4 layers337.6 × 105.7 mm
ISA CGA
hkzlab/CGA_Redux
The Color Graphics Adapter Redux board is a more or less faithful clone of the original IBM CGA, based on the original schematics
170 parts56
2 layers160 × 100 mm
ECB SCSI-1.0-001
RichCini/ECB_SCSISimple 8-bit SCSI single-ended interface for Z80 platform computers.
- Size
- 160 × 100 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 40
- Nets
- 200
- Pads
- 499
- Tracks, vias
- 1,263, 25
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 13 Apr 2023
- Updated
- 13 Apr 2023
Overview
ECB SCSI-1.0-001 is an open-source printed circuit board by RichCini, from the RichCini/ECB_SCSI repository on GitHub. It is a 2-layer board of 160 × 100 mm with 40 parts on 200 nets, routed with 1,263 tracks and 25 vias.
It is built around the 74LS245SC, 74LS00SC and 74LS32SC, with the 74LS74PC among its other parts. Its parts include 14 capacitors, 11 ICs, 6 connectors, 2 switches and 1 diode. It belongs with the retro computing and games boards of this library.
Main components
474LS245SC
-0℃~+70℃ 12ns@5V,45pF 15mA 24mA 4.75V~5.25V 74LS 8 Bidirectional Output enable Schmitt trigger Tri-State - Buffers, Drivers, Receivers, Transceivers ROHSTexas InstrumentsBuffers, Drivers, Receivers, Transceivers
74LS00SC
-0℃~+70℃ 15ns@5V,50pF 2 2.7V 2V 4 4.75V~5.25V 400uA 500mV 74LS 800mV 8mA NAND Gate - Logic Gates ROHSTexas InstrumentsLogic Gates
74LS32SC
-- Logic Gates ROHSTexas InstrumentsLogic Gates
74LS74PC
DIP-140ns 0℃~+70℃ 1 2 20MHz 3.5pF 35ns@5V,50pF 4.5ns 4.75V~5.25V 400uA 74LS Series 8mA 8mA Asynchronous Complementary D-Type Rising Edge Set and Reset DIP-14 Flip FlopsTexas InstrumentsFlip Flops
Parts
40| Qty | Value | Footprint | References |
|---|---|---|---|
| 11 | 0.1uF | Capacitor_THT:C_Disc_D4.3mm_W1.9mm_P5.00mm | C202, C203, C204, C205, C206, C207, C208, C209, C210, C211, C212 |
| 3 | 74LS244 | Package_DIP:DIP-20_W7.62mm_Socket | U301, U302, U501 |
| 2 | 10uF | Capacitor_THT:CP_Radial_D4.0mm_P1.50mm | C213, C214 |
| 2 | 220Q | Resistor_THT:R_Array_SIP10 | RN503, RN504 |
| 2 | 330Q | Resistor_THT:R_Array_SIP10 | RN502, RN505 |
| 1 | 1N4001 | Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal | D501 |
| 1 | 4.7KQ | Resistor_THT:R_Array_SIP10 | RN501 |
| 1 | 47uF | Capacitor_THT:CP_Radial_D7.5mm_P2.50mm | C201 |
| 1 | 74ALS139 | Package_DIP:DIP-16_W7.62mm_Socket | U305 |
| 1 | 74LS00 | Package_DIP:DIP-14_W7.62mm_Socket | U402 |
| 1 | 74LS06 | Package_DIP:DIP-14_W7.62mm_Socket | U404 |
| 1 | 74LS138 | Package_DIP:DIP-16_W7.62mm_Socket | U303 |
| 1 | 74LS245 | Package_DIP:DIP-20_W7.62mm_Socket | U304 |
| 1 | 74LS32 | Package_DIP:DIP-14_W7.62mm_Socket | U401 |
| 1 | 74LS74 | Package_DIP:DIP-14_W7.62mm_Socket | U403 |
| 1 | BOARD SELECT | Connector_PinHeader_2.54mm:PinHeader_2x08_P2.54mm_Vertical | P302 |
| 1 | C96ABC | RAC_Custom:C96ABCM-RA | DIN201 |
| 1 | DACK | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J501 |
| 1 | INTR | Connector_PinHeader_2.54mm:PinHeader_2x10_P2.54mm_Vertical | P301 |
| 1 | NCR5380 | Package_DIP:DIP-40_W15.24mm | U502 |
| 1 | RD_SRC | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | K302 |
| 1 | RESET | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | K301 |
| 1 | SCSI BUSS | Connector_PinHeader_2.54mm:PinHeader_2x25_P2.54mm_Horizontal | J504 |
| 1 | SCSI_ID | Connector_PinHeader_2.54mm:PinHeader_2x08_P2.54mm_Vertical | J502 |
| 1 | TERM_PWR | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J503 |
Questions
How big is the ECB SCSI-1.0-001 PCB?
It measures 160 × 100 mm and has 2 copper layers, 1.6 mm thick.
What parts does the ECB SCSI-1.0-001 use?
40 parts, built around the 74LS245SC, 74LS00SC, 74LS32SC and 74LS74PC. 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 ECB SCSI-1.0-001 KiCad files?
From the RichCini/ECB_SCSI repository on GitHub, at the commit this page was made from: the board is ECB SCSI-1.0-001.kicad_pcb and its schematic BusDrivers.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the ECB SCSI-1.0-001 design in my own project?
Its repository states no licence, so its author keeps all rights: ask RichCini before reusing the design.
Similar boards
- 2 layers350 × 224.3 mm
- 4 layers243.8 × 170.2 mm
- 4 layers276.9 × 172.7 mm
Simplevideo
gfoot/compvideo6502
Composite/component video output for homebrew 6502 computers
65 parts36Unlicense - 4 layers203.2 × 105.4 mm
- 4 layers194.5 × 188.6 mm
MyCpu
fortinsylvain/MyCpu
Home brew CPU Hardware with 1-bit ALU implementation using 74LSxx, a micro-code and assembler coded in C#.
162 parts18MIT - 2 layers99.7 × 149.9 mm
- 2 layers239.6 × 239.9 mm
