W9812G2GH Datasheet, PDF(38/42 Page) Winbond – a high-speed synchronous dynamic random access memory (SDRAM), organized as 1,048,576 words × 4 banks × 32 bits

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W9812G2GH Datasheet, PDF (38/42 Pages) Winbond – a high-speed synchronous dynamic random access memory (SDRAM), organized as 1,048,576 words × 4 banks × 32 bits

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W9812G2GH

11.19 Timing Chart of Burst Stop Cycle (Burst Stop Command)

10 11

(1) Read cycle

( a ) CAS latency =2

Command Read

BST

( b )CAS latency = 3

Command

Read

Q0 Q1 Q2 Q3 Q4

BST

Q0 Q1 Q2 Q3 Q4

(2) Write cycle

Command Write

BST

DQ Q0 Q1 Q2 Q3 Q4

Note: BST represents the Burst stop command

11.20 Timing Chart of Burst Stop Cycle (Precharge Command)

(1) Read cycle

(a) CAS latency =2

Command

(b) CAS latency =3

Command

Read

PRCG

10 11

(2) Write cycle

(a) CAS latency =2 Write

Command

PRCG

tWR

DQM

(b) CAS latency =3 Write

Command

PRCG

tWR

DQM

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Publication Release Date: Aug. 13,2007

Revision A07

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