# 28 pin  1Mbit Mask ROM replacement

Replacement of 28 pin 1Mbit Mask ROMs used on arcade PCBs

- **Seller:** [Caius Arcade ](https://www.lectronz.com/stores/caiusarcade), Vietri sul Mare (Salerno), Campania, Italy
- **Price:** €17.25 (EUR, before shipping and taxes)
- **Availability:** In stock
- **Categories:** Gaming, Retrocomputing
- **Product page:** https://www.lectronz.com/products/-28-pin-1mbit-mask-rom-replacement

## Images

![28 pin  1Mbit Mask ROM replacement](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NjA3NzcsInB1ciI6ImJsb2JfaWQifX0=--68a2b8828daacf07a0a7fa078fedf8230d77d92f/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/2020-12-26T08-59-30.847Z-20201225_184007.jpg)
![28 pin  1Mbit Mask ROM replacement](https://lectronz-images.b-cdn.net/lectronz/active_storage/representations/proxy/eyJfcmFpbHMiOnsiZGF0YSI6NjA3NzgsInB1ciI6ImJsb2JfaWQifX0=--7f217f3de54cb5978858b8c862bdd1843f1d358a/eyJfcmFpbHMiOnsiZGF0YSI6eyJmb3JtYXQiOiJqcGciLCJyZXNpemVfdG9fbGltaXQiOls5NjAsNjQwXSwic2F2ZXIiOnsic3RyaXAiOnRydWV9fSwicHVyIjoidmFyaWF0aW9uIn19--970c165836a83091725a1a0fd4f37ce9408da1bf/2020-12-26T08-59-30.847Z-20201225_095138.jpg)

## Description

#### What is it?

This is a pre-assembled board meant to be used as a replacement for 28 pin 1Mbit Mask ROMs (like 23C1000, 831000 and TC531000) widely used on arcade PCBs. Each board comes assembled in all its parts and pre-programmed with ROM file at your choice so it's a ready-to-use solution.


#### Why did you make it?

I did it because the original part breaks very easily, making expensive and valuable arcade PCBs useless.

#### What makes it special?

The replacement has exactly the same functionality of the original parts which are known to be prone to failure.

## Shipping policy

Shipping is tracked, you receive the tracking number.

- No insurance.

- Item ships within 7 business days.

- Delivery is usually done within 7-15 business days.