- 您現(xiàn)在的位置：買賣IC網 > PDF目錄383555 > MC-458CB645 (NEC Corp.) 8 M-Word By 64-Bit Synchronous Dynamic RAM Module(同步動態(tài)RAM 模塊) PDF資料下載
參數(shù)資料
| 型號： | MC-458CB645 |
| 廠商： | NEC Corp. |
| 英文描述： | 8 M-Word By 64-Bit Synchronous Dynamic RAM Module(同步動態(tài)RAM 模塊) |
| 中文描述： | 八米，由64個字位同步動態(tài)隨機存儲器模塊（同步動態(tài)內存模塊） |
| 文件頁數(shù)： | 1/16頁 |
| 文件大小： | 135K |
| 代理商： | MC-458CB645 |
The information in this document is subject to change without notice.
1998
MOS INTEGRATED CIRCUIT
MC-458CB645
8M-WORD BY 64-BIT SYNCHRONOUS DYNAMIC RAM MODULE
UNBUFFERED TYPE
DATA SHEET
The mark
shows major revised points.
Document No. M13297EJ2V0DS00 (2nd edition)
Date Published May 1998 NS CP (K)
Printed in Japan
Description
The MC-458CB645 is an 8,388,608 words by 64 bits synchronous dynamic RAM module on which 8 pieces of 64M
SDRAM :
μ
PD4564841 (Revision E) 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 clock access time
Family
/CAS latency
Clock frequency
Clock access time
Power consumption (MAX.)
(MAX.)
(MAX.)
Active
Standby
MC-458CB645-A10B
CL = 3
100 MHz
7 ns
3,312 mW
14.4 mW
CL = 2
67 MHz
8 ns
3,024 mW
(CMOS level input)
Fully Synchronous Dynamic RAM, with all signals referenced to a positive clock edge
Pulsed interface
Possible to assert random column address in every cycle
Quad internal banks controlled by BA0 and BA1 (Bank Select)
Programmable burst-length : 1, 2, 4, 8 and full page
Programmable wrap sequence (Sequential / Interleave)
Programmable /CAS latency (2, 3)
Automatic precharge and controlled precharge
CBR (Auto) refresh and self refresh
All DQs have 10
±
10
% of series resistor
Single 3.3
V
±
0.3
V power supply
LVTTL compatible
4,096 refresh cycles / 64
ms
Burst termination by Burst Stop command and Precharge command
168-pin dual in-line memory module (Pin pitch = 1.27
mm)
Unbuffered type
Serial PD
相關PDF資料 |
PDF描述 |
|---|---|
| MC-458CB646 | 8M-Word By 64-BIT Dynamic RAM Module(8M×64位動態(tài)RAM模塊) |
| MC-458CB647 | 8M-WORD BY 64-BIT SYNCHRONOUS DYNAMIC RAM MODULE UNBUFFERED TYPE |
| MC-458CA727 | 8M-WORD BY 72-BIT SYNCHRONOUS DYNAMIC RAM MODULE UNBUFFERED TYPE |
| MC-458CA726EFB-A10 | 8M-WORD BY 72-BIT SYNCHRONOUS DYNAMIC RAM MODULE UNBUFFERED TYPE |
| MC-458CB646EFB-A10 | 8M-WORD BY 64-BIT SYNCHRONOUS DYNAMIC RAM MODULE UNBUFFERED TYPE |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MC-458CB646 | 制造商:NEC 制造商全稱:NEC 功能描述:8M-WORD BY 64-BIT SYNCHRONOUS DYNAMIC RAM MODULE UNBUFFERED TYPE |
| MC-458CB646EFB-A10 | 制造商:NEC 制造商全稱:NEC 功能描述:8M-WORD BY 64-BIT SYNCHRONOUS DYNAMIC RAM MODULE UNBUFFERED TYPE |
| MC-458CB646EFB-A80 | 制造商:NEC 制造商全稱:NEC 功能描述:8M-WORD BY 64-BIT SYNCHRONOUS DYNAMIC RAM MODULE UNBUFFERED TYPE |
| MC-458CB646PFB-A10 | 制造商:NEC 制造商全稱:NEC 功能描述:8M-WORD BY 64-BIT SYNCHRONOUS DYNAMIC RAM MODULE UNBUFFERED TYPE |
| MC-458CB646PFB-A80 | 制造商:NEC 制造商全稱:NEC 功能描述:8M-WORD BY 64-BIT SYNCHRONOUS DYNAMIC RAM MODULE UNBUFFERED TYPE |
發(fā)布緊急采購，3分鐘左右您將得到回復。