MM58167-ISA-RTC
About the MM58167-ISA-RTC PCB
MM58167-ISA-RTC is an open source PCB design by jensma-de, published on GitHub. It is a 2-layer board measuring 89.3 × 50 mm, with 29 components from 22 distinct parts.
Other key parts include the 74LS245, 74LS138, 74HC04, MM58167 and 4072. By type, the board carries 8 capacitors, 5 ICs, 5 resistors, 3 jumpers, 3 diodes and 2 transistors.
From the project
RTC module for the ISA slot. With schematics, project files in kicad and open source software to drive the clock.
Plug the card into a free ISA slot, either 8bit or 16bit.
Download the control prgram and put it on your PC:
Control program: MM58167.EXE (Source: MM58167.BAS)
Control program: MM58167GER.EXE (Source: MM58167GER.BAS)
Next, have a look at the usage description:
At first you need to set the current time and date to the clock:
After this command you can set the date interactively. Next up is the time:
Main components on the MM58167-ISA-RTC
MM58167-ISA-RTC bill of materials (BOM)
29 components, 22 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 74LS245 | DIP-20_W7.62mm_Socket | U1 |
| 1 | 74LS138 | DIP-16_W7.62mm_Socket | U2 |
| 1 | 74HC04 | DIP-14_W7.62mm_Socket | U3 |
| 1 | MM58167 | DIP-24_W15.24mm_Socket | U4 |
| 1 | 4072 | DIP-14_W7.62mm_Socket | U6 |
| 1 | 2N2907A | TO-92_Inline_Wide | Q1 |
| 1 | 2N2222A | TO-92_Inline_Wide | Q2 |
| 1 | 32.768kHz | Crystal_AT310_D3.0mm_L10.0mm_Horizontal | Y1 |
| 1 | Battery | Rainpro CR2032 | BT1 |
| 1 | Bus_ISA_8bit | BUS_AT | BUS1 |
| 2 | Jumper_3_Open | PinHeader_1x03_P2.54mm_Vertical | JP1, JP2 |
| 1 | Jumper_3_Bridged12 | jumper_3 | JP3 |
| 2 | 1N4148 | D_DO-35_SOD27_P7.62mm_Horizontal | D1, D2 |
| 1 | 1N5225B | D_DO-35_SOD27_P7.62mm_Horizontal | D3 |
| 2 | 6pF | C_Disc_D3.0mm_W1.6mm_P2.50mm | C1, C2 |
| 1 | 100uF | CP_Radial_D5.0mm_P2.00mm | C3 |
| 5 | 100nF | C_Disc_D3.0mm_W1.6mm_P2.50mm | C4, C5, C6, C7, C8 |
| 1 | 20M | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1 |
| 1 | 100K | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R2 |
| 1 | 10K | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R3 |
Show 2 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | 1K | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R4 |
| 1 | 5K | R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R5 |
MM58167-ISA-RTC design files
The KiCad project lives in the jensma-de/MM58167-ISA-RTC repository on GitHub; these links point at the commit this page was built from.
- Layoutmain/main.kicad_pcb
- Schematicmain/main.kicad_sch
MM58167-ISA-RTC: common questions
How big is the MM58167-ISA-RTC PCB?
The MM58167-ISA-RTC measures 89.3 × 50 mm, has 2 copper layers and is 1.6 mm thick.
How many components are on the MM58167-ISA-RTC?
29 components, from 22 distinct parts. The full bill of materials is listed on this page.
Where can I download the MM58167-ISA-RTC design files?
From the jensma-de/MM58167-ISA-RTC repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the MM58167-ISA-RTC design in my own project?
The repository has no license, so all rights stay with jensma-de. Use it as a reference, and ask the author before reusing the design.