piclist 1999\08\14\230348a >
Thread: i2c controller question
www.piclist.com/techref/i2cs.htm?key=i2c
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face BY : Mark Willis email (remove spam text)



> Panos Kenterlis wrote:
> <snipped>
> BTW can you tell me what is the capacity of an EPROM chip i just found
> ?? It has the following label on it 27C64A-20 FA (FES5486   8829VD). I
> pressume the access time is 20ns.. am i wrong ??
> <snipped>

 64kbit, i.e. 8 bit x 8k Byte, EPRom.  20nS is incorrect, too, usually
those -20 parts are 200 nS.  (About the fastest EPRoms get is, oh, 45 or
50 nS, that I know of.)  See (for example)
http://www.amd.com/products/nvd/techdocs/11419.pdf for data on AMD's
Am27C64.

 Mark

<37B62DC4.5E5F287@nwlink.com> 7bit

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