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Fire-40-b

piersfinlayson·one-rom·hardware/pcb/verified/fire-40-b/fire-40-b.kicad_pcb

Top view of the Fire-40-b PCB
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Fire-40-b is an open source RP2040/RP2350 PCB design by piersfinlayson: a 2-layer, 18.8 × 51.9 mm board with 49 components (22 distinct parts). It is built around the RP2354B, AP2112K-3.3, USBLC6-2P6, W25Q16JVSS. Filed under retro computing.

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

A variant of the 40 pin version. Adds a neo-pixel LED..

Has components on both sides of the board.

Changes from fire-40-a: - Adds a neo-pixel LED, GPIO 44, alongside the status LED at GPIO 45 (which changed for consistency with other RP235XB based boards). - Address and CS pins have been laid out differently to allow more efficient use of flash for some image types.

Built around

RP2354BAP2112K-3.3USBLC6-2P6W25Q16JVSS

Parts list

49 components, 22 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
RP2354B
U1
1
Conn_02x20_Counter_Clockwise
U2
1
AP2112K-3.3
U3
1
USBLC6-2P6
U4
1
W25Q16JVSS
U5
1
CRYSTAL_GND24
Crystal_GND24
Y1
1
USB_C_RECEPTACLE_USB2.0_16P
USB_C_Receptacle_USB2.0_16P
J1
1
Conn_02x04_Odd_Even
J2
1
Conn_01x02_Pin
J3
1
C2286
LED_Small
D1
2
1N5819WS
D2, D3
1
XL-1010RGBC-WS2812B
D4
1
3.3U
3.3u
L1
7
4.7UF
4.7uF
C1, C2, C3, C7, C13, C15, C23
12
0.1UF
0.1uF
C4, C5, C6, C8, C9, C10, C11, C12 +4
2
4.7UF
4.7uF
C16, C17
2
15PF
15pF
C18, C19
4
10K
R1, R3, R7, R8
4
1K
R2, R5, R6, R13
1
33R
R4
Show 2 more
QtyPartRefs
2
5K1
R9, R10
1
C17168
0R
R12

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