HardLabs

Fire-32-a

piersfinlayson·one-rom·hardware/pcb/verified/fire-32-a/kicad/fire-32-a.kicad_pcb

Top view of the Fire-32-a PCB
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Fire-32-a is an open source RP2040/RP2350 PCB design by piersfinlayson: a 2-layer, 18.9 × 41.7 mm board with 47 components (23 distinct parts). It is built around the RP2350_60QFN, 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.

Verified. Supports 27C010, 27C020, 27C040, 27C301, SST39SF010 and SST39SF020 (not SST39SF040).

Based on fire-40-a, this design is a prototype to add 32 pin One ROM support.

Built around

RP2350_60QFNAP2112K-3.3USBLC6-2P6W25Q16JVSS

Parts list

47 components, 23 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
RP2350_60QFN
RP2354B
U1
1
Conn_02x16_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
2
Conn_01x02_Pin
J3, J4
1
C2286
LED_Small
D1
2
IN5819WS
1N5819WS
D2, D3
1
3.3U
3.3u
L1
6
4.7UF
4.7uF
C1, C2, C3, C7, C13, C15
9
0.1UF
0.1uF
C4, C5, C6, C8, C9, C10, C11, C12 +1
2
4.7UF
4.7uF
C16, C17
2
15PF
15pF
C18, C19
3
0.1uF
C20, C21, C22
1
10K
R1
3
1K
R2, R5, R6
3
10K
R3, R7, R8
Show 3 more
QtyPartRefs
1
33R
R4
2
5K1
R9, R10
1
0R
R12

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