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參數(shù)資料
| 型號(hào)： | HM5264805F-75 |
| 廠商： | Hitachi,Ltd. |
| 元件分類： | 圓形連接器 |
| 英文描述： | Circular Connector; MIL SPEC:MIL-C-26482, Series I, Solder; Body Material:Aluminum; Series:PT06; No. of Contacts:36; Connector Shell Size:22; Connecting Termination:Solder; Circular Shell Style:Straight Plug; Body Style:Straight |
| 中文描述： | 6400 LVTTL接口SDRAM的133 MHz/100 MHz的 |
| 文件頁數(shù)： | 12/67頁 |
| 文件大?。?/td> | 870K |
| 代理商： | HM5264805F-75 |
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HM5264165F/HM5264805F/HM5264405F-75/A60/B60
12
DQM Truth Table
(HM5264165F)
CKE
Command
Symbol
n - 1
n
DQMU
DQML
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
Note:
H: V
IH
. L: V
IL
.
×
: V
IH
or V
IL
.
Write: I
DID
is needed.
Read: I
DOD
is needed.
MASKL
H
×
H
DQM Truth Table
(HM5264805F/HM5264405F)
CKE
Command
Symbol
n - 1
n
DQM
Write enable/output enable
ENB
H
×
×
L
Write inhibit/output disable
Note:
H: V
IH
. L: V
IL
.
×
: V
IH
or V
IL
.
Write: I
DID
is needed.
Read: I
DOD
is needed.
MASK
H
H
The SDRAM can mask input/output data by means of DQM, DQMU/DQML.
DQMU masks the upper byte and DQML masks the lower byte. (HM5264165F)
During reading, the output buffer is set to Low-Z by setting DQM, DQMU/DQML to Low, enabling data
output. On the other hand, when DQM, DQMU/DQML is set to High, the output buffer becomes High-Z,
disabling data output.
During writing, data is written by setting DQM, DQMU/DQML to Low. When DQM, DQMU/DQML is set
to High, the previous data is held (the new data is not written). Desired data can be masked during burst read
or burst write by setting DQMU/DQML. For details, refer to the DQM, DQMU/DQML control section of the
SDRAM operating instructions.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HM5264805F-A60 | Circular Connector; MIL SPEC:MIL-C-26482, Series I, Solder; Body Material:Aluminum; Series:PT06; No. of Contacts:36; Connector Shell Size:22; Connecting Termination:Solder; Circular Shell Style:Straight Plug; Body Style:Straight |
| HM5264805F-B60 | Circular Connector; MIL SPEC:MIL-C-26482, Series I, Solder; Body Material:Aluminum; Series:PT06; Number of Contacts:36; Connector Shell Size:22; Connecting Termination:Solder; Circular Shell Style:Straight Plug; Body Style:Straight |
| HM5264165A60 | 64M LVTTL interface SDRAM 133 MHz/100 MHz |
| HM5264165B60 | 64M LVTTL interface SDRAM 133 MHz/100 MHz |
| HM5264165FTT-75 | 64M LVTTL interface SDRAM 133 MHz/100 MHz |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HM5264805F-A60 | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:64M LVTTL interface SDRAM 133 MHz/100 MHz |
| HM5264805F-B60 | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:64M LVTTL interface SDRAM 133 MHz/100 MHz |
| HM5264805FLTT-75 | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:64M LVTTL interface SDRAM 133 MHz/100 MHz |
| HM5264805FLTT-A60 | 制造商:ELPIDA 制造商全稱:Elpida Memory 功能描述:64M LVTTL interface SDRAM 133 MHz/100 MHz 1-Mword × 16-bit × 4-bank/2-Mword × 8-bit × 4-bank /4-Mword × 4-bit × 4-bank PC/133, PC/100 SDRAM |
| HM5264805FLTT-B60 | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:64M LVTTL interface SDRAM 133 MHz/100 MHz |
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