V53C1256162VBLS8PC datasheet(22/46 Pages) ETC1

Part #	V53C1256162VBLS8PC

Description	256Mbit MOBILE SDRAM 2.5 VOLT FBGA PACKAGE 16M X 16

PDF	46 Pages

Scroll/Zoom	100%

Manufacturer	ETC1 [List of Unclassifed Manufacturers]

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V55C2256164VB Rev. 1.0 April 2005

ProMOS TECHNOLOGIES

V55C2256164VB

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

V53C1256162VBLS8PC Datasheet(PDF) 22 Page - List of Unclassifed Manufacturers

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