Parts list for Finger Board
Bill Of Materials, all parts can be found from Radio Shack, Digikey, and Jameco. All resistors ½ Watt or less. All similar parts found on "Handy Board" can also be used on Finger Board.
| Item # | Quantity | Part Reference # | Description |
| 1 | 1 | C1 | 1uf tantalum capacitor, 25 volts or greater |
| 2 | 1 | C2 | .1uf monolithic capacitor |
| 3 | 2 | C4,C3 | 22pf capacitor (20pf can be substituted) |
| 4 | 3 | C5,C6,C7 | .1uf monolithic capacitor |
| 5 | 5 | C8,C9,C10,C11,C12 | 10uf tantalum capacitor, 16 volt (1uf can be substituted) |
| 6 | 1 | C13 | 10uf tantalum capacitor, 6.3 volt |
| 7 | 1 | D1 | HLMP-1790 LED (2ma rating) |
| 8 | 1 | JP1 | Header 4x1 |
| 9 | 1 | JP2 | Header 7x2 |
| 10 | 1 | JP4 | Header 4x2 |
| 11 | 2 | JP11,JP6 | Header 2x2 |
| 12 | 2 | JP7,JP8 | Header 8x2 |
| 13 | 1 | JP9 | Header 9x2 |
| 14 | 4 | JP10,JP12,JP13,JP16 | Header 2x1 |
| 15 | 2 | JP14,JP15 | Header 3x2 |
| 16 | 1 | P1 | Female DB9 pin connector |
| 17 | 3 | R1,R5,R6 | 10K ohm resistor |
| 18 | 1 | R2 | 47K ohm resistor (10K ohm can be substituted) |
| 19 | 1 | R3 | 1Meg ohm resistor |
| 20 | 1 | R7 | 1K ohm resistor |
| 21 | 1 | S1 | Momentary normally open push button switch. |
| 22 | 1 | U1 | MC34064P-5 (Motorola) |
| 23 | 1 | U2 | LM7805 (+5 volt regulator) |
| 24 | 1 | U3 | DS1230AB/Y Dallas 256kbit (32Kbyte) battery backed static ram. Substitute a DS1244Y if a real time clock is needed. You can also use a Dallas DS1216D 28 pin lithium battery socket but will need separate 256kbit 62256-100LP static memory chip |
| 25 | 1 | U4 | MC68HC11A1FN CPU (Motorola) |
| 26 | 1 | U5 | 74HC573 |
| 27 | 1 | U8 | 74HC00 (found on CPU board, referenced as U6 on Finger Board schematic) |
| 28 | 1 | U7 | 74HC138 |
| 29 | 1 | U8 | MAX232CPE (Maxim, found on Communications board) |
| 30 | 1 | Y1 | 8Mhz Crystal - Series |
| 31 | 1 | R4 | 47Kohm bussed resistor pack. (Part# 9-1-473 or 10-1-473) |
| 32 | 1 | U3 | 28 pin socket |
| 33 | 1 | U4 | 52 pin PGA socket |
| 34 | 2 | |
3x2 Female IDC connectors |
| 35 | 1 | |
Ribbon cable - 1 foot length , 6 conductor |
| 36 | 1 | Optional | 16x2 character LCD module |
| 37 | 1 | Optional | Beeper - 5 volt TTL level |
Additional items:
½" 4-40 plastic standoffs for
mounting.
2 jumper shunts for JP6
Use headers with a contact
lead length of .230"(shorter style) for expansion boards.