# 7490
**Wikidata**: [Q107454620](https://www.wikidata.org/wiki/Q107454620)  
**Source**: https://4ort.xyz/entity/7490

## Summary
7490 is a transistor–transistor logic (TTL) integrated circuit belonging to the 7400 series, introduced in 1964 as part of the SN5400 family and in 1966 as part of the SN7400 family. It is part of a broader series of TTL ICs that revolutionized digital electronics by providing standardized, reliable logic components.

## Key Facts
- Part of the 7400 series of TTL integrated circuits
- Introduced in 1964 as part of the SN5400 family and in 1966 as part of the SN7400 family
- Features an image available at [Wikimedia Commons](https://commons.wikimedia.org/wiki/Special:FilePath/FLJ161.jpg)
- Includes a schematic diagram at [Wikimedia Commons](https://commons.wikimedia.org/wiki/Special:FilePath/Ttl_inside_7490.svg)
- Categorized under "7490 (TTL)" on Wikimedia Commons
- Available in two language versions of Wikipedia: German and Commons

## FAQs
**What is the 7490 series, and what role does it play in electronics?**
The 7490 is a specific integrated circuit within the 7400 series of transistor–transistor logic (TTL) chips. It is part of a broader family of TTL ICs that standardized and simplified digital circuit design in the 1960s and beyond.

**When was the 7490 introduced, and what were its initial versions?**
The 7490 was introduced in 1964 as part of the SN5400 family and later in 1966 as part of the SN7400 family, reflecting its evolution in TTL technology.

**Where can I find visual representations of the 7490?**
Images and schematics of the 7490 are available on Wikimedia Commons, including a general image of TTL components and a specific schematic diagram.

**Is the 7490 documented in multiple languages?**
Yes, the 7490 has Wikipedia entries in German and Commons, indicating its broader documentation and recognition in different linguistic resources.

## Why It Matters
The 7490 is significant as part of the 7400 series, which played a pivotal role in the development of digital electronics. TTL technology, including the 7490, provided reliable, standardized components that enabled the rapid growth of computing and communication systems. Its introduction marked a shift toward more efficient and scalable digital circuits, influencing countless applications from early computers to modern integrated systems.

## Notable For
- Being a foundational component in the 7400 series of TTL ICs
- Its inclusion in both the SN5400 and SN7400 families, reflecting its adaptability and widespread use
- The availability of detailed visual and schematic resources, aiding in its study and application
- Its documentation in multiple languages, indicating its global relevance and documentation

## Body
### Classification and Series
The 7490 is a member of the 7400 series, a family of transistor–transistor logic (TTL) integrated circuits that revolutionized digital electronics. The series was introduced in two distinct versions: the SN5400 family in 1964 and the SN7400 family in 1966. This dual introduction reflects the series' adaptability and its role in both military and commercial applications.

### Visual and Technical Resources
The 7490 is accompanied by visual and technical resources on Wikimedia Commons. These include a general image of TTL components and a specific schematic diagram, which are valuable for understanding its internal structure and functionality. These resources are categorized under "7490 (TTL)" on the platform.

### Documentation and Accessibility
The 7490 has Wikipedia entries in German and Commons, indicating its broader documentation and recognition in different linguistic resources. This accessibility makes it easier for engineers, hobbyists, and researchers to study and apply the technology.

### Historical Context
The 7490's inclusion in the 7400 series is part of a broader trend in TTL technology, which provided reliable, standardized components that enabled the rapid growth of computing and communication systems. Its introduction marked a shift toward more efficient and scalable digital circuits, influencing countless applications from early computers to modern integrated systems.