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Internet Message Format  |  1993-01-28  |  2.9 KB
  1. Path: sparky!uunet!opl.com!hri.com!noc.near.net!news.Brown.EDU!qt.cs.utexas.edu!yale.edu!ira.uka.de!math.fu-berlin.de!news.netmbx.de!Germany.EU.net!mcsun!ieunet!tcdcs!unix2.tcd.ie!mckillnm
  2. From: mckillnm@unix2.tcd.ie (Marky Mark)
  3. Newsgroups: sci.electronics
  4. Subject: PLCC and DIP EPROMs : Pinouts Please !!!!!!!!!!
  5. Message-ID: <mckillnm.728080708@unix2.tcd.ie>
  6. Date: 26 Jan 93 20:38:28 GMT
  7. Sender: usenet@cs.tcd.ie (NN required at ashe.cs.tcd.ie)
  8. Organization: Trinity College, Dublin
  9. Lines: 72
  10. Nntp-Posting-Host: unix2.tcd.ie
  11.  
  12. I have an eprom programmer and I want to make a converter so
  13. that the programer can program a PLCC device.
  14.  
  15. I would like to mimic a 27512 normal DIP device.  The numbers on
  16. the PLCC device are 27512 - 25.  Could any one tell me a bit about this
  17. chip ..... ie, it's programming voltage, etc.
  18.  
  19. I would also like the pinouts for the socket.
  20.  
  21.         *       ?
  22.         | | | | | | | | |
  23.       --                 --
  24.       --                 --
  25.       --                 --
  26.       --                 --
  27.       --                 --
  28.       --                 --
  29.       --                 --
  30.         | | | | | | | | |
  31.  
  32.  
  33. Is pin 1 at ? or *, and which way does numbering go CW or CCW ??
  34.  
  35.  
  36. Could any fill the table out and mail it back to me ??
  37.  
  38.  
  39.        DIP(27512)     PLCC(27512)
  40.        Pin #          Pin #             Disc
  41. =================================================
  42.         1                               A15
  43.         2                               A12
  44.         3                               A7
  45.         4                               A6
  46.         5                               A5
  47.         6                               A4
  48.         7                               A3
  49.         8                               A2
  50.         9                               A1
  51.         10                              A0
  52.         11                              O0
  53.         12                              O1
  54.         13                              O2
  55.         14                              Gnd
  56.         15                              O3
  57.         16                              O4
  58.         17                              O5
  59.         18                              O6
  60.         19                              O7
  61.         20                              CE
  62.         21                              A10
  63.         22                              OE/Vpp
  64.         23                              A11
  65.         24                              A9
  66.         25                              A8
  67.         26                              A13
  68.         27                              A14
  69.         28                              Vcc
  70.  
  71.  
  72.  
  73.  
  74.  
  75.                         Thanks VERY much,
  76.  
  77.  
  78.                                 Mark.
  79. --
  80.   _ _ _                 _ _ _                        |  mckillnm@unix2.tcd.ie
  81.  ' ) ) )         /     ' ) ) )    /     /) /)        |-------------------------
  82.   / / / __  __  /_      / / / _  /_ o  // // _  __   |As they say in Russia ..
  83.  / ' (_(_(_/ (_/ <_    / ' (_(__/ <_(_(/_(/_(<_/) )_ |    "Mascow...." 
  84.