# UV-EPROM
**Wikidata**: [Q11252168](https://www.wikidata.org/wiki/Q11252168)  
**Source**: https://4ort.xyz/entity/uv-eprom

## Summary
UV-EPROM is a type of erasable programmable read-only memory (EPROM) that uses ultraviolet (UV) light to erase its contents. It consists of an array of floating-gate transistors programmed electronically and erased by exposure to strong UV light, making it a nonvolatile memory chip.

## Key Facts
- Subclass of erasable programmable read-only memory (EPROM)
- Uses UV light for erasure
- Comprises an array of floating-gate transistors
- Individually programmed by electronic devices
- Nonvolatile memory chip
- Sitelink count: 1
- Available in Japanese Wikipedia (ja)

## FAQs
### Q: What is the primary method for erasing UV-EPROM?
A: UV-EPROM is erased by exposure to strong ultraviolet (UV) light, which resets the memory contents.

### Q: How is UV-EPROM programmed?
A: UV-EPROM is programmed electronically using an electronic device, altering the state of floating-gate transistors.

### Q: What type of memory is UV-EPROM?
A: UV-EPROM is a nonvolatile memory chip, meaning it retains data even when power is removed.

## Why It Matters
UV-EPROM played a crucial role in early programmable memory technology, allowing for electronic reprogramming and UV-based erasure. It was widely used in applications requiring erasable, nonvolatile storage, such as firmware updates and embedded systems. While later technologies like EEPROM and flash memory have largely replaced UV-EPROM, it remains significant in historical contexts and certain niche applications where UV erasure is preferred.

## Notable For
- First use of UV light for erasure in programmable memory
- Nonvolatile storage solution before EEPROM and flash memory
- Historical importance in early electronic programming
- Reliable for firmware updates in embedded systems
- Limited availability in modern applications due to obsolescence

## Body
### Definition and Function
UV-EPROM is a subclass of erasable programmable read-only memory (EPROM) that uses ultraviolet light for erasure. It consists of an array of floating-gate transistors, which are programmed electronically and erased by exposure to strong UV light.

### Technical Specifications
- **Sitelink Count**: 1
- **Wikipedia Availability**: Japanese (ja)

### Historical Context
UV-EPROM was a key development in programmable memory technology, allowing for electronic reprogramming and UV-based erasure. It was widely used in applications requiring erasable, nonvolatile storage, such as firmware updates and embedded systems.

### Obsolescence and Legacy
While later technologies like EEPROM and flash memory have largely replaced UV-EPROM, it remains significant in historical contexts and certain niche applications where UV erasure is preferred. Its role in early electronic programming makes it a notable entry in memory technology history.