# 229 series integrated circuits

> early Soviet hybrid ECL circuits

**Wikidata**: [Q130436610](https://www.wikidata.org/wiki/Q130436610)  
**Source**: https://4ort.xyz/entity/229-series-integrated-circuits

## Summary
The 229 series integrated circuits are early Soviet hybrid emitter-coupled logic (ECL) circuits developed in 1972. They represent a model series of integrated circuits sharing the same part prefix, combining different semiconductor devices and passive components on a substrate. These circuits were manufactured by Angstrem and comply with Soviet integrated circuit designation standards.

## Key Facts
- Part of the integrated circuit series class, sharing the same part prefix (229)
- Developed by Angstrem, a Soviet manufacturer
- Inception: 1972
- Subclass of hybrid integrated circuits and emitter-coupled logic (ECL)
- Complies with Soviet integrated circuit designation standards
- Part of the broader category of hybrid integrated circuits, which combine semiconductor devices and passive components on a substrate
- Described at http://www.155la3.ru/k229.htm
- Featured in the Wikimedia Commons category "229 series integrated circuits"

## FAQs
### Q: What type of integrated circuits are in the 229 series?
A: The 229 series consists of early Soviet hybrid emitter-coupled logic (ECL) circuits, combining semiconductor devices and passive components on a substrate.

### Q: Who manufactured the 229 series integrated circuits?
A: The 229 series was manufactured by Angstrem, a Soviet electronics company.

### Q: When were the 229 series integrated circuits developed?
A: The 229 series was developed in 1972.

### Q: What is the significance of the 229 series in Soviet electronics?
A: The 229 series represents an early example of Soviet hybrid ECL circuits, contributing to the development of integrated circuit technology in the USSR.

### Q: Where can I find more information about the 229 series?
A: Detailed information can be found at http://www.155la3.ru/k229.htm.

## Why It Matters
The 229 series integrated circuits hold historical significance as part of the Soviet Union’s early efforts in developing hybrid integrated circuits. As hybrid ECL circuits, they combined semiconductor devices and passive components on a substrate, a key advancement in miniaturized electronics. Manufactured by Angstrem, these circuits comply with Soviet integrated circuit designation standards, reflecting the country’s independent development of electronic components during the Cold War. Their inclusion in the broader category of hybrid integrated circuits highlights their role in bridging traditional and modern electronic design. While not as widely documented as Western counterparts, the 229 series provides insight into the Soviet approach to high-speed logic circuits, contributing to the global evolution of integrated circuit technology.

## Notable For
- One of the earliest Soviet hybrid ECL circuits, demonstrating the USSR’s capability in high-speed logic design
- Manufactured by Angstrem, a key Soviet electronics company
- Complies with Soviet integrated circuit designation standards
- Part of the broader class of hybrid integrated circuits, combining semiconductor devices and passive components
- Featured in the Wikimedia Commons category "229 series integrated circuits"

## Body
### Classification
The 229 series is classified as an integrated circuit series, specifically a subclass of hybrid integrated circuits and emitter-coupled logic (ECL). This means they combine semiconductor devices and passive components on a single substrate, enabling high-speed signal processing.

### Development
The 229 series was developed in 1972 by Angstrem, a Soviet manufacturer of electronic components. The circuits were designed to meet Soviet integrated circuit designation standards, reflecting the country’s independent development of electronics during the Cold War.

### Manufacturing
Angstrem produced the 229 series, contributing to the Soviet Union’s efforts in miniaturized electronics. The circuits were part of a broader initiative to develop hybrid integrated circuits, which combine different semiconductor devices and passive components on a substrate.

### Historical Context
The 229 series represents an early example of Soviet hybrid ECL circuits, which were crucial for high-speed logic applications. While not as widely documented as Western counterparts, these circuits played a role in the global evolution of integrated circuit technology.

### Availability
Detailed information about the 229 series can be found at http://www.155la3.ru/k229.htm. Additionally, images and further details are available in the Wikimedia Commons category "229 series integrated circuits."