W986416DH-6I 데이터 시트보기 (PDF) - Winbond

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W986416DH-6I

1M x 4 BANKS x 16 BITS SDRAM

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W986416DH

Operating Timing Example, continued

Page Mode Read (Burst Length = 4, CAS Latency = 3)

CLK

CS

RAS

(CLK = 100 MHz)

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23

tCCD

tRAS

tCCD

tCCD

tRAS

CAS

WE

BS0

BS1

tRCD

A10 RAa

tRCD

RBb

A0-A9 RAa

DQM

CAI RBb

CBx

CAy

CAm

CBz

CKE

DQ

tAC

tAC

tAC

tAC

tAC

a0 a1 a2 a3 bx0 bx1 Ay0 Ay1 Ay2 am0 am1 am2 bz0 bz1 bz2 bz3

tRRD

Bank #0 Active

Bank #1

Bank #2

Idle

Bank #3

Read

Active

Read

Read

Read

Read

Precharge

AP*

* AP is the internal precharge start timing

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