Digital Logic Information

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Glue Logic Families




Glue Logic Family Listing
{name definitions for different logic families [TTL, CMOS, and ECL]. Logic family acronyms definition.}

How do I know which Glue Logic family to use
{Descriptions of switching speeds and switching level for each of the Glue Logic Families. Also indicates Noise Margins and Fan Outs.}

Integrated Circuit Company Prefix Listing
{Company Part Number [Letter] prefix to manufacturers translation}

IC Voltage Switching Levels

Logic Voltage Threshold Chart
{TTL / CMOS Logic [transition] Input and Output [I/O] logic switching levels chart}

Low Voltage Logic Threshold Chart
{Low Voltage TTL / CMOS [transition] Input and Output [I/O] logic switching levels chart}

Interface Logic Voltage Threshold Chart
{RS232 / RS422 Logic [transition] Input and Output [I/O] logic switching levels chart}

Voltage Translation between Logic Families
{Interfacing between different devices from different families. Glue Logic Voltage Translation between; TTL / CMOS / ECL}

Glue Logic Family Characteristics

IC Speed vs. Power Chart
{TTL / CMOS Glue Logic Family Chart comparing switching speed and power dissipation}

Device Slew Rate
{Description of rate of change on device output, and slow rise times}

Logic Family Noise Margin
{A table of the different Noise Margins for each logic family type}

Glue Logic IC Propagation Delay
{IC Propagation Delay definition, and how to avoid a logic issue}

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Glue Logic Design Methods

PWB Trace Termination Schemes
{Resistor (Bus) Trace Termination methods. How To Terminate Traces}

Glue Logic IC Resistor Pull-Up values
{Determine how to calculate resistor pull-up values for inputs or outputs}

How do I figure timing for Glue Logic
{The basics of Logic Timing, still in the works..}

Integrated Circuit Company Prefix Listing
{Company Part Number [Letter] prefix to manufacturers translation}

Logic Family Prefix Listing
{Part Number prefix to IC Operational Temperature Range}

IC Package Type Definitions
{A short list of IC pack types}

VHDL Code Examples
{1 Mux, 1 Adder, 1 State Machine (small), 7 Flip Flop examples}

VHDL Pitfalls
{How to not code}

Ground and Power Planes
{Design Links and information}

Glue Logic Heat Issues

Derating Electronic Components Description
{How to De-Rate component specifications based on Temperature Rise}

PWB External Etched Copper Current Capacity Chart

PWB Internal Etched Copper Current Capacity Chart

AWG Copper Cable Sizes
{Table of AWG cable size vs. resistance, weight, current, Ampacity}

AWG Aluminum Cable Sizes
{Table of AWG cable size vs. resistance, weight, current, Ampacity}

Heat Transfer
{Thermal Links, Thermal Conductivity Table}

Digital Logic Pitfalls

Logic metastability
{metastability Equations data and charts for different logic types}

Glue Logic Timing Hazards
{Static Hazard and Dynamic Hazard definition, and how to avoid}

Digital Logic Noise and EMI Issues
{Board induced noise, IC noise, and Jitter issues and how to avoid them}

PWB Trace Termination Schemes
{Resistor (Bus) Trace Termination methods}

Military Standards

MIL-PRF-38535E - General Specification for Integrated Circuits (Microcircuits) Manufacturing
MIL-STD-883 - Test Method Standard, Microcircuits
MIL-HDBK-1331 - Handbook for Parameters to be Controlled for the Specification of Microcircuits
MIL-M-38510J - General Specification for Microcircuits
MIL-STD-1835C - Electronic Component Case Outlines
MIL-M-55565C - Microcircuits, Packaging of
MIL-STD-1285C - Marking of Electrical and Electronic Parts
MIL-M-63530 - Microcircuit Digital, CMOS, (Logic)
MIL-HDBK-279 - Total-Dose Hardness Assurance Guidelines for Semiconductor Devices and Microcircuits
MIL-HDBK-5561A - List of Standard Semiconductor Devices
Systems Data - Military Specifications page

DOD sites with MIL Specs on the web: stinet [address keeps changing]

{Electronic Index}


Passive Component Information




Component Chip Sizes (Surface Mount)
{L x W size Table, Surface Mount Resistor and Capacitor Dimensions}

Resistor Information
{1% and 5% Standard Resistor Values, Chip Sizes, Ring Band/Colors}

Capacitor Information
{Capacitor Layout Information, Dielectric Material, Temperature Range}

Potentiometer Information
{Example Resistor Shunt Design, Potentiometer types and characteristics}

RC Time Constant
{Rising Voltage Graph and Equation}

RC Time Constant
{Falling Voltage Graph and Equation}

Op Amp - Compensation Design Information
{Notes on how to compensate for board/load capacitance}

Copper Wire Sizes
{Copper wire Diameter vs available current it can carry}

Aluminum Wire Sizes
{Aluminum wire Diameter vs available current it can carry}

Wire Insulation Color Codes
{Color coding of wire insulation based on application to indicate wire function or applied voltage}

Component Derating Guide lines
{Design Links Derating Curves and information}

Printed Wiring Board Links
{PWB information, links and standards}

{Electronic Logic Index}


Industrial Bus - Card Sizes / Form Factor

VME / VXI Card Size(s): Detailed VMEbus / VXIbus information and manufacturer listings

PC-104 Board Size: Detailed PC104 information and manufacturer listings

Compact PCI Board Size: Detailed cPCI Bus information and manufacturer listings

Personal Computer PC-AT Physical Card Size

Use this link for detailed PC Bus information and manufacturer listings.
In many cases additional card views, with drawings in more detail, may be found on the specific bus page.

{Electronic Logic Index}


Additional Design Data

D/A LSB Values {Reference table for 2n states and LSB values}

Modem Design Information {Modem Specifications, V.* Specs, IC Manufacturers, Connector Manufacturers ....}

VHDL Coding Information {VHDL Links to other pages}

Electronic Engineering Dictionaries and Acronyms {Engineering Terms and Definitions, Glossaries, Charts and Acronyms}

Wire Insulation Color Codes {Color coding of wire insulation based on application or applied voltage}

Dictionary of Electrical Engineering Terms
Equipment and Systems
Components and Parts
Equipment Chassis Terms Cable Terms
Antenna Terms Capacitor Terms
Radar Terms Diode Terms
Signal Encoding Terms Resistor Terms
Communication Protocol Terms Transformer Terms
Interface Bus Terms Transistor Terms
Electrostatic Discharge Terms IC Packaging Terms
Space Radiation Terms Printed Wiring Board Terms
Programmable Logic Device Terms Programmable Logic Element Terms


PC motherboard
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Modified: 2/1/12
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