UT61L5128MC-12 데이터 시트보기 (PDF) - Utron Technology Inc
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UT61L5128MC-12 Datasheet PDF : 8 Pages
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Rev. 1.0
UTRON
UT61L5128
512K X 8 BIT HIGH SPEED CMOS SRAM
WRITE CYCLE 1 ( WE Controlled) (1,2,3,5)
Address
CE
tWC
tAW
tCW
tAS
tWP
tWR
WE
DOUT
tWHZ
High-Z
tOW
(4)
(4)
tDW
tDH
DIN
Data Valid
WRITE CYCLE 2 ( CE Controlled) (1,2,5)
tWC
Address
tAW
CE
tAS
tCW
tWR
tWP
WE
tWHZ
DOUT
High-Z
(4)
tDW
tDH
DIN
Data Valid
Notes :
1. WE or CE must be HIGH during all address transitions.
2. A write occurs during the overlap of a low CE and a low WE .
3. During a WE controlled with write cycle with OE LOW, tWP must be greater than tWHZ+tDW to allow the drivers to turn off and
data to be placed on the bus.
4. During this period, I/O pins are in the output state, and input singals must not be applied.
5. If the CE LOW transition occurs simultaneously with or after WE LOW transition, the outputs remain in a high
impedance state.
6. tOW and tWHZ are specified with CL = 5pF. Transition is measured ±500mV from steady state.
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
5
P80061
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