TTL 6510 Computer
StefansAI·TTL-6510-Computer·KiCAD/TTL 6510 Computer.kicad_pcb
About the TTL 6510 Computer PCB
TTL 6510 Computer is an open source PCB design by StefansAI, published on GitHub. It is a 2-layer board measuring 368.3 × 215.9 mm, with 330 components from 82 distinct parts.
Other key parts include the 74HCT04, LM555, 74HCT14, 74HCT74 and 74HCT86. By type, the board carries 163 capacitors, 106 ICs, 28 connectors, 23 resistors, 4 jumpers and 3 switches.
It belongs with the displays & leds and retro computing designs in this gallery.
From the project
Yet another CPU made from TTL chips

Main components on the TTL 6510 Computer
TTL 6510 Computer bill of materials (BOM)
330 components, 82 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | 74HCT04 | DIP-14_W7.62mm_Socket | U1, U57 |
| 1 | LM555 | DIP-8_W7.62mm | U2 |
| 1 | 74HCT14 | DIP-14_W7.62mm_Socket | U3 |
| 14 | 74HCT74 | DIP-14_W7.62mm_Socket | U4, U9, U11, U12, U59, U63, U64, U77 +6 |
| 2 | 74HCT86 | DIP-14_W7.62mm_Socket | U5, U83 |
| 2 | 74HCT02 | DIP-14_W7.62mm_Socket | U6, U72 |
| 2 | 74HCT73 | DIP-14_W7.62mm_Socket | U7, U8 |
| 2 | 74HCT11 | DIP-14_W7.62mm_Socket | U10, U45 |
| 11 | 74HCT541 | DIP-20_W7.62mm_Socket | U13, U15, U17, U19, U25, U27, U33, U73 +3 |
| 8 | 74HCT161 | DIP-16_W7.62mm_Socket | U14, U16, U18, U20, U22, U24, U26, U28 |
| 6 | 74HCT08 | DIP-14_W7.62mm_Socket | U21, U49, U50, U52, U58, U82 |
| 1 | 74HCT573 | DIP-20_W7.62mm_Socket | U23 |
| 14 | 74HCT574 | DIP-20_W7.62mm_Socket | U29, U31, U32, U34, U36, U37, U39, U42 +6 |
| 4 | 74HCT32 | DIP-14_W7.62mm_Socket | U30, U60, U76, U88 |
| 1 | 74HCT245 | DIP-20_W7.62mm_Socket | U35 |
| 1 | 74HCT193 | DIP-16_W7.62mm_Socket | U38 |
| 3 | SST39SF010 | DIP-32_W15.24mm_Socket | U40, U41, U105 |
| 1 | GAL22V10 | DIP-24_W7.62mm_Socket | U43 |
| 2 | 74HCT21 | DIP-14_W7.62mm_Socket | U44, U51 |
| 7 | 74HCT138 | DIP-16_W7.62mm_Socket | U46, U47, U48, U54, U55, U56, U80 |
Show 62 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 2 | 74HCT00 | DIP-14_W7.62mm_Socket | U53, U85 |
| 3 | 74HCT27 | DIP-14_W7.62mm_Socket | U61, U71, U93 |
| 1 | 74HCT173 | DIP-16_W7.62mm_Socket | U62 |
| 2 | 74LS181 | DIP-24_W15.24mm_Socket | U69, U70 |
| 2 | 74HCT153 | DIP-16_W7.62mm_Socket | U74, U75 |
| 1 | 74HCT10 | DIP-14_W7.62mm_Socket | U86 |
| 3 | 74HCT125 | DIP-14_W7.62mm_Socket | U87, U98, U99 |
| 1 | 74HCT151 | DIP-16_W7.62mm_Socket | U92 |
| 1 | 74HCT30 | DIP-14_W7.62mm_Socket | U94 |
| 1 | 74HCT139 | DIP-16_W7.62mm_Socket | U97 |
| 2 | HM62256BLP | DIP-28_W15.24mm | U102, U104 |
| 1 | GAL16V8 | DIP-20_W7.62mm_Socket | U103 |
| 1 | MC6850 | DIP-24_W15.24mm_Socket | U106 |
| 1 | 4MHZ/30PF 4MHz/30pF | Crystal_HC49-U_Horizontal | Y1 |
| 1 | 1.8432MHZ/30PF 1.8432MHz/30pF | Crystal_HC49-U_Horizontal | Y2 |
| 1 | PCL | PinHeader_1x11_P2.54mm_Vertical | J1 |
| 1 | PCH | PinHeader_1x11_P2.54mm_Vertical | J2 |
| 1 | AL | PinHeader_1x11_P2.54mm_Vertical | J3 |
| 1 | ARL | PinHeader_1x11_P2.54mm_Vertical | J4 |
| 1 | ARH | PinHeader_1x11_P2.54mm_Vertical | J5 |
| 1 | SP | PinHeader_1x11_P2.54mm_Vertical | J6 |
| 1 | SP* | PinHeader_1x11_P2.54mm_Vertical | J7 |
| 1 | A | PinHeader_1x11_P2.54mm_Vertical | J8 |
| 1 | X | PinHeader_1x11_P2.54mm_Vertical | J9 |
| 1 | Y | PinHeader_1x11_P2.54mm_Vertical | J10 |
| 1 | MC-STEP | PinHeader_1x11_P2.54mm_Vertical | J11 |
| 1 | IR | PinHeader_1x11_P2.54mm_Vertical | J12 |
| 1 | Cond | PinHeader_1x06_P2.54mm_Vertical | J13 |
| 1 | MCL | PinHeader_1x11_P2.54mm_Vertical | J14 |
| 1 | ALU_H | PinHeader_1x04_P2.54mm_Vertical | J15 |
| 1 | MCH | PinHeader_1x11_P2.54mm_Vertical | J16 |
| 1 | ALU_A | PinHeader_1x11_P2.54mm_Vertical | J17 |
| 1 | ALU_B | PinHeader_1x11_P2.54mm_Vertical | J18 |
| 1 | ALU_OUT | PinHeader_1x11_P2.54mm_Vertical | J19 |
| 1 | ALU_FLGS | PinHeader_1x06_P2.54mm_Vertical | J20 |
| 1 | SR | PinHeader_1x11_P2.54mm_Vertical | J21 |
| 1 | P | PinHeader_1x11_P2.54mm_Vertical | J22 |
| 1 | ABL | PinHeader_1x11_P2.54mm_Vertical | J23 |
| 1 | ABH | PinHeader_1x11_P2.54mm_Vertical | J24 |
| 1 | DB | PinHeader_1x11_P2.54mm_Vertical | J25 |
| 1 | USB_C_Power | USB_C_Receptacle_HRO_TYPE-C-31-M-17 | J26 |
| 1 | Expansion | PinHeader_2x32_P2.54mm_Horizontal | J27 |
| 1 | UART | PinHeader_1x06_P2.54mm_Vertical | J28 |
| 1 | ClockSel | PinHeader_1x03_P2.54mm_Vertical | JP1 |
| 1 | IPHI2_ACTIVE iPHI2_ACTIVE | PinHeader_1x02_P2.54mm_Vertical | JP2 |
| 1 | PORT_EN | PinHeader_1x02_P2.54mm_Vertical | JP3 |
| 1 | RAM_ONLY | PinHeader_1x02_P2.54mm_Vertical | JP4 |
| 1 | 1M | Potentiometer_ACP_CA6-H2,5_Horizontal | RV1 |
| 1 | STEP | SW_PUSH_6mm | SW1 |
| 1 | RESET | SW_PUSH_6mm | SW2 |
| 1 | SW_ROTARY_SS-10-16 SW_Rotary_SS-10-16 | RotaryEncoder_SS_10_16NP_LE | SW3 |
| 1 | 0.01U 0.01u | C_Disc_D4.3mm_W1.9mm_P5.00mm | C1 |
| 4 | 47P 22p | C_Disc_D5.0mm_W2.5mm_P5.00mm | C2, C5, C160, C161 |
| 2 | 0.1U 0.1u | C_Disc_D7.5mm_W2.5mm_P5.00mm | C3, C4 |
| 50 | 4.7U 4.7u | C_Disc_D7.5mm_W2.5mm_P7.62mm_pol | C6, C7, C8, C9, C10, C26, C29, C30 +42 |
| 105 | 0.1U 0.1u | C_Disc_D7.5mm_W2.5mm_P7.62mm | C11, C12, C13, C14, C15, C16, C17, C18 +97 |
| 1 | 100P 100p | C_Disc_D7.5mm_W2.5mm_P7.62mm | C122 |
| 15 | 1k | R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R1, R2, R4, R5, R6, R8, R9, R10 +7 |
| 2 | 1M | R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R3, R17 |
| 1 | 10K 10k | R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R7 |
| 1 | 2k | R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R14 |
| 4 | 8X1K 8x1k | R_Array_SIP9 | RN1, RN2, RN3, RN4 |
TTL 6510 Computer design files
The KiCad project lives in the StefansAI/TTL-6510-Computer repository on GitHub; these links point at the commit this page was built from.
TTL 6510 Computer: common questions
How big is the TTL 6510 Computer PCB?
The TTL 6510 Computer measures 368.3 × 215.9 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the TTL 6510 Computer?
330 components, from 82 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the TTL 6510 Computer design files?
From the StefansAI/TTL-6510-Computer repository on GitHub, which has the KiCad layout, the schematic and the BOM; the links under Design files point to each one.
Can I use the TTL 6510 Computer design in my own project?
The repository has no license, so all rights stay with StefansAI. Use it as a reference, and ask the author before reusing the design.