CY7C1316JV18, CY7C1916JV18
CY7C1318JV18, CY7C1320JV18
Switching Waveforms
Figure 3. Read/Write/Deselect Sequence [24, 25, 26]
NOP |
| READ | READ |
1 |
| 2 | 3 |
K |
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tKH | tKL | tCYC | tKHKH |
K |
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LD | tSC |
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R/W |
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NOP | NOP | WRITE | WRITE | READ |
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4 | 5 | 6 | 7 | 8 | 9 | 10 | |||
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A | A0 | A1 |
tSA |
| tHA |
DQ
tKHCH tCLZ 
tCO 
C
A2 | A3 |
tHD
tSD
Q00 Q01 Q10 | Q11 |
tCQDOH |
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tDOH | tCHZ |
tCQD |
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A4
tHD
tSD
D21 | D30 | D31 |
Q41 
t KHCH
C#
tKH tKL |
| tCYC | tKHKH |
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CQ
tCQOH
tCCQO
tCQOH 
CQ#
tCCQO | tCQH |
| tCQHCQH | ||||
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DON’T CARE
UNDEFINED
Notes
24.Q00 refers to output from address A0. Q01 refers to output from the next internal burst address following A0, that is, A0 + 1.
25.Outputs are disabled
26.In this example, if address A2 = A1, then data D20 = Q10 and D21 = Q11. Write data is forwarded immediately as read results. This note applies to the whole diagram.
Document Number: | Page 23 of 26 |
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