Cypress CY62128EV30 Manual do Utilizador descarregar pdf (Página 7)

CY62128EV30

Document #: 38-05579 Rev. *D Page 7 of 11

Figure 5. Write Cycle No. 2 (CE1 or CE2 controlled)

[10, 14, 18, 19]

Figure 6. Write Cycle No. 3 (WE controlled, OE LOW)

[10, 19]

Switching Waveforms (continued)

DATA VALID

PWE

SCE

ADDRESS

DATA IO

DATA VALID

LZWE

PWE

SCE

HZWE

ADDRESS

DATA IO

NOTE

Table 2. Truth Table for CY62128EV30

WE OE Inputs/Outputs Mode Power

H X X X High Z Deselect/Power Down Standby (I

)

X L X X High Z Deselect/Power Down Standby (I

)

L H H L Data Out Read Active (I

)

L H H H High Z Output Disabled Active (I

)

L H L X Data in Write Active (I

)

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Cypress CY62128EV30 Manual do Utilizador Página 7