參數(shù)資料
型號: MB814800-70
廠商: Fujitsu Limited
英文描述: CMOS 512K ×8 BIT FAST PAGE MODE DYNAMIC RAM(CMOS 512K ×8位快速頁面存取模式動態(tài)RAM)
中文描述: 的CMOS為512k × 8位快速頁面模式的動態(tài)隨機存儲器(的CMOS為512k × 8位快速頁面存取模式動態(tài)內存)
文件頁數(shù): 16/26頁
文件大小: 327K
代理商: MB814800-70
16
MB814800-60/MB814800-70
t
RCD
Fig. 9 – FAST PAGE MODE READ CYCLE
RAS
V
IH
V
IL
V
IH
V
IL
V
IH
V
IL
V
IH
V
IL
V
IH
V
IL
CAS
WE
DQ
(Input)
A
0
to A
9
V
OH
V
OL
DQ
(Output)
V
IH
V
IL
OE
DESCRIPTION
The fast page mode of operation permits faster successive memory operations at multiple column locations of the same row address.
This operation is performed by strobing in the row address and maintaining RAS at a Low level and WE at a High level during all
successive memory cycles in which the row address is latched. The access time is determined by t
CAC
, t
AA
, t
CPA
, or t
OEA
, whichever
one is the latest in occurring.
“H” or
Valid Data
COL
ADD
ROW
ADD
COL
ADD
COL
ADD
HIGH-Z
HIGH-Z
HIGH-Z
HIGH-Z
t
CAS
t
RHCP
t
CRP
t
RASP
t
RP
t
CAS
t
RSH
t
RRH
t
CDD
t
ASC
t
PC
t
CSH
t
RAD
t
CP
t
ASR
t
CAH
t
CAL
t
CAH
t
ASC
t
OEL
t
CAH
t
ASC
t
RAL
t
RCH
t
RAH
t
RCS
t
RCH
t
RCH
t
DZC
t
CPA
t
OED
t
CDD
t
OH
t
DZC
t
DZC
t
RCS
t
RCS
t
AR
t
ON
t
OH
t
OFF
t
CAC
t
ON
t
CAC
t
ON
t
DZO
t
RAC
t
DZO
t
AA
t
OEZ
t
OEA
t
OH
t
OH
t
AA
t
OED
t
OFF
t
OEA
t
OEZ
t
DZO
相關PDF資料
PDF描述
MB81F643242C 4 X 512 K X 32 BIT SYNCHRONOUS DYNAMIC RAM
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