參數(shù)資料
型號(hào)： μPD45128441
廠商： NEC Corp.
英文描述： 128M-bit Synchronous DRAM(128M 同步DRAM)
中文描述： 128兆位同步DRAM（128M的同步DRAM）的
文件頁數(shù)： 15/84頁
文件大?。?/td> 693K
代理商： ΜPD45128441
Preliminary Data Sheet
15
μ
PD45128441, 45128841, 45128163
4. Truth Table
4.1 Command Truth Table
Function
Symbol
CKE
/CS
/RAS
/CAS
/WE
A12,
A10
A11,
n – 1
n
A13
A9 - A0
Device deselect
DESL
H
×
H
×
×
×
×
×
×
No operation
NOP
H
×
L
H
H
H
×
×
×
Burst stop
BST
H
×
L
H
H
L
×
×
×
Read
READ
H
×
L
H
L
H
V
L
V
Read with auto precharge
READA
H
×
L
H
L
H
V
H
V
Write
WRIT
H
×
L
H
L
L
V
L
V
Write with auto precharge
WRITA
H
×
L
H
L
L
V
H
V
Bank activate
ACT
H
×
L
L
H
H
V
V
V
Precharge select bank
PRE
H
×
L
L
H
L
V
L
×
Precharge all banks
PALL
H
×
L
L
H
L
×
H
×
Mode register set
MRS
H
×
L
L
L
L
L
L
V
Remark
H = High level, L = Low level,
×
= High or Low level (Don't care), V = Valid data input
4.2 DQM Truth Table
Function
Symbol
CKE
DQM
n – 1
n
U
L
Data write / output enable
ENB
H
×
L
Data mask / output disable
MASK
H
×
H
Upper byte write enable / output enable
ENBU
H
×
L
×
Lower byte write enable / output enable
ENBL
H
×
×
L
Upper byte write inhibit / output disable
MASKU
H
×
H
×
Lower byte write inhibit / output disable
MASKL
H
×
×
H
Remark
H = High level, L = Low level,
×
= High or Low level (Don't care)
4.3 CKE Truth Table
Current state
Function
Symbol
CKE
/CS
/RAS
/CAS
/WE
Address
n – 1
n
Activating
Clock suspend mode entry
H
L
×
×
×
×
×
Any
Clock suspend mode
L
L
×
×
×
×
×
Clock suspend
Clock suspend mode exit
L
H
×
×
×
×
×
Idle
CBR refresh command
REF
H
H
L
L
L
H
×
Idle
Self refresh entry
SELF
H
L
L
L
L
H
×
Self refresh
Self refresh exit
L
H
L
H
H
H
×
L
H
H
×
×
×
×
Idle
Power down entry
H
L
×
×
×
×
×
Power down
Power down exit
L
H
×
×
×
×
×
Remark
H = High level, L = Low level,
×
= High or Low level (Don't care)
相關(guān)PDF資料
PDF描述
μPD4516161A 16M-bit Synchronous DRAM(16M 同步動(dòng)態(tài)RAM)
μPD4516421A 16M-bit Synchronous DRAM(16M 同步動(dòng)態(tài)RAM)
μPD4516821A 16M-bit Synchronous DRAM(16M 同步動(dòng)態(tài)RAM)
μPD45256163 256M-Bit Synchronous DRAM(256M 同步 動(dòng)態(tài)RAM)
μPD45256441 256M-Bit Synchronous DRAM(256M 同步 動(dòng)態(tài)RAM)
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PD45128441G5 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:128M-bit Synchronous DRAM 4-bank, LVTTL WTR (Wide Temperature Range)
PD45128441G5-A10I-9JF 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:128M-bit Synchronous DRAM 4-bank, LVTTL WTR (Wide Temperature Range)
PD45128441G5-A10LI-9JF 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:128M-bit Synchronous DRAM 4-bank, LVTTL WTR (Wide Temperature Range)
PD45128441G5-A10LT-9JF 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:128M-bit Synchronous DRAM 4-bank, LVTTL WTR (Wide Temperature Range)
PD45128441G5-A10T-9JF 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:128M-bit Synchronous DRAM 4-bank, LVTTL WTR (Wide Temperature Range)
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*