CY7C1024DV33
Switching Waveforms (continued)
Figure 6. Write Cycle No. 2 (WE Controlled, OE HIGH During Write) [3, 16, 17]
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| tWC |
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ADDRESS |
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| tSCE |
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CE |
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| tAW |
| tHA |
| tSA | tPWE |
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WE |
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OE |
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| tSD | t |
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| HD |
DATA I/O | NOTE 18 | DATAIN VALID |
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| tHZOE |
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Figure 7. Write Cycle No. 3 (WE Controlled, OE LOW) [3, 17]
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| tWC |
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ADDRESS |
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| tSCE |
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CE |
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| tAW |
| tHA |
| tSA | tPWE |
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WE |
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| tSD | tHD |
DATA I/O | NOTE 18 | DATA VALID |
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| tHZWE |
| tLZWE |
Truth Table
CE1 | CE2 | CE3 | OE | WE | I/O0 – I/O23 | Mode | Power |
H | X | X | X | X | High Z | Power Down | Standby (ISB) |
X | L | X | X | X | High Z | Power Down | Standby (ISB) |
X | X | H | X | X | High Z | Power Down | Standby (ISB) |
L | H | L | L | H | Full Data Out | Read | Active (ICC) |
L | H | L | X | L | Full Data In | Write | Active (ICC) |
L | H | L | H | H | High Z | Selected, Outputs Disabled | Active (ICC) |
Note
18. During this period, the I/Os are in the output state and input signals are not applied.
Document Number: | Page 7 of 9 |
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