LittleSixteen
About the LittleSixteen PCB
LittleSixteen is an open source PCB design by SukkoPera, published on GitHub under the Custom license license. It is a 2-layer board measuring 389 × 136.2 mm, with 329 components from 117 distinct parts.
Other key parts include the MOS_7360_TED, MOS_8501, 23128_BASIC, 23128_KERNAL and 74HCT02. By type, the board carries 81 capacitors, 59 inductors, 51 resistors, 37 diodes, 35 ICs and 16 connectors.
It belongs with the retro computing designs in this gallery.
From the project
Enhanced Commodore Plus/4 Home Computer
LittleSixteen is an Open Hardware remake of the Commodore 16, 116 and Plus/4 home computers, featuring many improvements over the original design.
The new goal of this project is to allow anyone to build a very significant home computer from the '80s from scratch, only using parts that can be found on the market [^almost]. The design is fully through-hole so no particular soldering skills are required for the assembly. The estimated cost of ALL materials (case and power supply included) for a single complete machine is around 250-300€.
Main components on the LittleSixteen
LittleSixteen bill of materials (BOM)
329 components, 117 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | MOS_7360_TED | DIP-48_W15.24mm_Socket_LongPads | U1 |
| 1 | MOS_8501 | DIP-40_W15.24mm_Socket_LongPads | U2 |
| 1 | 23128_BASIC | DIP-28_W15.24mm_Socket_LongPads | U3 |
| 1 | 23128_KERNAL | DIP-28_W15.24mm_Socket_LongPads | U4 |
| 2 | 74HCT02 | DIP-14_W7.62mm_Socket_LongPads | U5, U12 |
| 1 | 74HCT573 | DIP-20_W7.62mm_Socket_LongPads | U6 |
| 1 | L7812 | TO-220-3_Vertical | U7 |
| 1 | 74LS06 | DIP-14_W7.62mm_Socket_LongPads | U9 |
| 1 | NE555P | DIP-8_W7.62mm_Socket_LongPads | U10 |
| 2 | MOS_6529 | DIP-20_W7.62mm_Socket_LongPads | U13, U22 |
| 2 | 74HCT139 | DIP-16_W7.62mm_Socket_LongPads | U14, U17 |
| 1 | 74HCT175 | DIP-16_W7.62mm_Socket_LongPads | U15 |
| 1 | 74HCT244 | DIP-20_W7.62mm_Socket_LongPads | U18 |
| 3 | GAL16V8 | DIP-20_W7.62mm_Socket_LongPads | U19, U26, U28 |
| 1 | 74HCT273 | DIP-20_W7.62mm_Socket_LongPads | U20 |
| 1 | 74HCT04 | DIP-14_W7.62mm_Socket_LongPads | U21 |
| 1 | MOS_6551_ACIA | DIP-28_W15.24mm_Socket_LongPads | U23 |
| 1 | MOS_8580 | DIP-28_W15.24mm_Socket_LongPads | U24 |
| 1 | 74HCT74 | DIP-14_W7.62mm_Socket_LongPads | U25 |
| 2 | 74HCT245 | DIP-20_W7.62mm_Socket_LongPads | U27, U29 |
Show 97 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | AS6C4008 | DIP-32_W15.24mm_Socket_LongPads | U30 |
| 1 | 74HCT08 | DIP-14_W7.62mm_Socket_LongPads | U90 |
| 5 | DT1042 | TSOP-6_1.65x3.05mm_P0.95mm | U91, U92, U93, U94, U95 |
| 1 | MOS_6510 | DIP-40_W15.24mm_Socket_LongPads | U102 |
| 1 | 74LS654 | DIP-24_W7.62mm_Socket_LongPads | U122 |
| 7 | 2SC1815 | TO-92_Inline_Wide | Q1, Q2, Q3, Q6, Q81, Q82, Q83 |
| 1 | 2SD880 | TO-220-3_Horizontal_TabUp | Q5 |
| 1 | OSC_DIP14 | Oscillator_DIP-8+14 | X1 |
| 1 | 17.734475M | Crystal_HC49-U_Horizontal_1EP_style2 | Y1 |
| 1 | 1.8432M | Crystal_HC49-U_Vertical | Y2 |
| 1 | EXPANSION_CONNECTOR | 50Pin_Edge_Connector | CN1 |
| 1 | KEYBOARD_HEADER | PinHeader_1x20_P2.54mm_NoPin2 | CN2 |
| 1 | JOY1 | DB_9M | CN4 |
| 1 | JOY2 | DB_9M | CN5 |
| 1 | AUDIO_VIDEO | DIN-8_DS_8_102_OR_102B | CN6 |
| 1 | SERIAL_BUS | DIN-6_DS_6_102_OR_102B | CN7 |
| 1 | POWER_INPUT | DIN-7_DS_7_102_OR_102B | CN8 |
| 1 | LED_CONNECTOR | PinHeader_1x03_P2.54mm_Vertical | CN9 |
| 1 | USERPORT | Plus4_UserPort | CN10 |
| 1 | CONN_SID_OUTPUT | PinHeader_1x02_P2.54mm_Vertical | CN11 |
| 1 | CONN_SID_INPUT | PinHeader_1x02_P2.54mm_Vertical | CN12 |
| 1 | CONN_TED_OUTPUT | PinHeader_1x02_P2.54mm_Vertical | CN13 |
| 1 | CONN_JOY3 | PinHeader_2x05_P2.54mm_Vertical | CN14 |
| 1 | CONN_IEC_INT | PinHeader_1x07_P2.54mm_Vertical | CN15 |
| 1 | CONN_TAPE_INT | PinHeader_2x03_P2.54mm_Vertical | CN16 |
| 1 | C64_STYLE_CASSETTE | C64-Cassette-Port-Male | CN93 |
| 1 | NTE5304 | Diode_Bridge_Round_D9.8mm | CR100 |
| 1 | 40p | VariCap | CT1 |
| 3 | 270p | EMI_Filter | EM3, EM4, EM5 |
| 3 | 250m | Fuse_Bourns | F1, F2, F5 |
| 4 | 400m | Fuse_Bourns | F3, F4, F6, F7 |
| 1 | 1.5A | Fuseholder_Cylinder-5x20mm_Stelvio-Kontek_PTF78_Horizontal_Open | F100 |
| 1 | SW_RAMSIZE | PinHeader_1x03_P2.54mm_Vertical | JP4 |
| 1 | JMP_J1_POW5 | PinHeader_1x02_P2.54mm_Vertical | JP9 |
| 1 | JMP_J2_POW5 | PinHeader_1x02_P2.54mm_Vertical | JP10 |
| 1 | SW_RESET | PinHeader_1x02_P2.54mm_Vertical | JP11 |
| 1 | JMP_TPSENSE | PinHeader_1x03_P2.54mm_Vertical | JP12 |
| 1 | SW_ROM_BANK | PinHeader_1x03_P2.54mm_Vertical | JP13 |
| 1 | SW_DIGIFIX | PinHeader_1x02_P2.54mm_Vertical | JP14 |
| 1 | SW_JOYSWAP | PinHeader_1x02_P2.54mm_Vertical | JP17 |
| 1 | CM4545Z131B-10 | CM4545Z131B-10 | LF100 |
| 1 | 1k | R_Array_SIP6 | RP1 |
| 2 | 3.3k | R_Array_SIP6 | RP2, RP3 |
| 1 | 3.3k | R_Array_SIP9 | RP4 |
| 2 | 4.7k | R_Array_SIP9 | RP5, RP8 |
| 1 | 100 | R_Array_SIP10 | RP6 |
| 1 | 10k | R_Array_SIP9 | RP7 |
| 2 | 100 | R_Array_SIP12 | RP90, RP91 |
| 1 | 1k | Potentiometer_Bourns_3296W_Vertical | RV1 |
| 1 | 220 | Potentiometer_Bourns_3296W_Vertical | RV2 |
| 1 | 10k | Potentiometer_Bourns_3296W_Vertical | RV3 |
| 1 | 1M | Potentiometer_Bourns_3296W_Vertical | RV4 |
| 1 | SW_POWER | C64_PowerSwitch | SW1 |
| 1 | PCBWAY_LOGO | pcbway | V1 |
| 1 | CC BY-NC-SA 4.0 | cc_by_nc_sa | V2 |
| 34 | 1n4148 | D_DO-35_SOD27_P5.08mm_Vertical_KathodeUp | D1, D2, D3, D4, D5, D6, D7, D8 +26 |
| 1 | 6.8V | D_DO-35_SOD27_P5.08mm_Vertical_KathodeUp_Zener | D13 |
| 2 | 1n4001 | D_DO-41_SOD81_P5.08mm_Vertical_KathodeUp | D87, D88 |
| 51 | FERRITE | EMI_Filter | FB1, FB2, FB3, FB4, FB5, FB12, FB14, FB15 +43 |
| 3 | DO NOT MOUNT | EMI_Filter | FB38, FB39, FB40 |
| 4 | FERRITE | L_Radial_D6.0mm_P4.00mm | L1, L2, L3, L80 |
| 1 | 10u | L_Axial_L7.0mm_D3.3mm_P12.70mm_Horizontal_Fastron_MICC | L81 |
| 10 | 10u/25V | CP_Radial_D5.0mm_P2.00mm | C3, C4, C16, C18, C19, C31, C52, C62 +2 |
| 38 | 100n | C_Disc_D8.0mm_W2.5mm_P5.00mm | C5, C6, C7, C8, C9, C11, C21, C22 +30 |
| 1 | 22p | C_Disc_D8.0mm_W2.5mm_P5.00mm | C12 |
| 2 | 220p | C_Disc_D8.0mm_W2.5mm_P5.00mm | C13, C86 |
| 2 | 150p | C_Disc_D8.0mm_W2.5mm_P5.00mm | C14, C82 |
| 2 | 10n | C_Disc_D8.0mm_W2.5mm_P5.00mm | C15, C20 |
| 1 | 1u/16V | CP_Radial_D5.0mm_P2.00mm | C17 |
| 5 | 470p | C_Disc_D8.0mm_W2.5mm_P5.00mm | C23, C24, C25, C50, C57 |
| 2 | 100p | C_Disc_D8.0mm_W2.5mm_P5.00mm | C32, C84 |
| 2 | 22n | C_Disc_D8.0mm_W2.5mm_P5.00mm | C45, C46 |
| 2 | 2.2n | C_Disc_D8.0mm_W2.5mm_P5.00mm | C47, C48 |
| 1 | 1n | C_Disc_D8.0mm_W2.5mm_P5.00mm | C49 |
| 6 | 470u/25V | CP_Radial_D8.0mm_P3.50mm | C60, C95, C101, C110, C111, C113 |
| 2 | 330p | C_Disc_D8.0mm_W2.5mm_P5.00mm | C81, C87 |
| 4 | 220n/25V | C_Disc_D8.0mm_W2.5mm_P5.00mm | C103, C104, C105, C106 |
| 1 | 2200u/25V | Axial_Cap_Dual | C107 |
| 8 | 10k | R_Axial_DIN0207_L6.3mm_D2.5mm_P5.08mm_Vertical | R1, R23, R33, R41, R42, R97, R98, R99 |
| 1 | 4.7k | R_Axial_DIN0207_L6.3mm_D2.5mm_P5.08mm_Vertical | R2 |
| 4 | 470 | R_Axial_DIN0207_L6.3mm_D2.5mm_P5.08mm_Vertical | R3, R7, R13, R14 |
| 2 | 220 | R_Axial_DIN0207_L6.3mm_D2.5mm_P5.08mm_Vertical | R4, R37 |
| 1 | 18k | R_Axial_DIN0207_L6.3mm_D2.5mm_P5.08mm_Vertical | R5 |
| 1 | 1.5k | R_Axial_DIN0207_L6.3mm_D2.5mm_P5.08mm_Vertical | R6 |
| 8 | 1k | R_Axial_DIN0207_L6.3mm_D2.5mm_P5.08mm_Vertical | R8, R24, R28, R32, R34, R43, R82, R86 |
| 1 | 12k | R_Axial_DIN0207_L6.3mm_D2.5mm_P5.08mm_Vertical | R9 |
| 4 | 100k | R_Axial_DIN0207_L6.3mm_D2.5mm_P5.08mm_Vertical | R11, R21, R25, R36 |
| 4 | 3.3k | R_Axial_DIN0207_L6.3mm_D2.5mm_P5.08mm_Vertical | R12, R19, R81, R93 |
| 1 | 47k | R_Axial_DIN0207_L6.3mm_D2.5mm_P5.08mm_Vertical | R20 |
| 2 | 240 | R_Axial_DIN0207_L6.3mm_D2.5mm_P5.08mm_Vertical | R26, R27 |
| 4 | 100 | R_Axial_DIN0207_L6.3mm_D2.5mm_P5.08mm_Vertical | R29, R30, R31, R89 |
| 1 | 180k | R_Axial_DIN0207_L6.3mm_D2.5mm_P5.08mm_Vertical | R35 |
| 2 | 5.6k | R_Axial_DIN0207_L6.3mm_D2.5mm_P5.08mm_Vertical | R80, R83 |
| 1 | 33 | R_Axial_DIN0207_L6.3mm_D2.5mm_P5.08mm_Vertical | R84 |
| 4 | 150 | R_Axial_DIN0207_L6.3mm_D2.5mm_P5.08mm_Vertical | R85, R87, R88, R90 |
| 1 | 10 2.5W | R_Axial_DIN0414_L11.9mm_D4.5mm_P5.08mm_Vertical | R96 |
| 1 | 330 | R_Axial_DIN0207_L6.3mm_D2.5mm_P5.08mm_Vertical | R102 |
LittleSixteen design files
The KiCad project lives in the SukkoPera/LittleSixteen repository on GitHub; these links point at the commit this page was built from.
- LayoutLittleSixteen.kicad_pcb
LittleSixteen: common questions
How big is the LittleSixteen PCB?
The LittleSixteen measures 389 × 136.2 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the LittleSixteen?
329 components, from 117 distinct parts. The full bill of materials is listed on this page.
Where can I download the LittleSixteen design files?
From the SukkoPera/LittleSixteen repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the LittleSixteen design in my own project?
It is published under Custom license, which limits how it may be reused; read the license before building on it.
Similar boards
OpenTendo
Redherring32
196.3 × 118.7 mm93 parts2LTAPR-OHL-1.0850
MCL86jr
MicroCoreLabs
56.1 × 57.1 mm66 parts4LNo license532
24pin flex interposer
Wren6991
29 × 32 mm3 parts2LNo license508
Sram dev board
50 × 50 mm12 parts2LNo license508
TRS-80 Color Computer 3
baldengineer
280 × 155.3 mm204 parts2LCC-BY-4.0442
Commodore Plus 4
284.7 × 158.9 mm212 parts2LCC-BY-4.0442