UTRON
Rev 1.5
UT51C164
256K X 16 BIT EDO DRAM
UTRON EDO Mode, X16 (2CAS) Device Timing Diagram
― EDO Page Mode Write Cycle
RAS V IH -
V IL -
t CRP(13)
UCAS, V IH -
LCAS V IL -
t ASR(8)
Address
V IH
V IL
-
-
WE
V IH -
V IL -
tAR(23)
t RCD(6)
t RAS(1)
t PC(42)
t CP(43)
t CAS(5)
⌇⌇
t CAS(5)
⌇⌇
t RSH(12)
t CAS(5)
t RAH(9)
t CSH(4)
t CAH (11)
ROW
ADDRESS
COLUMN
ADDRESS
t RAD(24)
t WCS(27)
t CWL(26)
t WCH(28)
t WP(29)
t ASC (10)
t CAH(11)
⌇⌇
COLUMN
ADDRESS
⌇⌇
t CWL(26)
t WCS(27)
t WCH(28)
t WP(29)
t WCS(27)
⌇⌇
⌇⌇
t CAR(44)
t ASC (10)
t CAH (11)
COLUMN
ADDRESS
t CWL(26)
t WCH(28)
t RWL(31)
t WP(29)
t RP(3)
t CRP(13)
OE
V IH -
V IL -
DQ VIH -
V IL -
t DS (32)
tDS(32)
t DH (33)
VALID
DATA IN
OPEN
⌇⌇
⌇⌇
tDS (32)
tDH (33)
VALID
DATA IN
VALID
DATA IN
t DH (33)
OPEN
Don't care
Undefined
UTRON TECHNOLOGY INC.
1F, No. 11, R&D Rd. II, Science-Based Industrial Park, Hsinchu, Taiwan, R. O. C.
TEL: 886-3-5777882 FAX: 886-3-5777919
16
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