2 layers407 × 184 mm
TRS-80-Model I G E1
RetroStack/TRS-80-Model-I-G-E1
Hardware Replica of the TRS-80 Model I Revision G
230 parts57MIT
2 layers
ElectronicClock
Aniruddha-Deb/ElectronicClockClock based on CMOS 40xx and TTL 74xx logic IC's
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 91
- Nets
- 158
- Pads
- 453
- Tracks, vias
- 186, 0
- Routed
- Yes
- KiCad
- KiCad 4
- Created
- 20 Jun 2018
- Updated
- 23 Jun 2018
Overview
ElectronicClock is an open-source printed circuit board by Aniruddha-Deb, from the Aniruddha-Deb/ElectronicClock repository on GitHub. It is a 2-layer board with 91 parts on 158 nets, routed with 186 tracks and 0 vias.
It is built around the 74LS93SC. Its parts include 57 resistors, 7 switches, 4 ICs, 2 capacitors and 2 diodes. It belongs with the lEDs and displays boards of this library.
Main components
1Parts
91| Qty | Value | Footprint | References |
|---|---|---|---|
| 48 | 1k | Resistors_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R10, R11, R12, R13, R14, R15, R16, R17, R18, R19, R20, R21, R22, R23, R24, R25 +32 |
| 7 | 10k | Resistors_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R2, R3, R4, R5, R6, R7, R8 |
| 6 | 74LS47 | Housings_DIP:DIP-16_W7.62mm_Socket_LongPads | DRV_H0, DRV_H1, DRV_M0, DRV_M1, DRV_S0, DRV_S1 |
| 6 | 74LS93 | Housings_DIP:DIP-14_W7.62mm_Socket_LongPads | CTR_H0, CTR_H1, CTR_M0, CTR_M1, CTR_S0, CTR_S1 |
| 6 | 7SEGMENTS | Displays_7-Segment:7SegmentLED_LTS6760_LTS6780 | DP_H0, DP_H1, DP_M0, DP_M1, DP_S0, DP_S1 |
| 6 | SW_Push | Buttons_Switches_THT:SW_PUSH_6mm | SW1, SW2, SW3, SW4, SW5, SW6 |
| 2 | 74LS08 | Housings_DIP:DIP-14_W7.62mm_Socket_LongPads | U2, U3 |
| 2 | D | Diodes_THT:D_DO-41_SOD81_P7.62mm_Horizontal | D1, D2 |
| 1 | 10M | Resistors_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R0 |
| 1 | 10p | Capacitors_THT:C_Disc_D3.0mm_W2.0mm_P2.50mm | C0 |
| 1 | 22p | Capacitors_THT:C_Disc_D3.0mm_W2.0mm_P2.50mm | C1 |
| 1 | 4060N | Housings_DIP:DIP-16_W7.62mm_Socket_LongPads | U0 |
| 1 | 470k | Resistors_THT:R_Axial_DIN0204_L3.6mm_D1.6mm_P7.62mm_Horizontal | R1 |
| 1 | 74LS73 | Housings_DIP:DIP-14_W7.62mm_Socket_LongPads | U1 |
| 1 | Crystal | Crystals:Crystal_DS10_d1.0mm_l4.3mm_Horizontal_1EP_style1 | X1 |
| 1 | SW_DPDT_x2 | switch_dpdt:SWITCH_DPDT_8x8mm | SW0 |
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Questions
What parts does the ElectronicClock use?
91 parts, built around the 74LS93SC. 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 ElectronicClock KiCad files?
From the Aniruddha-Deb/ElectronicClock repository on GitHub, at the commit this page was made from: the board is ElectronicClock.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the ElectronicClock design in my own project?
Its repository states no licence, so its author keeps all rights: ask Aniruddha-Deb before reusing the design.