Cypress CY7C1462AV33 - Manual (Page 20)

CY7C1460AV33
CY7C1462AV33
CY7C1464AV33
Document #: 38-05353 Rev. *D Page 20 of 27
Switching Waveforms
Read/Write/Timing [24, 25, 26]
Notes:
24. For this waveform ZZ is tied low.
25. When CE is LOW, CE
1
is LOW, CE
2
is HIGH and CE
3
is LOW. When CE is HIGH,CE
1
is HIGH or CE
2
is LOW or CE
3
is HIGH.
26. Order of the Burst sequence is determined by the status of the MODE (0 = Linear, 1 = Interleaved).Burst operations are optional.
WRITE
D(A1)
1 2 3 4 5 6 7 8 9
CLK
t CYC
t CL t CH
10
CE
t CEH t CES
WE
CEN
t CENH t CENS
BW x
ADV/LD
t AH t AS
ADDRESS A1 A2 A3 A4 A5 A6 A7
t DH t DS
Data
In-Out (DQ)
t CLZ
D(A1) D(A2) D(A5) Q(A4) Q(A3) D(A2+1)
t DOH t CHZ
t CO
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
t OEV
t OELZ
t OEHZ
t DOH
DON’T CARE UNDEFINED
Q(A6) Q(A4+1)
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