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UTRON
UT51C164
Rev 1.4
256K X 16 BIT EDO DRAM
UTRON TECHNOLOGY INC.
P90005
1F, No. 11, R&D Rd. II, Science-Based Industrial Park, Hsinchu, Taiwan, R. O. C.
TEL: 886-3-5777882 FAX: 886-3-5777919
21
VIH -
VIL -
VIH -
VIL -
RAS
VIH -
VIL -
VIH -
VIL -
UCAS,
LCAS
VIH -
VIL -
Address
VIH -
VIL -
WE VIH
-
VIL -
DQ
t RC(2)
t RAS(1)
t RP(3)
t CHR(49)
t RSH(12)
t
CRP(13)
t CRP(13)
t
ASR(8)
t CAH(11)
t
WCH(28)
COLUMN
ADDRESS
t RC(2)
t RAS(1)
t
RP(3)
t RCD(6)
t AR(23)
ROW
ADD
t RAH(9)
t RAD(24)
t ASC(10)
t
DH(33)
VIH -
VIL -
OE
VALID DATA -IN
tWCS(27)
t DS(32)
t
DHR(46)
VIH -
VIL -
Undefined
UTRON EDO Mode, X16 (2CAS) Device Timing Diagram
―
Waveforms of Hidden Refresh Cycle (Write)
don't care