參數(shù)資料
型號(hào): MB81164442A-84L
廠商: Fujitsu Limited
英文描述: CMOS 4×4M×16 BIT Synchronous Dynamic Random Access Memory (SDRAM)(CMOS 4×4M×16 位同步動(dòng)態(tài)RAM)
中文描述: 的CMOS 4 × 4米× 16位同步動(dòng)態(tài)隨機(jī)存取存儲(chǔ)器(SDRAM)(的CMOS 4 × 4米× 16位同步動(dòng)態(tài)RAM)的
文件頁(yè)數(shù): 6/46頁(yè)
文件大小: 642K
代理商: MB81164442A-84L
6
MB81164442A-125/-100/-84/-67/-125L/-100L/-84L/-67L
DQM TRUTH TABLE
CKE TRUTH TABLE
Notes:
*1.
*2.
The CSUS command requires that at least one bank is active. Refer to STATE DIAGRAM.
REF and SELF commands should only be issued after all banks have been precharged (PRE or PALL
command). Refer to STATE DIAGRAM.
SELF and PD commands should only be issued after the last read data have been appeared on DQ.
CKE should be held high within t
RC
.
*3.
*4.
Function
Command
CKE
DQM
n-1
n
Data Write/Output Enable
ENBL
H
X
L
Data Mask/Output Disable
MASK
H
X
H
Current
State
Function
Notes Symbol
CKE
CS
RAS CAS
WE
A
A
(BA)
13
,
A
(AP)
A
A
11
9-0
,
n-1
n
Bank Active
Clock Suspend Mode Entry
*1
CSUS
H
L
X
X
X
X
X
X
X
Any
*1
L
L
X
X
X
X
X
X
X
Clock
Suspend
Clock Suspend Mode Exit
L
H
X
X
X
X
X
X
X
Idle
Auto-refresh Command
*2
REF
H
H
L
L
L
H
X
X
X
Idle
Self-refresh Entry
*2, 3
SELF
H
L
L
L
L
H
X
X
X
Self Refresh Self-refresh Exit
*4 SELFX
L
H
L
H
H
H
X
X
X
L
H
H
X
X
X
X
X
X
Idle
Power Down Entry
*2, 3
PD
H
L
L
H
H
H
X
X
X
H
L
H
X
X
X
X
X
X
Power Down Power Down Exit
L
H
L
H
H
H
X
X
X
L
H
H
X
X
X
X
X
X
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