# 134 series integrated circuits

> series of Soviet TTL logic circuits

**Wikidata**: [Q115861503](https://www.wikidata.org/wiki/Q115861503)  
**Source**: https://4ort.xyz/entity/134-series-integrated-circuits

## Summary
134 series integrated circuits are a Soviet series of transistor–transistor logic (TTL) integrated circuits. They are an integrated-circuit series based on the Western 7400 series and comply with the Soviet integrated circuit designation system.

## Key Facts
- 134 series is an integrated circuit series of Soviet origin (country: Soviet Union).
- The series is a subclass of transistor–transistor logic (TTL) and of integrated circuit.
- 134 series is explicitly based_on the 7400 series of TTL integrated circuits.
- The series uses flatpack packaging.
- Aliases for the series include "54L" and "74L".
- The series complies_with the Soviet integrated circuit designation system.
- Instance_of: integrated circuit series (classification).
- Commons image available: https://commons.wikimedia.org/wiki/Special:FilePath/134ИД6_Гамма.jpg.
- Commons category: 134 series integrated circuits.
- Wikidata description: "series of Soviet TTL logic circuits."
- Sitelink_count (structured property): 1.

## FAQs
### Q: What are 134 series integrated circuits?
A: They are a series of Soviet transistor–transistor logic (TTL) integrated circuits created as part of the USSR's integrated-circuit families. The series is based on the Western 7400 TTL series.

### Q: How do 134 series parts relate to the 7400 series?
A: The 134 series is explicitly based on the 7400 series. That relation indicates the 134 family implements TTL logic functions modeled after the 7400-series designs.

### Q: What packaging do 134 series ICs use?
A: The 134 series uses flatpack packaging.

### Q: Under what naming or designation do these parts appear?
A: They comply with the Soviet integrated circuit designation system and are also known by aliases such as 54L and 74L.

## Why It Matters
The 134 series represents a concrete example of how TTL logic families were implemented within the Soviet electronics ecosystem. By being based on the widely known 7400 series, the 134 family connects Soviet integrated-circuit practice to an established TTL architecture, allowing designers and engineers in the USSR to adopt or adapt standard TTL logic functions within the constraints and conventions of Soviet manufacturing and designation. Compliance with the Soviet integrated circuit designation system and the use of common packaging (flatpack) reflect industrial-standard practices, enabling cataloging, procurement, and integration into Soviet hardware. As a subclass of TTL integrated circuits, the 134 series is part of the broader historical lineage of logic families that underpinned digital electronics; its documented presence (including a Commons image and category) preserves technical and identification details useful for research, restoration, and comparison with contemporaneous series such as the 7400 family.

## Notable For
- Being a Soviet series that implements transistor–transistor logic (TTL).
- Explicitly based on the 7400 series of TTL integrated circuits.
- Use of flatpack packaging common to the series.
- Compliance with the Soviet integrated circuit designation system.
- Known aliases include 54L and 74L.

## Body
### Overview
- 134 series integrated circuits are identified as a series of Soviet TTL logic integrated circuits.
- The series is recorded as an instance_of an integrated circuit series and as a subclass_of both transistor–transistor logic and integrated circuit.

### Classification and Relationships
- Based_on: 7400 series (a well-known TTL integrated circuit family).
- Complies_with: Soviet integrated circuit designation.
- Aliases: 54L, 74L.
- Instance_of: integrated circuit series.
- Subclass_of: transistor–transistor logic; integrated circuit.

### Physical and Packaging Details
- Uses: Flatpack (specified packaging format for the series).

### Identification and Resources
- Image: https://commons.wikimedia.org/wiki/Special:FilePath/134ИД6_Гамма.jpg (Commons).
- Commons category: 134 series integrated circuits.
- Wikidata description: "series of Soviet TTL logic circuits."
- Sitelink_count property: 1 (structured metadata).

### Contextual Link to 7400 Series
- The 7400 series is a family of transistor–transistor logic integrated circuits; its documented inception entries include 1964 (SN5400) and 1966 (SN7400) as historical reference points for the TTL family that served as the basis for the 134 series.

### Metadata
- Country of origin: Soviet Union.
- Structured properties include compliance with Soviet designation and categorization on Commons.

### References and Resources
- Commons image and category linked above provide visual and cataloging resources for identification of 134 series devices.