24Cxx version 1.0 - Copyright (C) 2000 Luca Ferretti <luca.ferretti@wind.it>


Follows the schematics of the slightly modified Ludipipo (by Ludwig Catta) 
PIC programmer and the i2c e2prom adapter. 

The pin numbers on the left side of the schematic are referred 
to a 9 pin serial connector.

    
  TxD ---*----------------------------+
  (3)    |                            |             |
        ---                          ---           -*- electrical connection
        | |                          | |            |
        | | 2k2                      | | 10k
        ---         1N4148           ---            |
         |       |\ |                 |            -|- no connection
         *-------| >|----*--------+   |             |          
     \   |       |/ |    |        |   |
      \----\             |        |   |
         ^  \            | +      |   |
        / \         47u ---    14 |   | 4
       /   \  5V1       ---   +----------+
       -----             |    |  Vdd Vpp |           
         |               |    |          |           +----------+ 
         |               |  5 |          |           |  24CXX   |
  GND ---*---------------*----| Vss      |          1|          |8
  (5)           22k           |          |      +----| A0   VCC |------>Vdd
               -----       12 |          |      |   2|          |7
  RTS ---------|   |----------| RB6      |      *----| A1   WC/ |----+
  (7)          -----          |          |      |   3|          |6   |
               -----       13 |          |      *----| A2   SCL |----|->RB6
  DTR ---------|   |----*-----| RB7      |      |   4|          |5   |
  (4)          -----    |     |          |      *----| GND  SDA |----|->RB7
                2k2     |     |    PIC   |      |    |          |    |
  CTS ------------------+     +----------+      |    +----------+    |
  (8)                                           |                    |
                                           Vss<-*--------------------+


   	WARNING: On the programmer is also present Vpp, if you use
        	 this instead of Vdd in the adapter you can IRREVERSIBLE 
		 DAMAGE your e2prom !


	You can cable this on the same board of the programmer (the preferred
	choice if you DIY) or build a socket adapter over a small piece of pref
	board using an 8 pin socket and two pin strips that will be connected 
	to the programmer in piggy back, this should give you an idea : 


		     Top view			         Side view

	+----------------------------------+ 
	| o o o o o o o o o   +---------+  |                _______
	|		      | O O O O |  |                |     |   <--socket
	|		      |         |  |    ==||||||||=========== <-- pref
	| 		      | O O O O |  |      ||||||||            <-- pins
	| o o o o o o o o o   +---------+  |		
	+----------------------------------+