HN27C301 to TC531000
alxlab-zone66x·HN27C301-to-TC531000·kicad/HN27C301 to TC531000.kicad_pcb
About the HN27C301 to TC531000 PCB
HN27C301 to TC531000 is an open source PCB design by alxlab-zone66x, published on GitHub under the CC-BY-NC-4.0 license. It is a 2-layer board measuring 15.2 × 40.9 mm, with 6 components from 3 distinct parts.
Other key parts include the HN27C301 and TC531000. By type, the board carries 4 jumpers and 2 ICs.
From the project
Non-JEDEC 1M (128Kx8) EPROM to TC531000 MROM adapter.
This is a DIP non-JEDEC 1M (128Kx8) EPROM to TC531000 MROM adapter. This can be used in various systems like a Macintosh SE or Apple IIGS that uses the TC531000 for it's ROM.
Here's a list of non-JEDEC 1M (128Kx8) EPROMs that will work with this adapter:
- AMD 27C100 - Fujitsu MBM27C1000 - Hitachi HN27C301 - Intel 27C100 - Macronix MX27C1001 - NEC D27C1000 - Sony CXK27C100 - ST M27C1000 - ST ST27C1000 - Toshiba TC571001

Main components on the HN27C301 to TC531000
HN27C301 to TC531000 bill of materials (BOM)
6 components, 3 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | HN27C301 | HN27C301-to-TC531000_DIP-32_W15.24mm_LongPads | U1 |
| 1 | TC531000 | HN27C301-to-TC531000_DIP-28_W15.24mm_LongPads | U2 |
| 4 | SolderJumper_2_Open | SolderJumper-2_P1.127mm_Open_RoundedPad1.0x1.2mm | JP1, JP2, JP3, JP4 |
HN27C301 to TC531000 design files
The KiCad project lives in the alxlab-zone66x/HN27C301-to-TC531000 repository on GitHub; these links point at the commit this page was built from.
HN27C301 to TC531000: common questions
How big is the HN27C301 to TC531000 PCB?
The HN27C301 to TC531000 measures 15.2 × 40.9 mm, has 2 copper layers and is 1.018 mm thick.
How many components are on the HN27C301 to TC531000?
6 components, from 3 distinct parts. The full bill of materials is listed on this page.
Where can I download the HN27C301 to TC531000 design files?
From the alxlab-zone66x/HN27C301-to-TC531000 repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the HN27C301 to TC531000 design in my own project?
It is published under CC-BY-NC-4.0, which limits how it may be reused; read the license before building on it.