Alice 3 IO board
About the Alice 3 IO board
Alice 3 IO board is an open source PCB design by lkesteloot, published on GitHub under the Apache-2.0 license. It is a 2-layer board measuring 90.2 × 83.8 mm, with 22 components from 12 distinct parts.
Other key parts include the MiniM4-D40, LEVELCONVERTER, Alice_3_bus, DFROBOT_FTDI_BASIC and LM2937-3.3. By type, the board carries 8 ICs, 7 resistors, 3 LEDs, 2 capacitors, 1 crystal and 1 connector.
From the project
Website documenting a hardware project from the 1990s.
This is the third model of the Alice machine. It runs a silicon Z80 with two co-processors: an ARM for keyboard, disk, and serial port, and a Propeller for video.
The 80MHz Propeller has 48K of internal RAM, drives VGA and the 5-pin Aux connector (intended for audio but wired generically to 3 Propeller pins) and thus provides opportunities for video and other experimentation.
Main components on the Alice 3 IO board
Alice 3 IO board bill of materials (BOM)
22 components, 12 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | MiniM4-D40 | DIP-40_W15.24mm | U1 |
| 4 | LEVELCONVERTER | LEVELCONV | U2, U3, U4, U5 |
| 1 | Alice_3_bus | Pin_Header_Straight_2x10 | U6 |
| 1 | DFROBOT_FTDI_BASIC | FTDIBASIC | U7 |
| 1 | LM2937-3.3 | TO-220 | U8 |
| 1 | MINI_DIN_6 | Mini_din6 | X1 |
| 1 | SD_Card | SD_Card_Receptacle | CON1 |
| 3 | LED | LED-5MM | HEART1, INFO1, PANIC1 |
| 1 | 22µF | C_Radial_D5_L11_P2 | C1 |
| 1 | 470µF | C_Radial_D13_L25_P5 | C2 |
| 4 | 68K | Resistor_Horizontal_RM10mm | R0, R1, R2, R3 |
| 3 | 220 | Resistor_Horizontal_RM10mm | R4, R5, R6 |
Alice 3 IO board design files
The KiCad project lives in the lkesteloot/alice repository on GitHub; these links point at the commit this page was built from.
Alice 3 IO board: common questions
How big is the Alice 3 IO board?
The Alice 3 IO board measures 90.2 × 83.8 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the Alice 3 IO board?
22 components, from 12 distinct parts. The full bill of materials is listed on this page.
Where can I download the Alice 3 IO board design files?
From the lkesteloot/alice repository on GitHub, which has the KiCad layout; the links under Design files point to each one.
Can I use the Alice 3 IO board design in my own project?
Yes, under the terms of its Apache-2.0 license, which lkesteloot chose for the repository.
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