国产精品成人VA在线观看-国产乱妇乱子视频在播放-国产日韩精品一区二区三区在线-国模精品一区二区三区

參數資料
型號: W981216BH
廠商: WINBOND ELECTRONICS CORP
英文描述: 2M x 4 BANKS x 16 BIT SDRAM
中文描述: 200萬× 4銀行× 16位SDRAM
文件頁數: 9/44頁
文件大小: 2173K
代理商: W981216BH
W981216AH
2M x 16 bit x 4 Banks SDRAM
Revision 1.0 Publication Release Date: March, 1999
- 9 -
Operation Mode
Fully synchronous operations are performed to latch the commands at the positive edges of CLK. Table 1 shows the truth
table for the operation commands.
Table 1 Truth Table ( note (1) , (2) )
command
Bank Active
Device state
CKEn-1
H
H
H
H
H
H
H
H
H
H
H
H
H
L
L
H
H
H
L
L
L
H
H
CKEn
x
x
x
x
x
x
x
x
x
x
x
H
L
H
H
L
L
L
H
H
H
x
x
DQM
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
L
H
BS0,1
v
v
x
v
v
v
v
v
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
A10
v
L
H
L
H
L
H
v
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
A11,
A9-0
v
x
x
v
v
v
v
v
x
x
x
x
x
x
x
x
x
x
x
x
x
x
x
CS
L
L
L
L
L
L
L
L
L
L
H
L
L
H
L
x
H
L
x
H
L
x
x
RA
L
L
L
H
H
H
H
L
H
H
x
L
L
x
H
x
x
H
x
x
H
x
x
CAS
H
H
H
L
L
L
L
L
H
H
x
L
L
x
H
x
x
H
x
x
H
x
x
WE
H
L
L
L
L
H
H
L
H
L
x
H
H
x
x
x
x
x
x
x
x
x
x
Idle
Bank Precharge
Any
Precharge All
Any
Write
Active (3)
Write with Autoprecharge
Active (3)
Read
Active (3)
Read with Autoprecharge
Active (3)
Mode Register Set
Idle
No - Operation
Any
Burst Stop
Active (4)
Device Deselect
Any
Auto - Refresh
Idle
Self - Refresh Entry
Idle
Self Refresh Exit
idle
(S.R.)
Clock suspend Mode Entry
Active
Power Down Mode Entry
Idle
Active (5)
Clock Suspend Mode Exit
Active
Power Down Mode Exit
Any
(power down)
Data write/Output Enable
Active
Data Write/Output Disable
Active
Notes: (1) v= valid x = Don't care L= Low Level H= High Level
(2) CKEn signal is input level when commands are provided.
(3) These are state of bank designated by BS0, BS1 signals.
(4) Device state is full page burst operation.
(5) Power Down Mode can not be entered in the burst cycle.
When this command asserts in the burst cycle, device state is clock suspend mode.
相關PDF資料
PDF描述
W981216AH-75 x16 SDRAM
W981216AH-8H x16 SDRAM
W981616BH 512K ⅴ 2 BANKS ⅴ 16 BITS SDRAM
W981616AH 512K x 2 BANKS x 16 BIT SDRAM
W981616AH-6 x16 SDRAM
相關代理商/技術參數
參數描述
W981216BH-75 制造商:Winbond Electronics Corp 功能描述:SDRAM, 8M x 16, 54 Pin, Plastic, TSOP
W9812G2GB 制造商:WINBOND 制造商全稱:Winbond 功能描述:1M 】 4 BANKS 】 32BITS SDRAM
W9812G2GB-6 制造商:WINBOND 制造商全稱:Winbond 功能描述:1M 】 4 BANKS 】 32BITS SDRAM
W9812G2GB-6I 制造商:WINBOND 制造商全稱:Winbond 功能描述:1M 】 4 BANKS 】 32BITS SDRAM
W9812G2GB-75 制造商:WINBOND 制造商全稱:Winbond 功能描述:1M 】 4 BANKS 】 32BITS SDRAM