CY7C1411BV18, CY7C1426BV18
CY7C1413BV18, CY7C1415BV18
Switching Waveforms
Figure 5. Read/Write/Deselect Sequence [29, 30, 31]
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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| ||||||||
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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
29.Q00 refers to output from address A0. Q01 refers to output from the next internal burst address following A0, that is, A0+1.
30.Outputs are disabled
31.In this example, if address A2 = A1, then data Q20 = D10, Q21 = D11, Q22 = D12, and Q23 = D13. Write data is forwarded immediately as read results. This note applies to the whole diagram.
Document Number: | Page 25 of 30 |
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