PA7540 データシートの表示（PDF） - Anachip Corporation
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PA7540 Datasheet PDF : 10 Pages
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waste. Programming of PEEL™ Arrays is supported by
many popular third party programmers.
Design Security and Signature Word
The PEEL™ Arrays provide a special EEPROM security bit
that prevents unauthorized reading or copying of designs.
Once set, the programmed bits of the PEEL™ Arrays
cannot be accessed until the entire chip has been
electrically erased. Another programming feature,
signature word, allows a user-definable code to be
programmed into the PEEL™ Array. The code can be read
back even after the security bit has been set. The signature
word can be used to identify the pattern programmed in the
device or to record the design revision.
Figure 12 - WinPLACE LCC and IOC screen
Figure 11 - WinPLACE Architectural Editor for
PA7540
Figure 13 - WinPLACE waveform and
simulator screen
5
04-02-051B
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