UTRON
Rev 1.5
UT51C164
256K X 16 BIT EDO DRAM
UTRON EDO Mode, X16 (2CAS) Device Timing Diagram
― Waveform-s of Read -Modify-Write Cycle
RAS VIH -
VIL -
UCAS, VIH -
LCAS VIL -
Address
V IH
V IL
-
-
WE VIH -
VIL -
OE
VIH -
VIL -
DQ
VIH VOH-
VIL VOL-
t AR(23)
t RRW(37)
t RWC(36)
t CRP(13)
t RCD(6)
t CSH(4)
t RSH(12)
t CRW(40)
t ASR(8)
t RAH(9)
ROW
ADDRESS
t CAH(11)
t ASC(10)
COLUMN ADDRESS
t ACS
t RAD(24)
tRWD (39)
tCWD (38)
tAWD (41)
tCAA (20)
t RP(3)
t CRP(13)
tCWL(26)
tWP(29)
tRWL(31)
tOAC (17)
t RAC(19)
tCAC (18)
tOED (35)
tHZ (22)
t LZ(21)
VALID
DATA -OUT
tOEH(53)
tDS (32)
tDH (33)
VALID
DATA -IN
Don't Care Undefined
UTRON TECHNOLOGY INC.
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