PLCC and DIP EPROMs : Pinouts Please !!!!!!!!!!

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Article #16783

#16783

From: Marky Mark
Date: Tue, 26 Jan 1993 20:38

72 lines
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I have an eprom programmer and I want to make a converter so
that the programer can program a PLCC device.

I would like to mimic a 27512 normal DIP device.  The numbers on
the PLCC device are 27512 - 25.  Could any one tell me a bit about this
chip ..... ie, it's programming voltage, etc.

I would also like the pinouts for the socket.

        *       ?
        | | | | | | | | |
      --                 --
      --                 --
      --                 --
      --                 --
      --                 --
      --                 --
      --                 --
        | | | | | | | | |


Is pin 1 at ? or *, and which way does numbering go CW or CCW ??


Could any fill the table out and mail it back to me ??


       DIP(27512)     PLCC(27512)
       Pin #          Pin #             Disc
=================================================
        1                               A15
        2                               A12
        3                               A7
        4                               A6
        5                               A5
        6                               A4
        7                               A3
        8                               A2
        9                               A1
        10                              A0
        11                              O0
        12                              O1
        13                              O2
        14                              Gnd
        15                              O3
        16                              O4
        17                              O5
        18                              O6
        19                              O7
        20                              CE
        21                              A10
        22                              OE/Vpp
        23                              A11
        24                              A9
        25                              A8
        26                              A13
        27                              A14
        28                              Vcc





                        Thanks VERY much,


                                Mark.
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From: mckillnm@unix2.tcd.ie (Marky Mark)
Newsgroups: sci.electronics
Subject: PLCC and DIP EPROMs : Pinouts Please !!!!!!!!!!
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Date: 26 Jan 93 20:38:28 GMT
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