V54C3128804VBGA datasheet(21/45 Pages) MOSEL

Part #	V54C3128804VBGA

Description	128Mbit SDRAM 3.3 VOLT, BGA PACKAGE

PDF	45 Pages

Scroll/Zoom	100%

Manufacturer	MOSEL [Mosel Vitelic, Corp]

Direct Link	http://www.moselvitelic.com

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21 / 45 page

V54C3128(16/80/40)4V(BGA) Rev. 1.2 September 2001

MOSEL VITELIC

V54C3128(16/80/40)4V(BGA)

6.2 Write Interrupted by a Read

(Burst Length = 4, CAS latency = 2, 3)

7. Burst Write with Auto-Precharge

Burst Length = 2, CAS latency = 2, 3)

COMMAND

NOP

WRITE A

READ B

NOP

tCK2, I/O’s

CAS latency = 2

DIN A0

tCK3, I/O’s

CAS latency = 3

DIN A0

CLK

DOUT B3

DOUT B0

DOUT B1

DOUT B2

DOUT B3

don’t care

DOUT B0

DOUT B1

DOUT B2

Input data must be removed from the I/O’s at least one clock

cycle before the Read dataAPpears on the outputs to avoid

data contention.

COMMAND

NOP

WRITE A

Auto-Precharge

CLK

NOP

BANK A

ACTIVE

NOP

DIN A0

DIN A1

I/O’s

CAS latency = 3

I/O’s

CAS latency = 2

Begin Autoprecharge

Bank can be reactivated after trp

tWR

tRP

DIN A0

DIN A1

tWR

tRP

NOP

V54C3128804VBGA Datasheet(PDF) 21 Page - Mosel Vitelic, Corp

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