1802-Mini-Super-Elf-Bus
About the 1802-Mini-Super-Elf-Bus PCB
1802-Mini-Super-Elf-Bus is an open source PCB design by dmadole, published on GitHub. It is a 2-layer board measuring 100 × 100 mm, with 54 components from 30 distinct parts.
Other key parts include the 4049, 4011, 4071, 4001 and 4023. By type, the board carries 18 resistors, 10 connectors, 9 ICs, 7 jumpers, 7 capacitors and 3 diodes.
From the project
This is a bus adapter card for the Quest Super Elf that adapts it to expansion cards for the 1802/Mini system.
Connects to 50-pin expansion connector on Super Elf 64K of memory in two 32K RAM, EPROM, or EEPROM devices Supports 62C64, 62C256, 27C64, 27C256, 28C64, 28C256 Can temporarily map a ROM at $8000 to $0000 with M key TTL level port with Q and selectable EF pin for soft serial Transmit and receive polarity selectable on serial port Buffered data bus for reliability across ribbon cable Additional pull-up resistors for improved rise time on inputs Voltage regulator allows powing expansion cards from Super Elf Mini-USB connector for independent 5 volt power input Form factor allows stacking or…
Main components on the 1802-Mini-Super-Elf-Bus
1802-Mini-Super-Elf-Bus bill of materials (BOM)
54 components, 30 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 4049 | DIP-16_W7.62mm_Socket | U1 |
| 1 | 4011 | DIP-14_W7.62mm_Socket | U2 |
| 1 | 4071 | DIP-14_W7.62mm_Socket | U3 |
| 1 | 4001 | DIP-14_W7.62mm_Socket | U4 |
| 1 | 4023 | DIP-14_W7.62mm_Socket | U5 |
| 1 | LO_MEM | DIP-28_W15.24mm_Socket | U6 |
| 1 | HI_MEM | DIP-28_W15.24mm_Socket | U7 |
| 1 | 40245 | DIP-20_W7.62mm_Socket | U8 |
| 1 | LM2940CT | PinHeader_1x03_P2.54mm_Vertical | U9 |
| 4 | Mount | 1pin | J1, J2, J3, J4 |
| 1 | 1802/Mini Bus | PinHeader_1x39_P2.54mm_Vertical | J5 |
| 1 | SLOT_1_CONFIG | PinHeader_1x09_P2.54mm_Vertical | J6 |
| 1 | Super Elf Bus | PinHeader_2x25_P2.54mm_Horizontal_Row1_Row2 | J7 |
| 1 | USB PWR | USB_Mini-AB_Molex_56579_0519 | J8 |
| 1 | Serial Port | PinHeader_1x06_P2.54mm_Horizontal | J9 |
| 1 | SLOT_2_CONFIG | PinHeader_1x09_P2.54mm_Vertical | J10 |
| 1 | POWER | PinHeader_1x02_P2.54mm_Vertical | JP1 |
| 2 | PWR SRC | PinHeader_1x03_P2.54mm_Vertical | JP2, JP3 |
| 1 | TX_INV | PinHeader_1x03_P2.54mm_Vertical | JP8 |
| 1 | RX_SEL | PinHeader_1x03_P2.54mm_Vertical | JP9 |
Show 10 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | RX_INV | PinHeader_1x03_P2.54mm_Vertical | JP10 |
| 1 | RX_IDL | PinHeader_1x03_P2.54mm_Vertical | JP11 |
| 3 | 4148 | D_DO-35_SOD27_P7.62mm_Horizontal | D1, D2, D3 |
| 1 | 10uF | CP_Radial_Tantal_D4.5mm_P2.50mm | C1 |
| 1 | 0.47uF | CP_Radial_Tantal_D4.5mm_P2.50mm | C2 |
| 1 | 22uF | CP_Radial_Tantal_D4.5mm_P2.50mm | C3 |
| 4 | 0.1u | C_Disc_D4.7mm_W2.5mm_P5.00mm | C4, C5, C6, C7 |
| 9 | 4.7K | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1, R2, R3, R4, R5, R6, R7, R16 +1 |
| 8 | 1K | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R8, R9, R10, R11, R12, R13, R14, R15 |
| 1 | 47K | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R18 |
1802-Mini-Super-Elf-Bus design files
The KiCad project lives in the dmadole/1802-Mini-Super-Elf-Bus repository on GitHub; these links point at the commit this page was built from.
1802-Mini-Super-Elf-Bus: common questions
How big is the 1802-Mini-Super-Elf-Bus PCB?
The 1802-Mini-Super-Elf-Bus measures 100 × 100 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the 1802-Mini-Super-Elf-Bus?
54 components, from 30 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the 1802-Mini-Super-Elf-Bus design files?
From the dmadole/1802-Mini-Super-Elf-Bus repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.
Can I use the 1802-Mini-Super-Elf-Bus design in my own project?
The repository has no license, so all rights stay with dmadole. Use it as a reference, and ask the author before reusing the design.