

FINCH Adapter Board
- Size
- 195 × 101.7 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 59
- Nets
- 161
- Pads
- 502
- Tracks, vias
- 2,495, 102
- Routed
- Yes
- KiCad
- KiCad 4
- Created
- 11 Jan 2016
- Updated
- 3 Nov 2026
Overview
FINCH Adapter Board is an open-source printed circuit board by OlliL, from the OlliL/S8000 repository on GitHub. It is a 2-layer board of 195 × 101.7 mm with 59 parts on 161 nets, routed with 2,495 tracks and 102 vias.
It is built around the 74LS125DC, 74LS163APC and 74LS00SC, with the 74LS04PC and 74LS109PC among its other parts. Its parts include 26 capacitors, 19 ICs, 5 connectors, 2 resistors and 1 switch. It belongs with the interfaces and adapters boards of this library.
Main components
574LS125DC
-0℃~+70℃ 1 10ns@5.5V,50pF 15mA 18mA 24mA 4 4.5V~5.5V 74LS Power-off isolation、Output enable Tri-State Unidirectional - Buffers, Drivers, Receivers, TransceiversTexas InstrumentsBuffers, Drivers, Receivers, Transceivers74LS163APC
DIP-164 74LS Programmable divide ratio、Reset function、Cascade counter、Synchronous counting DIP-16 Counters, Dividers ROHSTexas InstrumentsCounters, Dividers74LS00SC
-0℃~+70℃ 15ns@5V,50pF 2 2.7V 2V 4 4.75V~5.25V 400uA 500mV 74LS 800mV 8mA NAND Gate - Logic Gates ROHSTexas InstrumentsLogic Gates74LS04PC
PDIP-140℃~+70℃ 4.75V~5.25V 6 6.6mA 74LS PDIP-14 InvertersonsemiInverters74LS109PC
-0ns 0℃~+70℃ 2 20ns、30ns 25MHz 25ns@5V,15pF、35ns@5V,50pF 4.75V~5.25V 400uA 74LS Series 8mA 8mA Asynchronous Complementary JK-Type Rising Edge Set and Reset - Flip FlopsTexas InstrumentsFlip Flops
Parts
59| Qty | Value | Footprint | References |
|---|---|---|---|
| 24 | 100nF | Capacitors_ThroughHole:C_Disc_D3_P2.5 | C1, C2, C10, C11, C12, C13, C14, C15, C16, C17, C18, C19, C20, C21, C22, C23 +8 |
| 5 | 74LS163 | Housings_DIP:DIP-16_W7.62mm_LongPads | U10, U11, U12, U19, U20 |
| 3 | 75107 | Housings_DIP:DIP-14_W7.62mm_LongPads | U13, U16, U17 |
| 3 | eMountingHole_3.2mm_M3 | Mounting_Holes:MountingHole_3.2mm_M3 | MOUNT1, MOUNT2, MOUNT3 |
| 2 | 22uF | Discret:CP6 | C25, C26 |
| 2 | 7417 | Housings_DIP:DIP-14_W7.62mm_LongPads | U1, U2 |
| 2 | 750 | Discret:R4 | R1, R2 |
| 2 | 75110 | Housings_DIP:DIP-14_W7.62mm_LongPads | U14, U18 |
| 1 | 1k | Pin_Headers:Pin_Header_Straight_1x06 | RN1 |
| 1 | 56R | Pin_Headers:Pin_Header_Straight_1x06 | RN2 |
| 1 | 7416 | Housings_DIP:DIP-14_W7.62mm_LongPads | U3 |
| 1 | 74LS00 | Housings_DIP:DIP-14_W7.62mm_LongPads | U6 |
| 1 | 74LS04 | Housings_DIP:DIP-14_W7.62mm_LongPads | U8 |
| 1 | 74LS08 | Housings_DIP:DIP-14_W7.62mm_LongPads | U15 |
| 1 | 74LS109 | Housings_DIP:DIP-16_W7.62mm_LongPads | U5 |
| 1 | 74LS125 | Housings_DIP:DIP-14_W7.62mm_LongPads | U7 |
| 1 | 74LS138 | Housings_DIP:DIP-16_W7.62mm_LongPads | U4 |
| 1 | 82R | Housings_DIP:DIP-16_W7.62mm_LongPads | RN3 |
| 1 | CONN_01X07 | footprints:Conn_AMP-1-87270-5 | J4 |
| 1 | CONN_01X10 | footprints:Conn_Molex-26-60-5100 | J5 |
| 1 | CONN_02X10 | footprints:Conn_AMP-1-87456-6 | J3 |
| 1 | CONN_02X20 | Pin_Headers:Pin_Header_Angled_2x20 | J1 |
| 1 | CONN_02X25 | footprints:Socket_Slot_2x25 | J2 |
| 1 | DIPS_04 | Buttons_Switches_ThroughHole:SW_DIP_x4_Slide | SW1 |
Questions
How big is the FINCH Adapter Board PCB?
It measures 195 × 101.7 mm and has 2 copper layers, 1.6 mm thick.
What parts does the FINCH Adapter Board use?
59 parts, built around the 74LS125DC, 74LS163APC, 74LS00SC and 74LS04PC. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the FINCH Adapter Board KiCad files?
From the OlliL/S8000 repository on GitHub, at the commit this page was made from: the board is CircuitDiagrams/FINCH_Adapter_Board/FINCH_Adapter_Board.kicad_pcb and its schematic CircuitDiagrams/S8000_CPU/S8000_CPU.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the FINCH Adapter Board design in my own project?
Its repository states no licence, so its author keeps all rights: ask OlliL before reusing the design.
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