# Hitachi 6309

> hitachi variant of the Motorola 6809 8-bit microprocessor

**Wikidata**: [Q3491676](https://www.wikidata.org/wiki/Q3491676)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Hitachi_6309)  
**Source**: https://4ort.xyz/entity/hitachi-6309

## Summary  
The Hitachi 6309 (also known as HD6309) is Hitashi’s clone of Motorola’s 6809 8‑bit microprocessor. It belongs to the Motorola 6800 family and implements an 8‑bit instruction set as an integrated‑circuit microprocessor model.

## Key Facts  
- **Variant**: Hitachi 6309 is a direct variant of the Motorola 6809 microprocessor.  
- **Family**: It is part of the Motorola 6800 family of microprocessors.  
- **Architecture**: Implements an 8‑bit instruction set for 8‑bit computing.  
- **Classification**: Listed as an *integrated circuit model* and a *clone* of the original 6809.  
- **Aliases**: Also known as **HD6309** and Arabic script **هيتاشي ٦٣٠٩**.  
- **Image**: A representative photograph is available at `https://commons.wikimedia.org/wiki/Special:FilePath/HD63C09EP.jpg`.  
- **Wikidata entry**: Identified by the title **Hitachi 6309** and description “hitachi variant of the Motorola 6809 8-bit microprocessor”.  
- **Sitelinks**: The entry links to six language versions (English, Spanish, Hungarian, Polish, Portuguese, and Commons).  

## FAQs  
### Q: What is the Hitachi 6309?  
A: The Hitachi 6309 is Hitashi’s 8‑bit microprocessor that clones the Motorola 6809, retaining the same instruction set and belonging to the Motorola 6800 family.  

### Q: How does the Hitachi 6309 differ from the original Motorola 6809?  
A: It is classified as a *clone*—functionally compatible with the 6809—but is produced by Hitashi rather than Motorola. No additional specifications are provided beyond its clone status.  

### Q: What type of computing does the Hitachi 6309 support?  
A: It supports **8‑bit computing**, using an 8‑bit instruction set typical of the Motorola 6800 series.  

## Why It Matters  
The Hitachi 6309 matters because it extends the reach of the Motorola 6809 architecture through a licensed or compatible implementation by Hitashi. By offering a clone that adheres to the same 8‑bit instruction set, the 6309 enables hardware designers and hobbyists to source a functionally equivalent processor from an alternative manufacturer, potentially improving supply chain resilience and cost options. Its inclusion in the broader Motorola 6800 family situates it within a historically influential line of microprocessors that powered early personal computers, embedded systems, and industrial controllers. For anyone studying the evolution of 8‑bit microprocessors or maintaining legacy hardware, the Hitachi 6309 provides a tangible example of cross‑company compatibility and the diffusion of a successful CPU design across multiple vendors.

## Notable For  
- Being a **clone** of the widely used Motorola 6809.  
- Maintaining the **8‑bit instruction set** of the original while being produced by Hitashi.  
- Inclusion in the **Motorola 6800 family**, linking it to a seminal series of microprocessors.  
- Recognized under multiple **aliases** (HD6309, هيتاشي ٦٣٠٩).  
- Documented across several language Wikipedias and Wikimedia Commons, indicating broad historical interest.

## Body  

### Overview  
- The Hitachi 6309 is an integrated‑circuit microprocessor model.  
- It is explicitly described as a “hitachi variant of the Motorola 6809 8‑bit microprocessor.”  

### Architecture & Instruction Set  
- Implements an **8‑bit computing** instruction set, identical to that of the Motorola 6809.  
- Classified under the **microprocessor** subclass, confirming its role as a central processing unit on a single chip.  

### Relationship to Motorola 6809  
- **Based on** the Motorola 6809 (Wikidata item Q1545600).  
- Designated as a **clone**, indicating functional compatibility without alteration of the core instruction set.  

### Placement in the Motorola 6800 Family  
- The 6309 is a **part_of_series** entry for the Motorola 6800 family, linking it to the broader lineage of 8‑bit CPUs introduced in the 1970s.  

### Naming and Identification  
- Official **Wikipedia title**: *Hitachi 6309*.  
- **Aliases** include **HD6309** and the Arabic transliteration **هيتاشي ٦٣٠٩**.  
- The **Freebase ID** `/m/03mg6` references an external identifier used for data integration.  

### Documentation and Media  
- A visual representation is hosted on Wikimedia Commons: `HD63C09EP.jpg`.  
- The entry has **six sitelinks**, covering English, Spanish, Hungarian, Polish, Portuguese, and Commons pages, reflecting multilingual documentation.  

### Classification Summary  
- **Instance of**: integrated circuit model, clone.  
- **Subclass of**: microprocessor.  
- **Part of series**: Motorola 6800 family.  

These facts collectively define the Hitachi 6309 as a historically relevant, 8‑bit microprocessor clone that extends the legacy of the Motorola 6809 within the broader 6800 family.

## References

1. Freebase Data Dumps. 2013