# MOS Technology 6532

> integrated circuit

**Wikidata**: [Q908836](https://www.wikidata.org/wiki/Q908836)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/MOS_Technology_6532)  
**Source**: https://4ort.xyz/entity/mos-technology-6532

## Summary
The MOS Technology 6532 is an integrated circuit, also known as RIOT (RAM, I/O, Timer), designed by MOS Technology. It combines a 128-byte RAM, parallel I/O ports, and a programmable timer, making it a versatile chip for early microcomputers and embedded systems.

## Key Facts
- **Aliases**: RIOT, MOS 테크놀로지 6532
- **Instance of**: Integrated circuit
- **Wikipedia presence**: Available in 7 languages (de, en, es, it, ja, ko, pl)
- **Wikidata description**: Integrated circuit
- **Freebase ID**: /m/08lg9m (referenced by Wikidata)
- **Sitelink count**: 7 (indicating cross-language Wikipedia coverage)

## FAQs
### Q: What was the MOS Technology 6532 used for?
A: The 6532 was primarily used as a support chip for the MOS Technology 6502 microprocessor, providing RAM, I/O ports, and a timer for early microcomputers like the Commodore PET and Apple II.

### Q: What does "RIOT" stand for?
A: RIOT is an acronym for RAM, I/O, Timer, reflecting the chip's integrated functions.

### Q: Is the MOS Technology 6532 still in production?
A: No, the 6532 is an obsolete chip from the 1970s, no longer manufactured.

## Why It Matters
The MOS Technology 6532 played a crucial role in early microcomputers by combining essential peripherals into a single chip. Its inclusion of RAM, I/O ports, and a timer reduced the complexity of system design, allowing developers to focus on software rather than hardware. While now obsolete, the 6532 represents a foundational component in the evolution of personal computing, influencing the architecture of later systems.

## Notable For
- **First integrated RAM, I/O, and timer**: The 6532 was one of the first chips to combine these functions, simplifying early microcomputer designs.
- **Compatibility with 6502**: It was designed to work seamlessly with the MOS Technology 6502 microprocessor, a key component of the Apple II and Commodore PET.
- **Obsolete but historically significant**: Though no longer in production, the 6532 remains a key example of early semiconductor integration.

## Body
### Design and Functionality
The MOS Technology 6532 integrates a 128-byte static RAM, two 8-bit parallel I/O ports, and a 16-bit programmable timer. These features were essential for early microcomputers, reducing the need for separate chips and minimizing system complexity.

### Historical Context
The 6532 was released alongside the 6502 microprocessor, forming the core of early microcomputer systems. It was widely used in machines like the Commodore PET and Apple II, demonstrating the power of integrated circuit design in the 1970s.

### Obsoleteness
The 6532 is no longer manufactured, having been replaced by more advanced integrated circuits. However, its design remains a benchmark for early semiconductor integration and microcomputer architecture.

## References

1. Freebase Data Dumps. 2013