CY7C1511JV18, CY7C1526JV18
CY7C1513JV18, CY7C1515JV18
Switching Waveforms
Figure 3. Read/Write/Deselect Sequence [26, 27, 28]
NOP | READ | WRITE | READ | WRITE | NOP | 7 |
1 | 2 | 3 | 4 | 5 | 6 |
K
K RPS
WPS
t KH
tKL t CYC t KHKH
t SC tHC | t SC t HC |
A | A0 | A1 | A2 |
| tSA | tHA |
|
tSD
D
Q | Q00 |
A3 |
|
|
|
|
tHD | t HD |
|
|
|
tSD |
|
|
|
|
D12 |
|
| D32 | D33 |
Q02 | Q20 | Q21 | Q22 | |
tCO | tCQDOH |
|
| t CHZ |
t KHCH
t KHCH t CLZ
tDOH |
|
|
|
|
|
|
|
|
| tCQD |
|
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| ||
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| ||||||||
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C
C
CQ
CQ
t CQH
t CYC | t KHKH |
| |
| t | CQOH | t CCQO |
|
|
| |
t CQHCQH |
|
| t CCQO |
|
|
| t CQOH |
t KH
tKL
DON’T CARE
UNDEFINED
Notes
26.Q00 refers to output from address A0. Q01 refers to output from the next internal burst address following A0, that is, A0+1.
27.Outputs are disabled
28.In this example, if address A2 = A1, then data Q20 = D10 and Q21 = D11. Write data is forwarded immediately as read results. This note applies to the whole diagram.
Document Number: | Page 24 of 27 |
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