CY7C1471BV33
CY7C1473BV33, CY7C1475BV33
Document #: 001-15029 Rev. *B Page 25 of 32
Switching Waveforms

Figure5 shows re ad-write timing waveform.[20, 21, 22]

Figure 5. Read/Write Timing

WRITE
D(A1)

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CLK

tCYC
tCL
tCH

10

CE

tCEH
tCES

WE

CEN

tCENH
tCENS
BWX

ADV/LD

tAH
tAS

ADDRESS A1 A2 A3 A4 A5 A6 A7

tDH
tDS

DQ

C

OMMAND

tCLZ
D(A1) D(A2) Q(A4)Q(A3)
D(A2+1)
tDOH tCHZ
tCDV
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

OE

tOEV
tOELZ
tOEHZ

DON’T CARE UNDEFINED

D(A5)
tDOH
Q(A4+1)
D(A7)Q(A6)
Notes
20.For this waveform ZZ is tied LOW.
21.When CE is LOW, CE1 is LOW, CE2 is HIGH, and CE3 is LOW. When CE is HIGH, CE1 is HIGH, CE2 is LOW or CE3 is HIGH.
22.Order of the Burst sequence is determined by the status of the MODE (0 = Linear, 1 = Interleaved). Burst operations are optional.
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