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參數資料
型號: Q67100-Q727
廠商: SIEMENS AG
英文描述: 256k x 16-Bit Dynamic RAM
中文描述: 256k x 16位動態隨機存儲器
文件頁數: 9/53頁
文件大?。?/td> 418K
代理商: Q67100-Q727
HYB 39S64400/800/160BT(L)
64-MBit Synchronous DRAM
Data Book
9
12.99
Operation Definition
All of SDRAM operations are defined by states of control signals CS, RAS, CAS, WE, and DQM at
the positive edge of the clock. The following list shows the truth table for the operation commands.
Notes
1.
V = Valid, x = Don’t Care, L = Low Level, H = High Level
2. CKEn signal is input level when commands are provided, CKEn-1 signal is input level one clock
before the commands are provided.
3. This is the state of the banks designated by BA0, BA1 signals.
4. Device state is Full Page Burst operation
5. Power Down Mode can not entry in the burst cycle. When this command assert in the burst mode
cycle device is clock suspend mode.
Operation
Device
State
Idle
3
Active
3
Active
3
CKE
n-1
CKE
n
CS
RAS
CAS
WE
DQM A0-9,
A11
A10
BA0
BA1
Row Activate (ACT)
H
X
L
L
H
H
X
V
V
V
Read (READ)
H
X
L
H
L
H
X
V
L
V
Read w/ Autoprecharge
(READA)
H
X
L
H
L
H
X
V
H
V
Write (WRITE)
Active
3
Active
3
H
X
L
H
L
L
X
V
L
V
Write w/ Autoprecharge
(WRITEA)
H
X
L
H
L
L
X
V
H
V
Row Precharge (PRE)
Any
H
X
L
L
H
L
X
X
L
V
Precharge All (PREA)
Any
H
X
L
L
H
L
X
X
H
X
Mode Register Set (MRS)
Idle
H
X
L
L
L
L
X
V
V
V
No Operation (NOP)
Any
H
X
L
H
H
H
X
X
X
X
Device Deselect (INHBT)
Any
H
X
H
X
X
X
X
X
X
X
Auto Refresh (REFA)
Idle
H
H
L
L
L
H
X
X
X
X
Self Refresh Entry (REFS-EN) Idle
H
L
L
L
L
H
X
X
X
X
Self Refresh Exit (REFS-EX)
Idle
(Self
Refr.)
L
H
H
X
X
X
X
X
X
X
L
H
H
X
Power Down Entry (PDN-EN) Idle
Active
5
H
L
H
X
X
X
X
X
X
X
L
H
H
X
Power Down Exit (PDN-EX)
Any
(Power
Down)
L
H
H
X
X
X
X
X
X
X
L
H
H
L
Data Write/Output Enable
Active
H
X
X
X
X
X
L
X
X
X
Data Write/Output Disable
Active
H
X
X
X
X
X
H
X
X
X
相關PDF資料
PDF描述
Q67100-Q741 1M x 36-Bit Dynamic RAM Module (2M x 18-Bit Dynamic RAM Module)
Q67100-Q749 1M x 4-Bit Dynamic RAM Low Power 1M x 4-Bit Dynamic RAM
Q67100-H3500 16 Kbit 2048 x 8 bit Serial CMOS EEPROMs, I2C Synchronous 2-Wire Bus
Q67100-H3501 16 Kbit 2048 x 8 bit Serial CMOS EEPROMs, I2C Synchronous 2-Wire Bus
Q67100-H3502 16 Kbit 2048 x 8 bit Serial CMOS EEPROMs, I2C Synchronous 2-Wire Bus, Page Protection Mode
相關代理商/技術參數
參數描述
Q67100-Q741 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:1M x 36-Bit Dynamic RAM Module (2M x 18-Bit Dynamic RAM Module)
Q67100-Q749 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:1M x 4-Bit Dynamic RAM Low Power 1M x 4-Bit Dynamic RAM
Q67100-Q750 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:1M x 4-Bit Dynamic RAM Low Power 1M x 4-Bit Dynamic RAM
Q67100-Q751 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:1M x 4-Bit Dynamic RAM Low Power 1M x 4-Bit Dynamic RAM
Q67100-Q756 制造商:INFINEON 制造商全稱:Infineon Technologies AG 功能描述:1M x 4-BIT DYNAMIC RAM LOW POWER 1M x 4-BIT DYNAMIC RAM
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