CY7C1471BV33
CY7C1473BV33, CY7C1475BV33
Document #: 001-15029 Rev. *B Page 25 of 32
Switching WaveformsFigure5 shows re ad-write timing waveform.[20, 21, 22]
Figure 5. Read/Write Timing
WRITE
D(A1)
123456789
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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