參數(shù)資料
型號: CY7C1474V25
廠商: Cypress Semiconductor Corp.
英文描述: 72-Mbit(2M x 36/4M x 18/1M x 72) Pipelined SRAM with NoBL⑩ Architecture
中文描述: 72兆位(2米x 36/4M x 18/1M × 72)的總線延遲⑩架構(gòu)流水線的SRAM
文件頁數(shù): 10/28頁
文件大小: 378K
代理商: CY7C1474V25
PRELIMINARY
CY7C1470V33
CY7C1472V33
CY7C1474V33
Document #: 38-05289 Rev. *E
Page 10 of 28
Partial Write Cycle Description
[1, 2, 3, 8]
Function (CY7C1470V33)
WE
H
L
BW
d
X
H
BW
c
X
H
BW
b
X
H
BW
a
X
H
Read
Write – No bytes written
Write Byte a – (DQ
a
and
DQP
a
)
Write Byte b – (DQ
b
and
DQP
b
)
Write Bytes b, a
Write Byte c – (DQ
c
and
DQP
c
)
Write Bytes c, a
Write Bytes c, b
Write Bytes c, b, a
Write Byte d – (DQ
d
and
DQP
d
)
Write Bytes d, a
Write Bytes d, b
Write Bytes d, b, a
Write Bytes d, c
Write Bytes d, c, a
Write Bytes d, c, b
Write All Bytes
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
H
H
H
H
H
H
H
L
L
L
L
L
L
L
L
H
H
H
L
L
LL
L
H
H
H
H
L
L
L
L
H
L
L
H
H
L
L
H
H
L
L
H
H
L
L
L
H
L
H
L
H
L
H
L
H
L
H
L
H
L
Function (CY7C1472V33)
WE
H
L
L
L
L
BW
b
x
H
H
L
L
BW
a
x
H
L
H
L
Read
Write – No Bytes Written
Write Byte a – (DQ
a
and
DQP
a
)
Write Byte b – (DQ
b
and
DQP
b
)
Write Both Bytes
Function (CY7C1474V33)
WE
H
L
L
L
BW
x
x
H
L
Read
Write – No Bytes Written
Write Byte X
(DQ
x
and
DQP
x)
Write All Bytes
All BW = L
Note:
8. Table only lists a partial listing of the Byte Write combinations. Any combination of BW
[a:d]
is valid. Appropriate Write will be done based on which Byte Write is
active.
相關(guān)PDF資料
PDF描述
CY7C1474V25-167BGC 72-Mbit(2M x 36/4M x 18/1M x 72) Pipelined SRAM with NoBL⑩ Architecture
CY7C1474V25-167BGXC 72-Mbit(2M x 36/4M x 18/1M x 72) Pipelined SRAM with NoBL⑩ Architecture
CY7C1474V25-200BGC 72-Mbit(2M x 36/4M x 18/1M x 72) Pipelined SRAM with NoBL⑩ Architecture
CY7C1474V25-200BGXC 72-Mbit(2M x 36/4M x 18/1M x 72) Pipelined SRAM with NoBL⑩ Architecture
CY7C1474V25-250BGC 72-Mbit(2M x 36/4M x 18/1M x 72) Pipelined SRAM with NoBL⑩ Architecture
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參數(shù)描述
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CY7C1474V25167BGCES 制造商:Cypress Semiconductor 功能描述:SRAM Chip Sync Octal 2.5V 72M-Bit 1M x 72-Bit 3.4ns 209-Pin FBGA
CY7C1474V25-167BGCES 制造商:Cypress Semiconductor 功能描述:SRAM SYNC OCTAL 2.5V 72MBIT 1MX72 3.4NS 209FBGA - Bulk
CY7C1474V25-167BGCT 功能描述:靜態(tài)隨機存取存儲器 1Mx72 2.5V NoBL PL 靜態(tài)隨機存取存儲器 COM RoHS:否 制造商:Cypress Semiconductor 存儲容量:16 Mbit 組織:1 M x 16 訪問時間:55 ns 電源電壓-最大:3.6 V 電源電壓-最小:2.2 V 最大工作電流:22 uA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風格:SMD/SMT 封裝 / 箱體:TSOP-48 封裝:Tray
CY7C1474V25-167BGI 功能描述:靜態(tài)隨機存取存儲器 1Mx72 2.5V NoBL PL 靜態(tài)隨機存取存儲器 IND RoHS:否 制造商:Cypress Semiconductor 存儲容量:16 Mbit 組織:1 M x 16 訪問時間:55 ns 電源電壓-最大:3.6 V 電源電壓-最小:2.2 V 最大工作電流:22 uA 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風格:SMD/SMT 封裝 / 箱體:TSOP-48 封裝:Tray