GM72V66841CT-7J データシートの表示（PDF） - LG

部品番号

コンポーネント説明

メーカー

GM72V66841CT-7J

2,097,152 WORD x 8 BIT x 4 BANK SYNCHRONOUS DYNAMIC RAM

LG 

LG Semicon

GM72V66841CT/CLT

From [READ]

To [DESL], [NOP]: These commands

continue read operations until the burst

operation is completed.

To [BST]: This command stops a full-page

burst.

To [READ], [READ A]: Data output by the

previous read command continues to be

output. After CAS latency, the data output

resulting from the next command will start.

To [WRIT], [WRIT A]: These commands

stop a burst read, and start a write cycle.

To [ACTV]: This command makes other

banks bank-active. (However, an interval of

tRRD is required.) Attempting to make the

currently active bank active results in an

illegal command.

To [PRE], [PALL]: These commands stop a

burst read, and the synchronous DRAM

enters Precharge mode.

From [READ with AUTO-Precharge]

To [DESL], [NOP]: These commands

continue read operations until the burst

operation is completed, and the synchronous

DRAM then enters Precharge mode.

To [ACTV]: This command makes other

banks bank-active. (However, an interval of

tRRD is required.) Attempting to make the

currently active bank active results in an

illegal command.

From [WRITE]

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

tRRD is required.) Attempting to make the

currently active bank active results in an

illegal command.

To [PRE], [PALL]: These commands stop

burst write and the synchronous DRAM

then enters Precharge mode.

From [WRITE with AUTO-Precharge]

To [DESL], [NOP]: These commands

continue write operations until the burst

operation is completed, and the synchronous

DRAM then enters Precharge mode.

To [ACTV]: This command makes the other

bank active. (However, an interval of tRC is

required.) Attempting to make the currently

active bank active results in an illegal

command.

From [REFRESH]

To [DESL], [NOP], [BST]: After an auto-

refresh cycle (after tRC), the synchronous

DRAM automatically enters the Idle state.

13

Share Link: