參數(shù)資料
型號(hào): MB811171622A-67
廠商: Fujitsu Limited
英文描述: CMOS 2×512K×16 Bit Synchronous Dynamic RAM(CMOS 2×512K×16 位同步動(dòng)態(tài)RAM)
中文描述: 的CMOS為512k × 2 × 16位同步動(dòng)態(tài)隨機(jī)存儲(chǔ)器(2 ×的CMOS為512k × 16位同步動(dòng)態(tài)RAM)的
文件頁(yè)數(shù): 6/43頁(yè)
文件大?。?/td> 601K
代理商: MB811171622A-67
6
MB811171622A-125/-100/-84/-67
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
DQML
DQMU
n-1
n
Data Write/Output Enable for Lower Byte
ENBL L
H
X
L
X
Data Write/Output Enable for Upper Byte
ENBL U
H
X
X
L
Data Mask/Output Disable for Lower Byte
MASK L
H
X
H
X
Data Mask/Output Disable for Upper Byte
ENBL U
H
X
X
H
Current
State
Function
Notes Symbol
CKE
CS
RAS CAS
WE
A
(BA)
A
(AP)
A
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
*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
相關(guān)PDF資料
PDF描述
MB811171622A-84 CMOS 2×512K×16 Bit Synchronous Dynamic RAM(CMOS 2×512K×16 位同步動(dòng)態(tài)RAM)
MB81117422A-100 CMOS 2×2M ×4 Bit Synchronous Dynamic RAM(CMOS 2×2M ×4 位同步動(dòng)態(tài)RAM)
MB81117422A-125 CMOS 2×2M ×4 Bit Synchronous Dynamic RAM(CMOS 2×2M ×4 位同步動(dòng)態(tài)RAM)
MB81117422A-67 CMOS 2×2M ×4 Bit Synchronous Dynamic RAM(CMOS 2×2M ×4 位同步動(dòng)態(tài)RAM)
MB81117422A-84 CMOS 2×2M ×4 Bit Synchronous Dynamic RAM(CMOS 2×2M ×4 位同步動(dòng)態(tài)RAM)
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