Professional Courses
Industry-relevant training in Business, Technology, and Design to help professionals and graduates upskill for real-world careers.
Categories
Interactive Games
Fun, engaging games to boost memory, math fluency, typing speed, and English skillsβperfect for learners of all ages.
Typing
Memory
Math
English Adventures
Knowledge
Interactive Audio Lesson
Listen to a student-teacher conversation explaining the topic in a relatable way.
Introduction to SPLDs
Unlock Audio Lesson
Signup and Enroll to the course for listening the Audio Lesson
Today, we're diving into Simple Programmable Logic Devices, or SPLDs. Can anyone tell me what makes these devices important in digital electronics?
Are they used for simpler circuit designs compared to more complex devices?
Exactly! SPLDs are effective for implementing simpler digital circuits. They provide flexibility in design, which is crucial for various applications.
What are some common types of SPLDs?
Good question! Common types include Programmable Array Logic (PAL) and Generic Array Logic (GAL) devices. Now, can anyone remember what the main manufacturers of SPLDs are?
I think companies like AMD and Altera make SPLDs.
Correct! AMD, Altera, Philips-Signetics, and others are key players in this market. Letβs summarize: SPLDs are beneficial for simpler designs and are offered by several leading manufacturers.
Key SPLD Devices
Unlock Audio Lesson
Signup and Enroll to the course for listening the Audio Lesson
Now, let's discuss some popular SPLDs like the 16XX series from AMD and the 22V10 from Altera. Who can recall some features of the 16XX family?
They have a programmable AND array and fixed OR array, right?
Spot on! They're designed for sum-of-products implementation. Each device in this series varies in the number of outputs. Can anyone share an example?
The 16L8 and 16R8 are examples, which can replace several SSI/MSI circuits.
Great! And what about the 22V10? How does it differ?
The 22V10 can handle up to 22 inputs and has multiple output configurations!
Exactly! Each output can be either combinational or registered, which adds versatility in designs.
Applications of SPLDs
Unlock Audio Lesson
Signup and Enroll to the course for listening the Audio Lesson
Letβs explore the applications of SPLDs. Where do you think SPLDs might be effectively implemented?
They could be used in projects needing custom circuit solutions without going for complex FPGAs.
Exactly! SPLDs are perfect for prototyping and in applications where cost-effectiveness and simplicity are prioritized.
Could they be suitable for any consumer devices?
Absolutely! Many household electronics utilize SPLDs for their flexibility and low power consumption. To summarize, SPLDs are crucial for a wide range of applications due to their efficiency.
Introduction & Overview
Read a summary of the section's main ideas. Choose from Basic, Medium, or Detailed.
Quick Overview
Standard
SPLDs, such as PALs and GALs, are essential components in digital electronics. This section outlines various SPLD manufacturers, their unique features, and highlights specific devices like the 16XX series and 22V10, focusing on their architectures and applications.
Detailed
SPLDs - Simple Programmable Logic Devices
This section provides an overview of Simple Programmable Logic Devices (SPLDs) and examines their significant attributes, leading manufacturers, and common applications. SPLDs are a crucial part of programmable logic technology, particularly for simpler digital circuit designs.
Some renowned companies offering SPLDs include Advanced Micro Devices (AMD), Altera, Philips-Signetics, Cypress, and Lattice Semiconductor Corporation. These manufacturers provide a wide range of SPLD products, all sharing similarities in the nature of their programmable logic planes and configurable output logic. Notably, the 16XX series (including 16L8, 16R8, 16R6, and 16R4) from AMD and the 22V10 from Altera are especially commonplace and often second-sourced by other companies.
The 16XX family is known for employing a sum-of-products implementation, combining a programmable AND array with a fixed OR array, and it offers multiple PAL-type devices tailored to specific design requirements. Each device varies in the number of combinational and registered outputs, featuring three-state output buffers for individualized output control. The architecture of these devices is summarized in the associated figures, showcasing their pin connections and internal structures.
The 22V10 PAL device also features unique capabilities including a maximum of 22 inputs and 10 outputs, each capable of being configured for combinational or registered output, allowing for versatile designs in digital systems. The device is built on E2CMOS technology, enabling it to be reprogrammed while consuming less power than its bipolar counterparts.
This overview underlines the importance of SPLDs in the realm of digital electronics, as they provide efficient solutions for various project needs.
Audio Book
Dive deep into the subject with an immersive audiobook experience.
Introduction to SPLDs
Unlock Audio Book
Signup and Enroll to the course for listening the Audio Book
Some of the famous companies that offer SPLDs include Advanced Micro Devices (AMD), Altera, Philips-Signetics, Cypress, Lattice Semiconductor Corporation and ICT. A large range of SPLD products are available from these companies. All of these SPLDs share some common features in terms of the nature of the programmable logic planes, configurable output logic, etc. However, each of these logic devices does offer some unique features that make it particularly attractive for some applications.
Detailed Explanation
SPLDs, or Simple Programmable Logic Devices, are offered by several prominent technology companies. These devices are designed for digital circuit designs, providing flexibility in logic implementation. SPLDs are characterized by common features like programmable logic planes and configurable output logic. However, despite these similarities, different manufacturers create SPLDs with unique features tailored for specific applications, allowing designers to choose a device that best suits their needs.
Examples & Analogies
Think of SPLDs like different types of clothing made by various brands. While all pieces may serve the same purposeβkeeping you warmβthey come in diverse styles and features that cater to personal taste and specific occasions, making some brands more appealing based on individual needs.
Popular SPLDs and Their Characteristics
Unlock Audio Book
Signup and Enroll to the course for listening the Audio Book
Some of the widely exploited SPLDs include the 16XX series (16L8, 16R8, 16R6, and 16R4) and 22V10 from AMD and EP610 from Altera. These devices are also widely second-sourced by many companies. The Plus16XX series from Philips is 100% pin and functional compatible with the 16XX series. 16R8 in the 16XX series and 22V10 PAL devices are industry standards and are widely second-sourced.
Detailed Explanation
The 16XX series and 22V10 are notable examples of SPLDs that are commonly used in the industry. Designers prefer these devices for their reliability and compatibility with other hardware. The 16XX series includes models like 16L8 and 16R8, known for their programmability features, while the 22V10 offers additional functionality and ease of integration. These devices are also supported by multiple manufacturers, ensuring widespread availability and compatibility, which is highly valued in electrical design.
Examples & Analogies
Imagine selecting a smartphone model that is widely available and compatible with various accessories and applications. The 16XX series SPLDs work in a similar manner, providing designers with a choice of devices that can easily fit into different project specifications and existing systems, enhancing their versatility.
Architecture of the 16XX Series
Unlock Audio Book
Signup and Enroll to the course for listening the Audio Book
The 16XX family of PAL devices employs the familiar sum-of-products implementation comprising a programmable AND array and a fixed OR array. The family offers four PAL-type devices including 16L8, 16R8, 16R6, and 16R4. Each of the devices in the 16XX family is characterized by a certain number of combinational and registered outputs available to the designer. The devices have three-state output buffers on each output pin, which can be programmed for individual control of all outputs.
Detailed Explanation
The 16XX series SPLDs utilize a sum-of-products architecture with an adaptable AND gate arrangement. This flexibility allows for the design of complex logic circuits by programming the AND gates and providing a fixed OR gate functionality. Each device offers a distinct number of inputs and outputs, providing designers with options to choose based on their specific needs, whether they require more combinational outputs or registered outputs. The three-state output buffers also enable the control of outputs, making them more versatile in circuit designs.
Examples & Analogies
Think of the programmable AND array as a customizable recipe where you can choose which ingredients (inputs) to mix together. The fixed OR array outputs the result of that mixture. The flexibility of cooking allows for infinite variations, just like how designers can create unique devices tailored to specific project requirements using the 16XX series.
Features of 22V10 SPLD
Unlock Audio Book
Signup and Enroll to the course for listening the Audio Book
These are available in both bipolar and CMOS technologies. One such contemporary device is GAL22V10 from Lattice Semiconductor Corporation. As inherent in the type number, the device offers a maximum of 22 inputs and 10 outputs. The outputs are versatile. That is, each one of them can be configured by the user to be either a combinational or registered output. Also, the outputs can be configured to be either active HIGH or active LOW.
Detailed Explanation
The 22V10 SPLD is known for its flexibility and user configurability. With 22 inputs and 10 outputs, it provides designers with a robust platform for implementing complex logic functions. Users can select whether outputs operate as combinational logic outputs that change instantly or registered outputs that depend on a clock signal. Additionally, outputs can be set to operate as either active HIGH (outputting a high voltage when active) or active LOW, allowing for greater design versatility.
Examples & Analogies
Consider a smart home system where lights can be configured to either turn on when you press a switch (active HIGH) or turn on when you press a different switch (active LOW). Just like this smart system allows customization, the 22V10 SPLD gives designers the freedom to configure the outputs precisely how they need them.
Definitions & Key Concepts
Learn essential terms and foundational ideas that form the basis of the topic.
Key Concepts
-
SPLDs: Essential for implementing digital circuits in flexible and cost-effective ways.
-
PAL: A widely used SPLD variant that allows for custom logic configurations.
-
GAL: An advanced form of PAL offering improved functionalities.
Examples & Real-Life Applications
See how the concepts apply in real-world scenarios to understand their practical implications.
Examples
-
The 16XX series of devices from AMD can replace multiple traditional integrated circuits with a single PAL device.
-
The Altera 22V10 can flexibly configure outputs for either combinational or registered function tailored to the application.
Memory Aids
Use mnemonics, acronyms, or visual cues to help remember key information more easily.
π΅ Rhymes Time
-
For circuits that need a role, SPLDs take their toll.
π Fascinating Stories
-
Imagine a designer selecting from a shelf of SPLDs, where each device has unique capabilities, just like a chef picking ingredients to create the perfect dish.
π§ Other Memory Gems
-
PALS - Programmable And Logic Simplified.
π― Super Acronyms
SPLD - Simplified Programmable Logical Design.
Flash Cards
Review key concepts with flashcards.
Glossary of Terms
Review the Definitions for terms.
-
Term: SPLD
Definition:
Simple Programmable Logic Device, used for implementing digital circuits.
-
Term: PAL
Definition:
Programmable Array Logic, a type of SPLD with a programmable AND array and fixed OR array.
-
Term: GAL
Definition:
Generic Array Logic, an enhanced version of PAL that allows for more flexible implementations.
-
Term: E2CMOS
Definition:
Electrically erasable CMOS technology used in devices like the GAL22V10.
-
Term: AMD
Definition:
Advanced Micro Devices, a key manufacturer of SPLDs.
-
Term: Altera
Definition:
A well-known SPLD manufacturer recognized for its 22V10 device.