Re: EEPROM M27C512


<none@xxxxxxxx> schreef in bericht
news:nvqiu1h5j2i4kjjagqcl0atorqfqi8ql0f@xxxxxxxxxx
I have a M27C512 chip that I need to copy, however, it seems as though
there is a copy protection on the chip. Is there an IC programmer
that lets you make a 1 to 1 copy of a protect IC chip.

Every time I try to do a read from the chip, all it reads is FF FF FF.
Does anyone know how to get around this.

Thanks

FAIK the component you mentioned is an ordinary EPROM that comes in two
tastes: The OTP (one time programmable) and the UV erasable (with the
wellknown window). This type of components cannot have a copy protection as
the data must stay readable.

petrus bitbyter


.

Relevant Pages

  • Re: EEPROM M27C512
    ... Is there an IC programmer ... that lets you make a 1 to 1 copy of a protect IC chip. ... there is no copy protection on a 27512 (any ... variant) and the data being FF just means that the IC is currently ...
    (sci.electronics)
  • Re: li-poly battery protection for high cell count packs
    ... One complication is the readily available protection modules normally interpose ... which ties them back to their group of cells, ... The only chip I've ... Ironic, that old maxim;-) ...
    (sci.electronics.design)
  • Re: Trouble With my PIC Programmer (resolved)
    ... After checking that the software, firmware, and my adapter were all ... I figured that this meant that the chip had been ruined somehow ... Then I glanced up from the programmer and noticed ... to make sure that all of the connections were well connected to the ...
    (sci.electronics.design)
  • Re: PDS LOCk
    ... I can't believe that there wouldn't be naming conventions in place that would allow datasets to be named so as to get appropriate access protection even for test/training/non-production datasets. ... There is no reason why additional groups cannot be established (by a Security Admin) if new access patterns arise. ... If your real goal is to prevent unauthorized updates to a specific database, the UPDATE authority to that database should be restricted, whether other users can get to your JCL or not. ... 1)Iam just a programmer. ...
    (bit.listserv.ibm-main)
  • Re: spartan-3e idcode
    ... doubt the jtag circuits are fast enough to respond to anything above ... i hooked my board into the jtag chain of digilent nexsys ... programmer. ... The chip is setup to configure over SPI. ...
    (comp.arch.fpga)