Cypress CY7C1041DV33 Manuel d'utilisateur télécharger pdf (Page 9)

CY7C1041DV33

Document #: 38-05473 Rev. *E Page 9 of 13

Figure 9. Write Cycle No. 4 (WE Controlled, OE LOW)

Truth Table

CE OE WE BLE BHE

–IO

Mode Power

H X X X X High-Z High-Z Power Down Standby (I

)

L L H L L Data Out Data Out Read All Bits Active (I

)

L L H L H Data Out High-Z Read Lower Bits Only Active (I

)

L L H H L High-Z Data Out Read Upper Bits Only Active (I

)

L X L L L Data In Data In Write All Bits Active (I

)

L X L L H Data In High-Z Write Lower Bits Only Active (I

)

L X L H L High-Z Data In Write Upper Bits Only Active (I

)

L H H X X High-Z High-Z Selected, Outputs Disabled Active (I

)

Switching Waveforms (continued)

SCE

PWE

DATA IO

ADDRESS

BHE

, BLE

LZWE

HZWE

NOTE 21

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Cypress CY7C1041DV33 Manuel d'utilisateur Page 9