hm5264165f-75 Elpida Memory, Inc., hm5264165f-75 Datasheet - Page 34

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

HM5264165F/HM5264805F/HM5264405F-75/A60/B60
Write with auto precharge to Read command interval
1. Different bank: When some banks are in the active state, the second read command (another bank) is
executed. However, in case of a burst write, data will continue to be written until one clock before the read
command is executed. The internal auto-precharge of one bank starts at the next clock of the second
command.
Write with Auto Precharge to Read Command Interval (Different bank)
Same bank: The consecutive read command from write with auto precharge (the same bank) is illegal. . It is
necessary to separate the two commands with a bank active command.
34
DQMU/DQML
Command
Note: Internal auto-precharge starts at the timing indicated by "
DQM,
Dout
CLK
Din
BS
bank0
Write A
WRIT A
in A0
bank3
Read
READ
Data Sheet E0135H10
out B0
out B1
".
out B2
CAS Latency = 3
Burst Length = 4
out B3