hm5264165f-75 Elpida Memory, Inc., hm5264165f-75 Datasheet - Page 18
hm5264165f-75
Manufacturer Part Number
hm5264165f-75
Description
64m Lvttl Interface Sdram
Manufacturer
Elpida Memory, Inc.
Datasheet
1.HM5264165F-75.pdf
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HM5264165F/HM5264805F/HM5264405F-75/A60/B60
From READ with AUTO-PRECHARGE state, command operation
To [DESL], [NOP]: These commands continue read operations until the burst operation is completed, and
the SDRAM then enters precharge mode.
To [ACTV]: This command makes other banks bank active. (However, an interval of t
Attempting to make the currently active bank active results in an illegal command.
From WRITE state, command operation
To [DESL], [NOP]: These commands continue write operations until the burst operation is completed.
To [BST]: This command stops a full-page burst.
To [READ], [READ A]: These commands stop a burst and start a read cycle.
To [WRIT], [WRIT A]: These commands stop a burst and start the next write cycle.
To [ACTV]: This command makes the other bank active. (However, an interval of t
Attempting to make the currently active bank active results in an illegal command.
To [PRE], [PALL]: These commands stop burst write and the SDRAM then enters precharge mode.
From WRITE with AUTO-PRECHARGE state, command operation
To [DESL], [NOP]: These commands continue write operations until the burst is completed, and the
synchronous DRAM enters precharge mode.
To [ACTV]: This command makes the other bank active. (However, an interval of t
Attempting to make the currently active bank active results in an illegal command.
From REFRESH state, command operation
To [DESL], [NOP], [BST]: After an auto-refresh cycle (after t
IDLE state.
18
Data Sheet E0135H10
RC
), the SDRAM automatically enters the
RRD
RRD
RRD
is required.)
is required.)
is required.)
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