# Intel 8749
**Wikidata**: [Q12021711](https://www.wikidata.org/wiki/Q12021711)  
**Source**: https://4ort.xyz/entity/intel-8749

## Summary
The Intel 8749 is an 8-bit microprocessor released by Intel in 1976 as part of the MCS-48 family. Designed for embedded systems, it integrated memory and processing capabilities on a single chip, making it a cost-effective solution for industrial and consumer applications. It operated at 1 MHz and featured 64 bytes of RAM and 1 KB of ROM.

## Key Facts
- Released in 1976 as part of Intel's MCS-48 microcontroller family.
- 8-bit architecture with a clock speed of 1 MHz.
- Contained 64 bytes of on-chip RAM and 1 KB of on-chip ROM.
- Packaged in a 27-pin plastic or ceramic dual in-line package (DIP).
- Widely used in embedded systems, including automotive, telecommunications, and industrial control devices.
- Subclass of Intel microprocessors, categorized under programmable logic devices.
- Featured in Czech and Slovak Wikipedia entries (2 sitelinks).
- Google Knowledge Graph ID: `/g/120qkbcr`.

## FAQs
### Q: When was the Intel 8749 released?
A: The Intel 8749 was released in 1976 as part of Intel's MCS-48 family of microcontrollers.

### Q: What was the primary use of the Intel 8749?
A: It was designed for embedded systems, serving applications in automotive, industrial control, and consumer electronics due to its integrated memory and low power consumption.

### Q: What are key specifications of the Intel 8749?
A: It featured an 8-bit architecture, 1 MHz operating speed, 64 bytes of RAM, 1 KB of ROM, and a 27-pin DIP package.

## Why It Matters
The Intel 8749 played a pivotal role in advancing embedded systems by integrating processing, memory, and input/output components on a single chip. Released in 1976, it reduced design complexity and costs for manufacturers, enabling the development of efficient, specialized devices in automotive, telecommunications, and industrial sectors. As one of the earliest single-chip microcontrollers, it helped transition the industry from discrete circuit designs to more compact, reliable, and scalable solutions. Its architecture influenced subsequent microcontroller designs, cementing its legacy in the evolution of programmable logic devices.

## Notable For
- First microcontroller in Intel's MCS-48 family, establishing a foundational architecture for embedded systems.
- Integrated on-chip RAM and ROM, reducing the need for external memory components.
- Low power consumption and durability, making it suitable for harsh industrial environments.
- Versatility in applications, from simple control systems to early smart devices.

## Body
### Overview
The Intel 8749, introduced in 1976, was a programmable microcontroller designed for embedded applications. It combined a central processing unit (CPU), memory, and input/output (I/O) peripherals on a single chip, streamlining design processes for engineers.

### Architecture
- **8-bit CPU**: Executed instructions at 1 MHz, typical for microprocessors of its era.
- **Memory**: 64 bytes of on-chip RAM for data storage and 1 KB of ROM for program instructions.
- **Package**: 27-pin DIP, a standard form factor for microcontrollers in the 1970s and 1980s.

### Release and Legacy
- Part of the MCS-48 family, which included variants like the 8048 and 8051.
- Succeeded by more advanced microcontrollers but remained in use for legacy systems due to its reliability.

### Technical Specifications
- **Clock Speed**: 1 MHz.
- **RAM**: 64 bytes.
- **ROM**: 1 KB (mask-programmed or EPROM variants).
- **I/O**: 27 pins supporting digital I/O, interrupts, and serial communication.

### Applications
- **Industrial Control**: Used in machinery automation and process control systems.
- **Consumer Electronics**: Found in early smart appliances and entertainment devices.
- **Automotive**: Managed engine control, dashboard systems, and safety features in vehicles.