2 b+3
C:b
14
Bank0
Precharge
15
b
16
b+1 b+2
17
Earliest Bank3
Precharge
Earliest Bank3
Precharge
18
b+3
19
20
Write cycle
RAS-CAS delay = 2
CAS latency = 2
Burst length = 4
Read cycle
RAS-CAS delay = 2
CAS latency = 2
Burst length = 4
= V
= V
IH
IH
or V
or V
IL
IL