Here is the pin out.  I will have a better one for  you as soon as I start the write up...

		    ____________________
    Vcc & pullup 1 |	  HALFMOON	| 40 Keyboard CK
		 2 |			| 39 Serial Interrupt to CPU
		 3 |			| 38 Keyboard Interrup to CPU
		 4 |			| 37 
		 5 |			| 36 Latch Enable
		 6 |			| 35 Opcode bit 2
		 7 |			| 34 Opcode bit 1
   Keyboard data 8 |			| 33 Opcode bit 0
	I/0 Line 9 |			| 32 VCC
	Ack	10 |			| 31 GND
	Vcc	11 |			| 30 Address Line 7
	GND	12 |			| 29 Address Line 6
       20Mhz Ck 13 |			| 28 Address Line 5
		14 |			| 27 Address Line 4
		15 |			| 26 Serial Receive
		16 |			| 25 Serial Transmit
		17 |			| 24
		18 |			| 23
 Address Line 0	19 |			| 22 Address Line 3
 Address Line 1	20 |____________________| 21 Address Line 2
		   