W986408CH 查看數據表（PDF） - Winbond

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W986408CH

2M x 8 bit x 4 Banks SDRAM

Winbond 

Mode Register Set Cycle

CLK

CS

tCMS tCMH

RAS

CAS

WE

A0-A10

BS

tCMS tCMH

tCMS tCMH

tCMS tCMH

tAS

tAH

Register

set data

A0

A1 Burst Length

A2

A3 Addressing Mode

A4

A5 CAS Latency

A6

A07 "0" (Test Mode)

A8 "0" Reserved

A09

WriteAM0 ode

A10 "0"

AA101 "0"

BS0 "0"

ResAe0rved

BAS01 "0"

4

Revision 1.0

W986408CH

2M x 8 bit x 4 Banks SDRAM

tRSC

A0

A2 A10 A0

0 A00 0

0 A00 1

0 A10 0

0 A10 1

1 A00 0

1 A00 1

1 A10 0

1 A10 1

A03

A00

A10

A6 A50 A4

0 A00 0

0 A00 1

0 A10 0

0 A10 1

1 A00 0

A09

A00

A10

- 18 -

next

command

BurstAL0ength

SequAe0ntial

InteArle0ave

1

A10

A20

A20

A40

A40

A80

A80

ResAe0rved

ResAe0rved

FullAP0age

AddressAin0g Mode

SequAe0ntial

InteArle0ave

CAS LAa0tency

ResAe0rved

ResAe0rved

2

A30

4

Single Write Mode

Burst read aAnd0 Burst write

Burst read anAd0single write

Publication Release Date: March, 1999

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