Cypress AN20639 Note d'application - Page 2
Parcourez en ligne ou téléchargez le pdf Note d'application pour {nom_de_la_catégorie} Cypress AN20639. Cypress AN20639 3 pages. Comparison between cy14b256l and stk14c88-3 nvsram
Imprimer la pageTable 1. Comparison Table (continued)
Specification
Auto Store/Power Up Recall
2
t
[
]
HRECALL
3
t
[
]
STORE
4
V
[
]
SWITCH
Notes
2.
The power up recall specification is the most dramatic difference between the two devices. To accommodate the much slower specification of the CY14B256L
device, system timing modifications may be required.
3.
Store timing differences are not an issue because it occurs as a background operation when the system is powering down.
4.
Even though there are small differences here they are unlikely to cause system level problems.
Summary
In most applications you can directly substitute the CY14B256L for the STK14C88-3 nvSRAM.
November 11, 2008
CY14B256L (35 nsec)
20 ms max
12.5 ms max
No minimum
2.65V max
Document No. 001-20639 Rev. *C
STK14C88-3 (35 nsec)
550 µs max
10 ms max
2.7V min
2.95V max
AN20639
2
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