4 layers304.5 × 217.2 mm
Latest Full Backplane
Trilobyte-CPU/8-bit-computer
A DIY 8-bit computer built mostly with discrete logic chips
478 parts2
4 layers45.2 × 57.9 mm
ADC Decoder Controller
Trilobyte-CPU/8-bit-computer2A DIY 8-bit computer built mostly with discrete logic chips
- Size
- 45.2 × 57.9 mm
- Copper layers
- 4
- Thickness
- 4.69 mm
- Parts
- 24
- Nets
- 48
- Pads
- 135
- Tracks, vias
- 390, 57
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 20 Apr 2021
- Updated
- 9 Nov 2022
Overview
ADC Decoder Controller is an open-source printed circuit board by Trilobyte-CPU, from the Trilobyte-CPU/8-bit-computer repository on GitHub. It is a 4-layer board of 45.2 × 57.9 mm with 24 parts on 48 nets, routed with 390 tracks and 57 vias.
It is built around the 74LS245SC, 74LS21PC and 74LS04PC, with the 74LS148P-E among its other parts. Its parts include 6 resistors, 6 diodes, 5 ICs, 3 capacitors and 3 connectors.
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
74LS21PC
DIP-140℃~+70℃ 18ns@5V,50pF 2 2.7V~3.4V 2V 4 4.75V~5.25V 400uA 500mV 74LS 800mV 8mA AND Gate DIP-14 Logic Gates ROHSonsemiLogic Gates74LS04PC
PDIP-140℃~+70℃ 4.75V~5.25V 6 6.6mA 74LS PDIP-14 InvertersonsemiInverters
74LS148P-E
DIP-16-20℃~+75℃ 10mA 15ns@5V,15pF 4.75V~5.25V 400uA 74LS 8mA Decoder DIP-16 Signal Switches, Multiplexers, Decoders ROHSRenesas ElectronicsSignal Switches, Multiplexers, Decoders
Parts
24| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | LED | LED_SMD:LED_0805_2012Metric | D1, D2, D3, D4, D5, D6 |
| 6 | R_Small_US | Resistor_SMD:R_0805_2012Metric | R3, R4, R5, R6, R7, R8 |
| 3 | C_Small | Capacitor_SMD:C_0805_2012Metric | C1, C2, C3 |
| 2 | 74LS21 | Package_SO:SOIC-14_3.9x8.7mm_P1.27mm | U1, U2 |
| 1 | 74LS04 | Package_SO:SOIC-14_3.9x8.7mm_P1.27mm | U4 |
| 1 | 74LS148 | Package_SO:SOIC-16_3.9x9.9mm_P1.27mm | U3 |
| 1 | 74LS245 | Package_SO:SOIC-20W_7.5x12.8mm_P1.27mm | U5 |
| 1 | Conn_01x03 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J3 |
| 1 | Conn_01x08 | Connector_PinHeader_2.54mm:PinHeader_1x08_P2.54mm_Vertical | J1 |
| 1 | Conn_01x16 | Connector_PinHeader_2.54mm:PinHeader_1x16_P2.54mm_Vertical | J2 |
The 23 most common of 24 parts.
Questions
How big is the ADC Decoder Controller PCB?
It measures 45.2 × 57.9 mm and has 4 copper layers, 4.69 mm thick.
What parts does the ADC Decoder Controller use?
24 parts, built around the 74LS245SC, 74LS21PC, 74LS04PC and 74LS148P-E. 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 ADC Decoder Controller KiCad files?
From the Trilobyte-CPU/8-bit-computer repository on GitHub, at the commit this page was made from: the board is PCBs/99_IN PROGRESS/ADC-Decoder-Controller/ADC-Decoder-Controller.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the ADC Decoder Controller design in my own project?
Its repository states no licence, so its author keeps all rights: ask Trilobyte-CPU before reusing the design.
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