CY7C1470V25
CY7C1472V25
CY7C1474V25
Switching Waveforms
Read/Write/Timing[21, 22, 23]
1 | 2 t CYC 3 |
CLK |
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tCENS tCENH | tCH tCL |
CEN
tCES tCEH
CE
ADV/LD
WE
BWx
ADDRESS ![Read/Write/Timing[21, 22, 23]](/images/new-backgrounds/126841/12684139xi2.webp){kind=small}
A1 
A2
| 4 |
| 5 | 6 | 7 | |||||
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A3 | A4 | A5 |
| tCO |
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8 9
A6 
A7
10
tAS tAH
tDS tDH
tCLZ | tDOH |
tOEV tCHZ
Data
D(A1)
OE
D(A2) 
D(A2+1) 
Q(A3) 
Q(A4)
tOEHZ
Q(A4+1)
D(A5)
tDOH tOELZ
Q(A6)
WRITE | WRITE | BURST |
D(A1) | D(A2) | WRITE |
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| D(A2+1) |
READ | READ | BURST | WRITE | READ | WRITE |
Q(A3) | Q(A4) | READ | D(A5) | Q(A6) | D(A7) |
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| Q(A4+1) |
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DESELECT
DON’T CARE | UNDEFINED |
Notes:
21.For this waveform ZZ is tied LOW.
22.When CE is LOW, CE1 is LOW, CE2 is HIGH and CE3 is LOW. When CE is HIGH,CE1 is HIGH or CE2 is LOW or CE3 is HIGH.
23.Order of the Burst sequence is determined by the status of the MODE (0 = Linear, 1 = Interleaved).Burst operations are optional.
Document #: | Page 20 of 28 |
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