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K4E640412D データシートの表示(PDF) - Samsung
部品番号
コンポーネント説明
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K4E640412D
16M x 4bit CMOS Dynamic RAM with Extended Data Out
Samsung
K4E640412D Datasheet PDF : 21 Pages
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K4E660412D,K4E640412D
CAS - BEFORE - RAS SELF REFRESH CYCLE
NOTE : OE, A = Don
′
t care
CMOS DRAM
V
IH
-
RAS
V
IL
-
V
IH
-
CAS
V
IL
-
DQ0 ~ DQ3(7)
V
OH
-
V
OL
-
V
IH
-
W
V
IL
-
t
RP
t
RPC
t
CP
t
CSR
t
CEZ
t
WRP
t
WRH
t
RASS
t
RPS
t
CHS
t
RPC
OPEN
TEST MODE IN CYCLE
NOTE : OE , A = Don
′
t care
V
IH
-
RAS
V
IL
-
V
IH
-
CAS
V
IL
-
V
IH
-
W
V
IL
-
DQ0 ~ DQ3(7)
V
OH
-
V
OL
-
t
RP
t
RPC
t
CP
t
CSR
t
CHR
t
WTS
t
WTH
t
OFF
t
RC
t
RAS
OPEN
t
RP
t
RPC
Don
′
t care
Undefined
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