CY7C1470V25-250AXC CYPRESS [Cypress Semiconductor], CY7C1470V25-250AXC Datasheet - Page 21

• Manufacturer Part Number: CY7C1470V25-250AXC
• Manufacturer: CYPRESS [Cypress Semiconductor]

Document #: 38-05290 Rev. *E
Switching Waveforms
Read/Write/Timing
Notes:
21. For this waveform ZZ is tied LOW.
22. When CE is LOW, CE
23. Order of the Burst sequence is determined by the status of the MODE (0 = Linear, 1 = Interleaved).Burst operations are optional.
In-Out (DQ)
ADDRESS
ADV/LD
Data
CEN
BW
CLK
WE
OE
CE
x
t
t
t
CENS
AS
CES
[21, 22, 23]
WRITE
1
D(A1)
A1
is LOW, CE
1
t
t
CENH
t
AH
CEH
2
WRITE
D(A2)
is HIGH and CE
2
A2
t
CH
t CYC
t
t
DS
CL
D(A2+1)
BURST
WRITE
D(A1)
3
3
t
is LOW. When CE is HIGH,CE
DH
PRELIMINARY
DON’T CARE
D(A2)
Q(A3)
READ
A3
4
D(A2+1)
READ
Q(A4)
A4
5
t
t
CO
CLZ
1
is HIGH or CE
UNDEFINED
Q(A4+1)
BURST
READ
Q(A3)
6
t
DOH
t
OEHZ
2
is LOW or CE
WRITE
D(A5)
Q(A4)
A5
7
t
OEV
t
OELZ
3
is HIGH.
Q(A4+1)
READ
Q(A6)
A6
8
t
t
DOH
CHZ
CY7C1470V25
CY7C1472V25
CY7C1474V25
WRITE
D(A7)
D(A5)
9
A7
Page 21 of 27
DESELECT
10
Q(A6)