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參數(shù)資料
| 型號(hào)： | MC-4564DC726 |
| 廠商： | NEC Corp. |
| 英文描述： | 64M-Word By 72-BIT Dynamic RAM Module(動(dòng)態(tài)RAM模塊) |
| 中文描述： | 6400 - Word的72位動(dòng)態(tài)內(nèi)存模塊（動(dòng)態(tài)內(nèi)存模塊） |
| 文件頁數(shù)： | 5/20頁 |
| 文件大?。?/td> | 170K |
| 代理商： | MC-4564DC726 |
5
MC-4564DC726
Block Diagram
(2/2)
Register 1
/CS0 - /CS1
DQMB0 - DQMB1
/RAS
/CAS
Register 2
/LE
/LE
/WE
A0 - A8
/RCS0 - /RCS1
RDQMB0 - RDQMB1
/RRAS
/RCAS
/RWE
RA0 - RA8
/RAS: D0 - D8, D18 - D26
/CAS: D0 - D8, D18 - D26
/WE: D0 - D8, D18 - D26
A0 - A8: D0 - D8, D18 - D26
/RCS0 - /RCS1
RDQMB4 - RDQMB5
/RRAS
/RCAS
/RWE
RA0 - RA8
/RAS: D9 - D17, D27 - D35
/CAS: D9 - D17, D27 - D35
/WE: D9 - D17, D27 - D35
A0 - A8: D9 - D17, D27 - D35
Register 3
/CS2 - /CS3
DQMB2 - DQMB3
CKE0
A9 - A11, BA0 - BA1
Register 4
/LE
/RCS2 - /RCS3
RDQMB2 - RDQMB3
RCKE0
RA9 - RA11, RBA0 - RBA1
CKE: D0 - D8, D18 - D26
A9 - A11, BA0 - BA1: D0 - D8, D18 - D26
DQMB4 - DQMB5
/LE
/RCS2 - /RCS3
RDQMB6 - RDQMB7
RCKE0
RA9 - RA11, RBA0 - RBA1
CKE: D9 - D17, D27 - D35
A9 - A11, BA0 - BA1: D9 - D17, D27 - D35
10 k
DQMB6 - DQMB7
REGE
Remarks 1.
The series resistor values of DQs are 10
.
2.
WP is not used yet. It is connected to ground.
3.
D0 - D35:
μ
PD45128441 (8 M words
×
4 bits
×
4 banks)
4.
REGE
≤
V
IL
: Buffer Mode
REGE
≥
V
IH
: Register Mode
5.
Register: SN74ALVC16334DGG
PLL: CDC2509APW
6.
D0
-
D8, D18
-
D26, Register 1, Register 3, and PLL 1 are assembled on main PCB.
D9
-
D17, D27
-
D35, Register 2, Register 4 and PLL 2 are assembled on sub PCB.
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| MC-4564EC726 | 64 M-WORD BY 72-BIT SYNCHRONOUS DYNAMIC RAM MODULE REGISTERED TYPE |
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| MC-4564EC726EFB-A80 | 64 M-WORD BY 72-BIT SYNCHRONOUS DYNAMIC RAM MODULE REGISTERED TYPE |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MC-4564EC726 | 制造商:NEC 制造商全稱:NEC 功能描述:64 M-WORD BY 72-BIT SYNCHRONOUS DYNAMIC RAM MODULE REGISTERED TYPE |
| MC-4564EC726EFB-A10 | 制造商:NEC 制造商全稱:NEC 功能描述:64 M-WORD BY 72-BIT SYNCHRONOUS DYNAMIC RAM MODULE REGISTERED TYPE |
| MC-4564EC726EFB-A80 | 制造商:NEC 制造商全稱:NEC 功能描述:64 M-WORD BY 72-BIT SYNCHRONOUS DYNAMIC RAM MODULE REGISTERED TYPE |
| MC-4564EC726PFB-A10 | 制造商:NEC 制造商全稱:NEC 功能描述:64 M-WORD BY 72-BIT SYNCHRONOUS DYNAMIC RAM MODULE REGISTERED TYPE |
| MC-4564EC726PFB-A80 | 制造商:NEC 制造商全稱:NEC 功能描述:64 M-WORD BY 72-BIT SYNCHRONOUS DYNAMIC RAM MODULE REGISTERED TYPE |
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