MC-45V8AB641KFA-A75中文資料瑞薩數(shù)據(jù)手冊(cè)PDF規(guī)格書

Description

The MC-45V8AB641 is a 8,388,608 words by 64 bits VirtualChannel synchronous dynamic RAM module on which 4 pieces of 128M VirtualChannel SDRAM : μPD45125161 are assembled.

This module provides high density and large quantities of memory in a small space without utilizing the surface mounting technology on the printed circuit board.

Decoupling capacitors are mounted on power supply line for noise reduction.

Features

? 8,388,608 words by 64 bits organization

? Clock frequency and access time from CLK

? Fully Standard Synchronous Dynamic RAM, with all signals referenced to a positive clock edge

? Dual internal banks controlled by BA0 (Bank Select)

? Programmable wrap sequence (sequential / interleave)

? Programmable burst length (1, 2, 4, 8 and 16)

? Read latency (2)

? Prefetch read latency (4)

? Auto precharge and without auto precharge

? Auto refresh and self refresh

? Single 3.3 V ± 0.3 V power supply

? Interface: LVTTL

? Refresh cycle: 4K cycles/64 ms

? 168-pin dual in-line memory module (Pin pitch = 1.27 mm)

? Unbuffered type

? Serial PD