V58C265804S datasheet(18/44 Pages) MOSEL

Part #	V58C265804S

Description	HIGH PERFORMANCE 2.5 VOLT 8M X 8 DDR SDRAM 4 BANKS X 2Mbit X 8

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Manufacturer	MOSEL [Mosel Vitelic, Corp]

Direct Link	http://www.moselvitelic.com

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18

V58C265804S Rev. 1.3 January 2000

MOSEL VITELIC

V58C265804S

Write Interrupted by a Precharge

A Burst Write can be interrupted before completion of the burst by a Precharge command, with the only

restriction being that the interval that separates the commands be at least one clock cycle. When the previous

burst is interrupted, the remaining addresses are overridden by the new address and data will be written into

the device until the programmed burst length is satisfied.

Write Interrupted by a Precharge Timing

Write with Auto Precharge

If A10 is high when a Write command is issued, the Write with auto Precharge function is performed. Any

new command to the same bank should not be issued until the internal precharge is completed. The internal

precharge begins after keeping tWR (min.).

Write with Auto Precharge Timing

(CAS Latency = 2; Burst Length = 8)

T0

T1

T2

T3

T4

T5

T6

T7

T8

T9

T10

T11

WriteA

NOP

PreA

NOP

CK, CK

Command

DQS

T12

DM

D0 D1 D2 D3

DQ

Data is masked

by Precharge Command

Data is masked

by DM input

DQS input ignored

D4 D5

tWR

(CAS Latency = Any; Burst Length = 4)

T0

T1

T2

T3

T4

T5

T6

T7

T8

D0

D1

D2

D3

BA

WAP

NOP

CK, CK

Command

DQS

DQ

tRAS(min)

tRP(min)

BA

NOP

T9

tWR(min)

Begin Autoprecharge

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V58C265804S Datasheet(PDF) 18 Page - Mosel Vitelic, Corp

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