4 layers62.8 × 61.7 mm
2 layers18.3 × 53.8 mm
Pico400
going-digital/A600ROM2Flash ROM Kickstart replacement for the Amiga A600
- Size
- 18.3 × 53.8 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 35
- Nets
- 80
- Pads
- 239
- Tracks, vias
- 462, 36
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 2 Aug 2025
- Updated
- 17 Dec 2025
Overview
Pico400 is an open-source printed circuit board by going-digital, from the going-digital/A600ROM repository on GitHub. It is a 2-layer board of 18.3 × 53.8 mm with 35 parts on 80 nets, routed with 462 tracks and 36 vias.
It is built around the RP2354B, AP2112K-3.3 and BAT54C, with the SM03B-SRSS-TB among its other parts. Its parts include 16 capacitors, 8 resistors, 4 connectors, 2 ICs and 2 switches. It belongs with the RP2350 boards of this library.
Main components
4
RP2354B
QFN-80-EP(10x10)-20℃~+85℃ 12bit 150MHz 2MB 32 Bit 48 520KB ARM Cortex-M33 Built-in+External External pin reset (NRST)、True random number generator (TRNG) OTP QFN-80-EP(10x10) Microcontrollers (MCU/MPU/SOC) ROHSRaspberry PiMicrocontrollers (MCU/MPU/SOC)
AP2112K-3.3
SOT253.3V 600mA CMOS Low Dropout Linear Regulator with EnableDiodes IncorporatedUncategorised
BAT54C
SOT-231 Pair Common Cathode 200mA 2uA@25V 30V 600mA 800mV@100mA SOT-23 Schottky Diodes ROHSNexperiaSchottky Diodes
SM03B-SRSS-TB
Header SR 1.0 SMT side entry, 1mm pitchJSTUncategorised
Parts
35| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | 100n | Capacitor_SMD:C_0402_1005Metric | C1, C2, C4, C5, C6, C7, C8, C9 |
| 6 | 4u7 | Capacitor_SMD:C_0402_1005Metric | C3, C10, C11, C12, C15, C16 |
| 3 | 1k | Resistor_SMD:R_0402_1005Metric | R2, R4, R5 |
| 2 | 15p | Capacitor_SMD:C_0402_1005Metric | C13, C14 |
| 2 | 27R | Resistor_SMD:R_0402_1005Metric | R3, R8 |
| 2 | 5k1 | Resistor_SMD:R_0402_1005Metric | R6, R7 |
| 2 | Conn_01x20_Pin | Connector_PinHeader_2.54mm:PinHeader_1x20_P2.54mm_Vertical | J3, J4 |
| 2 | SW_Push | Button_Switch_SMD:SW_Tactile_SPST_NO_Straight_CK_PTS636Sx25SMTRLFS | SW1, SW2 |
| 1 | 12MHz | Crystal:Crystal_SMD_0603-4Pin_6.0x3.5mm | Y1 |
| 1 | 33 | Resistor_SMD:R_0402_1005Metric | R1 |
| 1 | 3u3 | Inductor_SMD:L_0805_2012Metric | L3 |
| 1 | AP2112K-3.3 | Package_TO_SOT_SMD:SOT-23-5 | U4 |
| 1 | BAT54C | Package_TO_SOT_SMD:SOT-23 | D1 |
| 1 | RP2354B | rpi-lib-kicad-rp235x:QFN-80-1EP_10x10mm_P0.4mm_EP3.4x3.4mm_ThermalVias | U1 |
| 1 | SM03B-SRSS-TB | Connector_JST:JST_SH_SM03B-SRSS-TB_1x03-1MP_P1.00mm_Horizontal | J2 |
| 1 | USB_C_Receptacle_USB2.0_16P | Connector_USB:USB_C_Receptacle_HCTL_HC-TYPE-C-16P-01A | J1 |
Questions
How big is the Pico400 PCB?
It measures 18.3 × 53.8 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Pico400 use?
35 parts, built around the RP2354B, AP2112K-3.3, BAT54C and SM03B-SRSS-TB. 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 Pico400 KiCad files?
From the going-digital/A600ROM repository on GitHub, at the commit this page was made from: the board is hardware/pico400.kicad_pcb and its schematic hardware/pico400.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Pico400 design in my own project?
Its repository states no licence, so its author keeps all rights: ask going-digital before reusing the design.
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