PRELIMINARY
CY14B104LA, CY14B104NA
Software Controlled STORE/RECALL Cycle
In the following table, the software controlled STORE and RECALL cycle parameters are listed.[24, 25]
Parameters | Description |
| 20 ns |
| 25 ns |
| 45 ns | Unit | |||
Min |
| Max | Min |
| Max | Min |
| Max | |||
|
|
|
|
|
| ||||||
tRC | STORE/RECALL Initiation Cycle Time | 20 |
|
| 25 |
|
| 45 |
|
| ns |
tSA | Address Setup Time | 0 |
|
| 0 |
|
| 0 |
|
| ns |
tCW | Clock Pulse Width | 15 |
|
| 20 |
|
| 30 |
|
| ns |
tHA | Address Hold Time | 0 |
|
| 0 |
|
| 0 |
|
| ns |
tRECALL | RECALL Duration |
|
| 200 |
|
| 200 |
|
| 200 | μs |
Switching Waveforms
Figure 12. CE and OE Controlled Software STORE/RECALL Cycle[25]
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| W5& | W5& |
| |
$GGUHVV |
| $GGUHVV | $GGUHVV |
| |
| W6$ | W&: | W&: |
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&( |
| W+$ | W+$ |
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W |
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6$ | W+$ | W | |||
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| +$ | |
2( |
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| W+++' | |
+6% 6725(RQO\ | W/=&( | W+=&( | W'(/$< | W/=+6% | |
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'4 '$7$ |
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| +LJK,PSHGDQFH | |
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| W6725(W5(&$// | ||
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5:, |
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Figure 13. AutoStore Enable/Disable Cycle
| W5& | W5& | |
$GGUHVV | $GGUHVV | $GGUHVV | |
W6$ | W&: | W&: | |
| |||
&( | W+$ | W+$ | |
W6$ | |||
W+$ | |||
| W | ||
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| +$ | |
2( |
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| |
| W+=&( | W66 | |
W/=&( | W | ||
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| '(/$< | |
'4 '$7$ |
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5:, |
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Notes
24.The software sequence is clocked with CE controlled or OE controlled reads.
25.The six consecutive addresses must be read in the order listed in Table 1 on page 5. WE must be HIGH during all six consecutive cycles.
Document #: | Page 14 of 23 |
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