2 layers
ISA FPGA
robfinch/Cores
Cores ===== RTF's Cores Use at your own risk. Welcome to my galaxy of cores. Contained in the directories are IP cores, source code for digital circuits.
121 parts78
4 layers223.3 × 120.1 mm
ISA FPGA v2
robfinch/Cores78Cores ===== RTF's Cores Use at your own risk. Welcome to my galaxy of cores. Contained in the directories are IP cores, source code for digital circuits.
- Size
- 223.3 × 120.1 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 132
- Nets
- 355
- Pads
- 958
- Tracks, vias
- 0, 0
- Pours
- 8
- Routed
- Not yet
- KiCad
- KiCad 5 (file 20171130)
- Created
- 28 Sep 2013
- Updated
- 12 Feb 2026
Overview
ISA FPGA v2 is an open-source printed circuit board by robfinch, from the robfinch/Cores repository on GitHub. It is a 4-layer board of 223.3 × 120.1 mm with 132 parts on 355 nets.
It is built around the 74LVC245AD, MAX3814CHJ and LM386, with the 74LS573PC, 74LVC06AD and 74LVC138AD among its other parts. Its parts include 57 resistors, 26 capacitors, 21 ICs, 10 connectors and 9 diodes. It belongs with the fPGA and programmable logic boards and the FPGA and CPLD boards of this library.
Main components
8
74LVC245AD
SOIC-20-300mil-40℃~+125℃ 1 1.65V~3.6V 2.9ns@3.3V,50pF 24mA 40uA 74LVC 8 Bidirectional Schmitt trigger Tri-State SOIC-20-300mil Buffers, Drivers, Receivers, Transceivers ROHSNexperiaBuffer/Driver/Transceiver
MAX3814CHJ
TQFP-32(5x5)0℃~+70℃ 1.65Gbps 3.3V TQFP-32(5x5) Interface - Specialized ROHSAnalog DevicesInterface - Specialized
LM386
SOP-80.2% 0℃~+70℃ 4V~12V 4mA 50dB 700mWx1@8Ω Analog voltage gain SOP-8 Audio Amplifiers ROHSGcoreAudio Power OpAmps
74LS573PC
DIP-200℃~+70℃ 10ns 3ns 4.75V~5.25V 74LS 8 D Latch Tri-State DIP-20 Latches ROHSTexas InstrumentsLatches
74LVC06AD
SOP-14-40℃~+125℃ 1.65V~5.5V 3.5ns@5.5V,50pF 40uA 6 74LVC SOP-14 Inverters ROHSNexperiaInverters74LVC138AD
-- Signal Switches, Multiplexers, Decoders ROHSNexperiaSignal Switches, Multiplexers, Decoders74LVC14AD
SOP-14-40℃~+125℃ 1.2V、1.9V、2.2V、2.4V、3.8V 1.65V~5.5V 100mV、300mV、400mV、450mV、550mV、550mV 10uA 3.5ns@5V,15pF 6 74LVC Schmitt trigger SOP-14 Inverters ROHSMDDInverters74LVC573AD
SOIC-20-300mil-40℃~+125℃ 1.4ns 1.65V~3.6V 1.7ns 3.4ns 74LVC 8 D Latch Tri-State SOIC-20-300mil Latches ROHSNexperiaLatches
README
README.mdCores
RTF's Cores Use at your own risk. Welcome to my galaxy of cores. Contained in the directories are IP cores, source code for digital circuits. Also included are documentation, test benches, and software samples.
Parts
132| Qty | Value | Footprint | References |
|---|---|---|---|
| 32 | 200 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R1, R2, R3, R4, R15, R16, R17, R18, R21, R28, R34, R38, R39, R40, R41, R42 +16 |
| 18 | 0.1 | Capacitor_THT:C_Disc_D3.0mm_W1.6mm_P2.50mm | C1, C2, C3, C4, C5, C6, C10, C11, C17, C18, C19, C20, C21, C22, C23, C24 +2 |
| 7 | MAX3814 | Package_QFP:TQFP-32_7x7mm_P0.8mm | U4, U5, U6, U12, U13, U15, U18 |
| 5 | 100 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R35, R36, R37, R51, R52 |
| 4 | 10k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R9, R19, R22, R23 |
| 4 | LED | Diode_THT:D_DO-35_SOD27_P10.16mm_Horizontal | D4, D5, D28, D29 |
| 4 | ZPDxx | Diode_THT:D_DO-35_SOD27_P10.16mm_Horizontal | D2, D13, D14, D15 |
| 3 | 2N3904 | Package_TO_SOT_THT:TO-92_Inline | Q1, Q2, Q3 |
| 3 | 74LVC245 | Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm | U10, U11, U21 |
| 2 | 0.01 | Capacitor_THT:C_Disc_D3.0mm_W1.6mm_P2.50mm | C25, C26 |
| 2 | 1k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R26, R31 |
| 2 | 1k5 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R11, R12 |
| 2 | 470 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R32, R33 |
| 2 | 5k1 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R27, R29 |
| 2 | 74LS573 | Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm | U1, U3 |
| 2 | CONN_2 | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | P2, P8 |
| 2 | CONN_32X2 | Connector_PinSocket_2.54mm:PinSocket_2x32_P2.54mm_Vertical | U7, U8 |
| 2 | CONN_7 | Connector_PinSocket_2.54mm:PinSocket_1x07_P2.54mm_Vertical | P4, P7 |
| 2 | Jumper | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | JP1, JP2 |
| 2 | MINI_DIN_6 | Connector:PS2 | X1, X2 |
| 1 | 0 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R24 |
| 1 | 0.047u | Capacitor_THT:C_Disc_D5.0mm_W2.5mm_P5.00mm | C15 |
| 1 | 0.047u | Capacitor_THT:C_Disc_D3.8mm_W2.6mm_P2.50mm | C12 |
| 1 | 10 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R30 |
| 1 | 100k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R13 |
| 1 | 100u | Capacitor_THT:CP_Radial_D8.0mm_P3.80mm | C14 |
| 1 | 10K | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R50 |
| 1 | 10k | Resistor_THT:R_Array_SIP10 | RR2 |
| 1 | 10k | Potentiometer_THT:Potentiometer_ACP_CA9-V10_Vertical | RV1 |
| 1 | 10u | Capacitor_THT:CP_Radial_D5.0mm_P2.50mm | C13 |
| 1 | 10uF | Capacitor_THT:CP_Radial_D7.5mm_P2.50mm | C9 |
| 1 | 1M | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R25 |
| 1 | 1N750 | Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal | D3 |
| 1 | 220u | Capacitor_THT:CP_Radial_D8.0mm_P3.80mm | C16 |
| 1 | 27k | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R10 |
| 1 | 2k2 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R20 |
| 1 | 4k7 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P7.62mm_Horizontal | R14 |
| 1 | 74LVC06 | Package_SO:SOIC-14_3.9x8.7mm_P1.27mm | U9 |
| 1 | 74LVC138 | Package_SO:SOIC-16W_7.5x10.3mm_P1.27mm | U2 |
| 1 | 74LVC14 | Package_SO:SOIC-14_3.9x8.7mm_P1.27mm | U23 |
| 1 | 74LVC573 | Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm | U20 |
| 1 | AudioJack2 | Connector_Audio:Jack_3.5mm_CUI_SJ1-3533NG_Horizontal | J3 |
| 1 | Bus_ISA_16bit | Connector_PCBEdge:BUS_AT | J1 |
| 1 | CONN_20X2 | Connector_PinHeader_2.54mm:PinHeader_2x20_P2.54mm_Horizontal | U19 |
| 1 | CONN_2X2 | Connector_PinHeader_2.54mm:PinHeader_2x02_P2.54mm_Vertical | P6 |
| 1 | CONN_5X2 | Connector_PinHeader_2.54mm:PinHeader_2x05_P2.54mm_Vertical | P3 |
| 1 | CONN_6 | Connector_PinSocket_2.54mm:PinSocket_1x06_P2.54mm_Vertical | P5 |
| 1 | HDMI_A | Connector_HDMI:HDMI_A_Contact_Technology_HDMI-19APL2_Horizontal | J2 |
| 1 | LM386 | Package_DIP:DIP-8_W7.62mm_Socket | U16 |
| 1 | LM3940 | Package_TO_SOT_THT:LMxx | U14 |
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Questions
How big is the ISA FPGA v2 PCB?
It measures 223.3 × 120.1 mm and has 4 copper layers, 1.6 mm thick.
What parts does the ISA FPGA v2 use?
132 parts, built around the 74LVC245AD, MAX3814CHJ, LM386 and 74LS573PC. 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 ISA FPGA v2 KiCad files?
From the robfinch/Cores repository on GitHub, at the commit this page was made from: the board is ISA/ISA FPGA Board4/ISA_FPGA/ISA_FPGA_v2.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the ISA FPGA v2 design in my own project?
Its repository states no licence, so its author keeps all rights: ask robfinch before reusing the design.