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CY7C109D Datasheet(PDF) 8 Page - Cypress Semiconductor |
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CY7C109D Datasheet(HTML) 8 Page - Cypress Semiconductor |
8 / 14 page CY7C109D CY7C1009D Document #: 38-05468 Rev. *G Page 8 of 14 Figure 3. Write Cycle No. 1 (CE1 or CE2 Controlled) [17, 18] Figure 4. 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 I/O tHD tSD tPWE tSA tHA tAW tSCE tSCE tWC tHZOE DATAIN VALID NOTE 19 CE1 ADDRESS CE2 WE DATA I/O OE Notes 17. Data I/O 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 I/Os are in the output state and input signals should not be applied. [+] Feedback |
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