參數(shù)資料
型號(hào)： GLT5640L32-5.5
廠商： Electronic Theatre Controls, Inc.
英文描述： CMOS Synchronous DRAM 2M x 32 SDRAM
中文描述： 200萬(wàn)的CMOS同步DRAM × 32內(nèi)存
文件頁(yè)數(shù)： 14/72頁(yè)
文件大?。?/td> 2315K
代理商： GLT5640L32-5.5
G-LINK
GLT5640AL16
4M X 16 CMOS Synchronous Dynamic RAM
Feb 2004 (Rev.0.1)
G-Link Technology Corporation, Taiwan
Web : www.glink.com.tw Email : sales@glink.com.tw
TEL : 886-2-27968078
- 14 -
2.5 Command Truth Table for CKE (Note 1)
Current state
CKE
n - 1
n
H
X
L
H
L
H
L
H
L
H
L
L
H
H
H
H
H
H
H
H
H
L
H
L
H
L
H
L
L
H
L
L
H
X
L
H
(P.D.)
L
L
H
H
Both banks
idle
CKE
CS
RAS
CAS
WE
Address
Action
Notes
X
H
L
L
L
X
H
L
L
L
H
L
L
L
X
X
X
X
X
H
X
X
H
H
L
X
X
H
H
L
X
H
H
L
X
X
X
X
X
X
X
X
H
L
X
X
X
H
L
X
X
H
L
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
INVALID, CLK (n - 1)would exit S.R.
S.R. Recovery
S.R. Recovery
ILLEGAL
ILLEGAL
Maintain S.R.
Idle after tRC
Idle after tRC
ILLEGAL
ILLEGAL
Begin clock suspend next cycle
Begin clock suspend next cycle
ILLEGAL
ILLEGAL
Exit clock suspend next cycle
Maintain clock suspend
INVALID, CLK (n - 1) would exit P.D.
EXIT P.D. Idle
Maintain power down mode
Refer to operations in Operative
Command Table
Refer to operations in Operative
Command Table
Refer to operation in Operative
Command Table
Auto Refresh
Refer to operations in Operative
Command Table
Refer to operations in Operative
Command Table
Refer to operations in Operative
Command Table
Refer to operations in Operative
Command Table
Self refresh
Refer to operations in Operative
Command Table
Power down
Refer to operations in Operative
Command Table
Begin clock suspend next cycle
Exit clock suspend next cycle
Maintain clock suspend
2
2
Self refresh
(S.R.)
5
5
2
Self refresh
recovery
X
X
2
Power down
H
H
L
H
X
X
H
H
L
L
H
X
H
H
H
H
L
L
L
L
L
L
H
L
X
Op - Code
H
L
H
X
X
X
H
L
L
H
X
X
H
L
L
L
H
X
H
H
L
L
L
L
L
L
L
L
H
L
X
3
Op - Code
L
H
X
H
X
X
X
X
X
X
X
X
X
X
3
H
L
L
L
H
L
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
4
Any state
other than
listed above
1.
2.
H : High level, L : low level, X : High or low level (Don't care).
CKE Low to High transition will re-enable CLK and other inputs asynchronously. A minimum setup time must be satisfied before any
command other than EXIT.
Power down and Self refresh can be entered only from the both banks idle state.
Must be legal command as defined in Operative Command Table.
Illegal if t
SREX
is not satisfied.
3.
4.
5.
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