Memoria 1gb Pc Markvision Value Ddr2-800/pc2-6400 240 Pins

1GB DDR2 SDRAM Unbuffered DIMM

128Mx64bits DDR2 SDRAM 240pin DIMM based on 128Mx8

Performance range

Part No. Max Freq. Interface

MVQVE1A08 400MHz(CL=5) SSTL_1.8

Address Table

Density Organization Ranks SDRAMS # of

DRAMS

Method

1GB 128Mx64 1 128Mbx8 8 14(A0~A13)/ 3(BA0~BA2)/ 10(A0~A9) 8k/ 64ms

Pin Configuration

General Description

The MVQVE1A08 is 128Mx64 bits DDR2

SDRAM Module, The module is composed of eight

128Mx8 bits CMOS DDR2 SDRAMs in FBGA

package and one 2Kbit EEPROM in 8pin TSSOP

(TSOP) package on a 240pin glass?epoxy printed

circuit board.

The MVQVE1A08 is a Dual In-line Memory

Module and intended for mounting onto 240-pins edge

connector sockets. Synchronous design allows

precise cycle control with the use of system clock.

Data I/O transactions are possible on both edges of

DQS. Range of operating frequencies, programmable

latencies and burst lengths allow the same device to

be useful for a variety of high bandwidth, high

performance memory system applications.

Features
��Power supply: VDD & VDDQ = 1.8V ± 0.1V

1.8V (SSTL_18 compatible) I/O

MRS Cycle with address key programs

-CAS Latency (3, 4, 5)

-Burst Length (4,8)

��Programmable Additive Latency:0,1,2,3,4

Bi-directional, differential data strobe (DQS and /DQS)

Differential clock input (CK, /CK) operation

��DLL aligns DQ and DQS transition with CK transition

Double-data-rate architecture.

Auto & Self refresh

��Average Refresh period 7.8_s

Off-Chip Driver(OCD) Impedance Adjustment

On Die Termination

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