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CY7C109D Datasheet(PDF) 7 Page - Cypress Semiconductor

Part # CY7C109D
Description  1-Mbit (128K x 8) Static RAM
PDF  11 Pages
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Manufacturer  CYPRESS [Cypress Semiconductor]
Direct Link  http://www.cypress.com
Logo CYPRESS - Cypress Semiconductor

CY7C109D Datasheet(HTML) 7 Page - Cypress Semiconductor

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CY7C109D
CY7C1009D
Document #: 38-05468 Rev. *E
Page 7 of 11
Write Cycle No. 1 (CE1 or CE2 Controlled) [17, 18]
Write Cycle No. 2 (WE Controlled, OE HIGH During Write) [17, 18]
Switching Waveforms (continued)
tWC
DATA VALID
tAW
tSA
tPWE
tHA
tHD
tSD
tSCE
tSCE
CE1
ADDRESS
CE2
WE
DATA IO
tHD
tSD
tPWE
tSA
tHA
tAW
tSCE
tSCE
tWC
tHZOE
DATAIN VALID
NOTE 19
CE1
ADDRESS
CE2
WE
DATA IO
OE
Notes
17. Data IO is high impedance if OE = VIH.
18. If CE1 goes HIGH or CE2 goes LOW simultaneously with WE going HIGH, the output remains in a high-impedance state.
19. During this period the IOs are in the output state and input signals should not be applied.
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