Cypress Semiconductor CY7C1231H Manual de usuario descargar pdf (Pagina 9)

CY7C1231H

Document #: 001-00207 Rev. *B Page 9 of 12

Switching Waveforms

Read/Write Waveforms

[18, 19, 20]

Notes:

18.

For this waveform ZZ is tied LOW.

19. When CE

is LOW, CE

is HIGH and CE

is LOW. When CE is HIGH, CE

is HIGH or CE

is LOW or CE

is HIGH.

20. Order of the Burst sequence is determined by the status of the MODE (0 = Linear, 1 = Interleaved). Burst operations are optional.

WRITE

D(A1)

123456789

CLK

CYC

CEH

CES

CEN

CENH

CENS

[A:B]

ADV/LD

ADDRESS

A1 A2

A5 A6 A7

OMMAND

CLZ

D(A1) D(A2) Q(A4)Q(A3)

D(A2+1)

DOH

CHZ

CDV

WRITE

D(A2)

BURST

WRITE

D(A2+1)

READ

Q(A3)

READ

Q(A4)

BURST

READ

Q(A4+1)

WRITE

D(A5)

READ

Q(A6)

WRITE

D(A7)

DESELECT

OEV

OELZ

OEHZ

DON’T CARE UNDEFINED

D(A5)

DOH

Q(A4+1)

D(A7)Q(A6)

1 2 3 4 5 6 7 8 9 10 11 12

CY7C1231H 1

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Cypress Semiconductor CY7C1231H Manual de usuario Pagina 9

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