Cypress CY14B104L - Manual (Page 13)

CY14B104L, CY14B104N
Document #: 001-07102 Rev. *L Page 13 of 25
Software Controlled STORE/RECALL Cycle
In the following table, the software controlled STORE/RECALL cycle parameters are listed. [25, 26]
Parameters Description
20 ns 25 ns 45 ns
Unit
Min Max Min Max Min Max
t
RC
STORE/RECALL Initiation Cycle Time 20 25 45 ns
t
SA
Address Setup Time 0 0 0 ns
t
CW
Clock Pulse Width 15 20 30 ns
t
HA
Address Hold Time 0 0 0 ns
t
RECALL
RECALL Duration 200 200 200
μs
t
SS
[27, 28] Soft Sequence Processing Time 100 100 100
μs
Switching Waveforms
Figure 12. CE and OE Controlled Software STORE/RECALL Cycle [26]
Figure 13. Autostore Enable / Disable Cycle
W
5&
W
5&
W
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W
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W
&:
W
6$
W
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W
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W
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W
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W
6725(
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5:,
W
66
W
+$
W
5&
W
5&
W
6$
W
&:
W
&:
W
6$
W
+$
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+$
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$GGUHVV $GGUHVV $GGUHVV
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5:,
W
66
Notes
25. The software sequence is clocked with CE controlled or OE controlled reads.
26. 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. After the sixth address read
cycle, no further read or write operation must be performed for t
SS
duration. If these conditions are not met, the software sequence is aborted.
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