Poly61 MIDI Key Assigner parts list 	R. Grieb	6/08/2014

Ref Des		Description				Digi-Key Part #

U1		PIC18F2420 Microcontroller		PIC18F2420	

U2		74HC245 Octal Bi-Dir Data Buffer	74HC245
		
U3		74HC573 Octal Latch			74HC573

D1		1N4148 signal diode			1N4148

ISO1		6N138 Opto-Isolator			6N138

R1		1/4W 5% 220 Ohm resistor		220Q

R2		1/4W 5% 1.0K Ohm resistor		1.0KQ

R3		1/4W 5% 4.7K Ohm resistor		4.7KQ

RN1		10K 8-resistor network			4609X-101-103LF

C1,C2		0.1 uF Ceramic capacitor		BC1148CT
C5,C6

C3,C4		22 pF Ceramic capacitor			BC1005CT

X1		6.5 MHz crystal				X415
		
-		20-pin gold PCB header			SAM1111-20
		two required
		
		Sockets for PIC, two HC chips
		(optional but a good idea)