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Fire-24-f

piersfinlayson·one-rom·hardware/pcb/verified/fire-24-f/fire-24-f.kicad_pcb

Top view of the Fire-24-f PCB
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Fire-24-f is an open source RP2040/RP2350 PCB design by piersfinlayson: a 2-layer, 18.3 × 31.3 mm board with 44 components (20 distinct parts). It is built around the RP2350_60QFN, 2332/2364 SOCKET, AP2112K-3.3, USBLC6-2P6. Filed under retro computing.

The most flexible and powerful ROM replacement for retro systems - using a Raspberry Pi RP2350 microcontroller.

A second USB-C variant, retaining the RP2354A MCU.

Changes from fire-24-e: - Adds a neo-pixel LED, sharing GPIO 29 with the status LED. - SEL pins have been swapped around for consistency with the latest 28, 32 and 40 pin designs. The two right-most SEL pins are now ADC (non-5V tolerant) pins, with the othe two being 5V tolerant. - A fraction of a mm narrower and shorter.

Built around

RP2350_60QFN2332/2364 SOCKETAP2112K-3.3USBLC6-2P6

Parts list

44 components, 20 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
RP2350_60QFN
U1
1
2332/2364 SOCKET
U2
1
AP2112K-3.3
U3
1
USBLC6-2P6
U4
1
CRYSTAL_GND24
Crystal_GND24
Y1
2
Conn_01x02_Pin
J1, J3
1
Conn_02x04_Odd_Even
J2
1
USB_C_RECEPTACLE_USB2.0_16P
USB_C_Receptacle_USB2.0_16P
J4
1
C25503345
LED_Small
D1
2
1N5819WS
D2, D3
1
XL-1010RGBC-WS2812B
D4
1
3.3U
3.3u
L1
5
4.7UF
4.7uF
C1, C2, C7, C13, C15
10
0.1UF
0.1uF
C3, C4, C5, C6, C8, C9, C10, C11 +2
2
4.7UF
4.7uF
C16, C17
2
15PF
15pF
C18, C19
4
10K
R1, R3, R7, R8
4
1K
R2, R5, R6, R11
1
33R
R4
2
5K1
R9, R10

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