# 133 series integrated circuits

> series of Soviet TTL logic circuits (clone of the original 54xx series)

**Wikidata**: [Q115861502](https://www.wikidata.org/wiki/Q115861502)  
**Source**: https://4ort.xyz/entity/133-series-integrated-circuits

## Summary
The 133 series integrated circuits are a series of Soviet transistor–transistor logic (TTL) circuits. Developed as a clone of the original 54xx series, which is part of the 7400 series, these circuits began research and development in 1967 and entered industrial manufacturing in 1969. They provided essential logic components for Soviet electronics, complying with Soviet integrated circuit designation.

## Key Facts
- The 133 series integrated circuits are an instance of an integrated circuit series.
- They are a subclass of transistor–transistor logic and integrated circuits.
- They were developed and manufactured in the Soviet Union.
- The series is based on the 7400 series, specifically cloning the original 54xx series.
- Research and development for the 133 series began in 1967.
- Industrial manufacturing of the 133 series started in 1969.
- These integrated circuits utilize Flatpack packaging.
- The 133 series complies with Soviet integrated circuit designation.
- An alias for the series is "54".

## FAQs
### Q: What is the 133 series integrated circuits?
A: The 133 series integrated circuits are a series of transistor–transistor logic (TTL) circuits developed in the Soviet Union. They are notable for being a clone of the original 54xx series, which is part of the broader 7400 series of integrated circuits.

### Q: When was the 133 series developed and manufactured?
A: Research and development for the 133 series integrated circuits began in 1967. Industrial manufacturing of these circuits commenced in 1969.

### Q: What was the 133 series based on?
A: The 133 series integrated circuits were based on the 7400 series, specifically cloning the original 54xx series of transistor–transistor logic circuits.

### Q: Where were the 133 series integrated circuits produced?
A: The 133 series integrated circuits were produced in the Soviet Union. They complied with the Soviet integrated circuit designation.

## Why It Matters
The 133 series integrated circuits hold significance as a foundational component in Soviet electronics and computing during the Cold War era. As a direct clone of the widely adopted 54xx series (part of the 7400 series), the 133 series allowed the Soviet Union to independently produce and utilize standard transistor–transistor logic (TTL) technology. This capability was crucial for national security and technological self-reliance, enabling the development of various electronic systems without relying on foreign imports. The inception of research and development in 1967, followed by industrial manufacturing in 1969, demonstrates the Soviet Union's commitment to establishing its own integrated circuit production capabilities. By complying with Soviet integrated circuit designation and utilizing packaging like Flatpack, the 133 series played a vital role in standardizing and advancing the domestic electronics industry, contributing to the broader technological landscape of the Soviet Union.

## Notable For
- Being a series of Soviet transistor–transistor logic (TTL) circuits.
- Functioning as a clone of the original 54xx series, which is part of the 7400 series.
- Its inception with research and development in 1967 and industrial manufacturing in 1969.
- Utilizing Flatpack packaging for its components.
- Complying with the specific Soviet integrated circuit designation.

## Body

### Overview
The 133 series integrated circuits represent a significant development in Soviet electronics. This series comprises transistor–transistor logic (TTL) circuits, which are a fundamental type of digital logic gate. The 133 series is classified as an instance of an integrated circuit series and is a subclass of both transistor–transistor logic and integrated circuits.

### Development and Manufacturing
The 133 series was developed and manufactured in the Soviet Union.
- **Research and Development:** The initial research and development phase for the 133 series began in 1967.
- **Industrial Manufacturing:** Industrial production of these integrated circuits commenced in 1969.
- **Basis:** The series was specifically designed as a clone of the original 54xx series, which itself is a part of the broader 7400 series of integrated circuits.

### Characteristics
- **Packaging:** The 133 series integrated circuits utilized Flatpack packaging.
- **Designation:** The series complied with the Soviet integrated circuit designation system.
- **Alias:** The series is also known by the alias "54", reflecting its origin as a clone of the 54xx series.

### Related Entities
- **Parent Class:** The 133 series is fundamentally an "integrated circuit".
- **Related Class:** It belongs to the broader category of "integrated circuit series".
- **Based On:** The series is directly "based on" the "7400 series" of integrated circuits. The 7400 series itself saw inception with the SN5400 in 1964 and the SN7400 in 1966.

## References

1. [Source](http://www.155la3.ru/k133.htm)