# 243 series integrated circuits

> Soviet fast hybrid TTL

**Wikidata**: [Q130457812](https://www.wikidata.org/wiki/Q130457812)  
**Source**: https://4ort.xyz/entity/243-series-integrated-circuits

## Summary
The 243 series integrated circuits are Soviet fast hybrid transistor–transistor logic (TTL) chips developed by Exiton and designed by Valery Leonidovich Dshkhunyan. They are part of a broader series of integrated circuits sharing the same part prefix and follow Soviet integrated circuit designation standards.

## Key Facts
- Part of the broader **integrated circuit series** with the prefix "243"
- Developed by **Exiton** and designed by **Valery Leonidovich Dshkhunyan**
- Classified as a **hybrid integrated circuit**, combining different semiconductor devices and passive components on a substrate
- Follows the **Soviet integrated circuit designation** system
- Used in applications such as **5E53** (referenced in external documentation)
- Manufactured by **Exiton**, a Soviet electronics company
- Subclass of **transistor–transistor logic (TTL)** and **hybrid integrated circuits**
- Associated with the **Soviet Union** as the country of origin
- Described as **fast hybrid TTL** in technical documentation
- Documented in Russian-language sources, including a reference to **http://www.155la3.ru/k243.htm**

## FAQs
### Q: What type of integrated circuits are in the 243 series?
A: The 243 series consists of **fast hybrid transistor–transistor logic (TTL) integrated circuits**, combining semiconductor devices and passive components on a substrate.

### Q: Who developed the 243 series integrated circuits?
A: The 243 series was developed by **Exiton**, a Soviet electronics company, and designed by **Valery Leonidovich Dshkhunyan**.

### Q: Where can I find more information about the 243 series?
A: Detailed documentation is available in Russian at **http://www.155la3.ru/k243.htm**, including references to applications like the **5E53**.

### Q: What is the significance of the 243 series in Soviet electronics?
A: The 243 series represents a part of Soviet efforts to develop **hybrid integrated circuits** following the **Soviet integrated circuit designation** system, contributing to fast TTL technology.

### Q: Are there any known applications of the 243 series?
A: Yes, the 243 series was used in systems like the **5E53**, as referenced in external documentation.

## Why It Matters
The 243 series integrated circuits played a role in Soviet electronics by providing **fast hybrid TTL solutions** that combined semiconductor devices with passive components on a substrate. As part of the broader **integrated circuit series**, they followed Soviet standards for classification and designation. Developed by **Exiton** and designed by **Valery Leonidovich Dshkhunyan**, these chips contributed to the Soviet Union’s efforts in miniaturized electronic circuit development. While specific applications like the **5E53** are documented, their broader impact on Soviet electronics remains an area of study. The series highlights the Soviet Union’s technical advancements in hybrid integrated circuits during a period of significant electronics innovation.

## Notable For
- **Fast hybrid TTL design**: Combines semiconductor devices and passive components for high-speed performance.
- **Soviet integrated circuit series**: Part of a broader classification system following Soviet standards.
- **Developed by Exiton**: Manufactured by a key Soviet electronics company.
- **Designed by Valery Leonidovich Dshkhunyan**: Contributed to the technical specifications.
- **Documented in Russian sources**: Key references available in Russian-language technical documentation.

## Body
### Classification and Development
The 243 series is part of the **integrated circuit series** with the prefix "243," following Soviet standards for **hybrid integrated circuits**. These circuits combine different semiconductor devices and passive components on a substrate, classified as **transistor–transistor logic (TTL)**.

### Manufacturers and Designers
Developed by **Exiton**, a Soviet electronics company, and designed by **Valery Leonidovich Dshkhunyan**, the 243 series was manufactured following Soviet integrated circuit designation practices.

### Applications and Usage
The 243 series was used in systems like the **5E53**, as referenced in external documentation. While specific applications are documented, their broader role in Soviet electronics remains an area of study.

### Technical Specifications
Described as **fast hybrid TTL**, the 243 series integrates semiconductor devices with passive components for high-speed performance. The series follows Soviet standards for classification and designation.

### Documentation and References
Key references for the 243 series are available in Russian-language sources, including **http://www.155la3.ru/k243.htm**, which provides detailed technical documentation.

## References

1. Q135902246
2. [Source](http://www.155la3.ru/k243.htm)