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參數(shù)資料
| 型號(hào)： | μPD4516421A |
| 廠商： | NEC Corp. |
| 英文描述： | 16M-bit Synchronous DRAM(16M 同步動(dòng)態(tài)RAM) |
| 中文描述： | 1,600位同步DRAM（1,600同步動(dòng)態(tài)RAM）的 |
| 文件頁數(shù)： | 19/86頁 |
| 文件大小： | 904K |
| 代理商： | ΜPD4516421A |
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μ
PD4516421A, 4516821A, 4516161A for Rev. P
19
4.5 Command Truth Table for CKE
Note 1
Current state
CKE
CKE
CS
RAS
CAS
WE
Address
Action
Notes
n-1
n
Self refresh
(S.R.)
H
×
×
×
×
×
×
INVALID, CLK(n-1) would exit S.R.
L
H
H
×
×
×
×
S.R. Recovery
L
H
L
H
H
×
×
S.R. Recovery
L
H
L
H
L
×
×
ILLEGAL
L
H
L
L
×
×
×
ILLEGAL
L
L
×
×
×
×
×
Maintain S.R.
Self refresh
recovery
H
H
H
×
×
×
×
Idle after t
RC
H
H
L
H
H
×
×
Idle after t
RC
H
H
L
H
L
×
×
ILLEGAL
H
H
L
L
×
×
×
ILLEGAL
H
L
H
×
×
×
×
ILLEGAL
H
L
L
H
H
×
×
ILLEGAL
H
L
L
H
L
×
×
ILLEGAL
H
L
L
L
×
×
×
ILLEGAL
Power down
(P.D.)
H
×
×
×
×
×
INVALID, CLK(n-1) would exit P.D.
L
H
×
×
×
×
×
EXIT P.D.
→
Idle
L
L
×
×
×
×
×
Maintain power down mode
Both banks idle
H
H
H
×
×
×
Refer to operations in Operative Command Table
H
H
L
H
×
×
Refer to operations in Operative Command Table
H
H
L
L
H
×
Refer to operations in Operative Command Table
H
H
L
L
L
H
×
Refresh
H
H
L
L
L
L
Op-Code
Refer to operations in Operative Command Table
H
L
H
×
×
×
Refer to operations in Operative Command Table
H
L
L
H
×
×
Refer to operations in Operative Command Table
H
L
L
L
H
×
Refer to operations in Operative Command Table
H
L
L
L
L
H
×
Self refresh
2
H
L
L
L
L
L
Op-Code
Refer to operations in Operative Command Table
L
×
×
×
×
×
×
Power down
2
Row active
H
×
×
×
×
×
Refer to operations in Operative Command Table
L
×
×
×
×
×
Power down
3
Any state other
than listed
above
H
H
×
×
×
×
×
Refer to operations in Operative Command Table
H
L
×
×
×
×
×
Begin clock suspend next cycle
3
L
H
×
×
×
×
×
Exit clock suspend next cycle
L
L
×
×
×
×
×
Maintain clock suspend
Notes 1.
H: High level, L: Low level, X: High or low level (Don’t care)
2.
Self refresh can be entered only from the both banks idle state. Power down can be entered from the both
banks idle state or row active state.
3.
Must be legal command as defined in Operative Command Table.
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| PD45180-4M | 制造商:MICRONETICS 制造商全稱:MICRONETICS 功能描述:FOUR -WAYMULTI - OCTAVEISOLATED POWERDIVIDERS / COMBINERS |
| PD4558C | 制造商:Panasonic Industrial Company 功能描述:IC |
| PD-45A | 功能描述:線性和開關(guān)式電源 40W 5V/3.2A 12V/2A RoHS:否 制造商:TDK-Lambda 產(chǎn)品:Switching Supplies 開放式框架/封閉式:Enclosed 輸出功率額定值:800 W 輸入電壓:85 VAC to 265 VAC 輸出端數(shù)量:1 輸出電壓（通道 1）:20 V 輸出電流（通道 1）:40 A 商用/醫(yī)用: 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風(fēng)格:Rack 長(zhǎng)度: 寬度: 高度: |
| PD-45B | 功能描述:線性和開關(guān)式電源 44.8W 5V/3.2A 24V/1.2A RoHS:否 制造商:TDK-Lambda 產(chǎn)品:Switching Supplies 開放式框架/封閉式:Enclosed 輸出功率額定值:800 W 輸入電壓:85 VAC to 265 VAC 輸出端數(shù)量:1 輸出電壓（通道 1）:20 V 輸出電流（通道 1）:40 A 商用/醫(yī)用: 輸出電壓（通道 2）: 輸出電流（通道 2）: 安裝風(fēng)格:Rack 長(zhǎng)度: 寬度: 高度: |
| PD45VN6C100 | 制造商:Banner Engineering 功能描述:SENSOR, PHOTOELECTRIC, PICODOT, CONVERGENT LASER, FOCAL POINT, 1 |
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