Editorial Technical Reference

Logic Gate Array

This page explains how Logic Gate Array is classified within Computer, Electronic and Optical Product Manufacturing. Technical values and manufacturer relationships are research references; confirm the current specification and supplier evidence for each order.

Technical Definition & Core Assembly

An integrated circuit containing multiple logic gates arranged in a configurable array to implement digital logic functions.

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Product Specifications

Technical details and manufacturing context for Logic Gate Array

Definition
A logic gate array is a fundamental component within protection logic systems, consisting of multiple interconnected logic gates (AND, OR, NOT, NAND, NOR, XOR, XNOR) fabricated on a single semiconductor chip. Within protection logic, it processes input signals from sensors and monitoring devices to execute predetermined logical operations that determine when protective actions (such as shutdowns, alarms, or safety interlocks) should be triggered based on specific combinations of fault conditions. The array is configurable, allowing the user to program the interconnections and gate functions to suit the specific logic requirements of the application. Typical parameters include a supply voltage of 3.3–5 V, propagation delay of 5–15 ns per gate, maximum clock frequency of 100–400 MHz, and a configurable array size of 1000–100,000 logic gates. The listed operating temperature range is -40 to 85 °C for this directory reference and must be confirmed for the specific device grade. IEC 60068-2-1 and IEC 60068-2-2 are cold and dry-heat test methods; they do not establish this range. Input/output voltage levels are compatible with TTL/CMOS (3.3–5 V, per JEDEC JESD8C and JESD8-7). Power consumption ranges from 0.5 to 2.5 W at maximum frequency. The device is available in surface-mount packages (QFP-100 to QFP-256, per JEDEC MS-026 and MS-034) with a user-configurable I/O count of 64–200 pins. ESD tolerance is 2000–8000 V (human body model, per IEC 61000-4-2). Materials used include silicon, copper, aluminum, silicon dioxide, and polymer encapsulant. These values are directory reference ranges; verify model-specific values and standards with the legal manufacturer or supplier.
Working Principle
The logic gate array operates by receiving binary input signals (typically 0V for logic LOW and a defined voltage, e.g., 3.3V or 5V, for logic HIGH) from various system sensors. These inputs are routed through the internal network of configurable logic gates according to a predefined truth table or programmed configuration. The gates perform Boolean logic operations on these inputs. The resulting output signals from the array are binary decisions that directly command protection system actuators, such as circuit breakers, safety relays, or alarm indicators, to engage or disengage based on the evaluated logical conditions.
Common Materials
Silicon, Copper, Aluminum, Silicon Dioxide, Polymer Encapsulant
Technical Parameters
ParameterTypical rangeNotes & selection driver
Supply Voltage3.3–5 VOperating range for standard logic families
Propagation Delay5–15 nsPer gate; lower is faster
Maximum Clock Frequency100–400 MHzDepends on configuration and load
Number of Logic Gates1000–100000 gatesConfigurable array size
Operating Temperature-40–85 °CIndustrial grade
Input/Output Voltage Level3.3–5 VCompatible with TTL/CMOSJEDEC JESD8C, JESD8-7
Power Consumption0.5–2.5 WAt maximum frequency
Package TypeQFP-100–QFP-256 pinSurface mountJEDEC MS-026, MS-034
I/O Count64–200 pinsUser-configurable
ESD Tolerance2000–8000 VHuman body modelIEC 61000-4-2

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM
  • Input Buffer Part
    Conditions and standardizes incoming digital signals from external sensors to voltage levels compatible with the internal logic gates.
    Material: Silicon (transistors)
  • Configurable Logic Block (CLB) Part
    The core unit containing a set of basic logic gates (look-up tables, flip-flops) that can be interconnected to implement specific Boolean functions.
    Material: Silicon (transistors)
  • Interconnect Matrix
    A network of programmable switches and wiring that routes signals between different logic blocks and input/output buffers according to the protection logic design.
    Material: Copper, Aluminum
  • Output Driver
    Amplifies the logic-level output signals from the internal gates to a strength sufficient to drive external protection actuators like relays or indicator LEDs.
    Material: Silicon (transistors)
  • Configuration Memory Part
    Stores the bitstream that defines the interconnection and function of the logic blocks, programming the array for its specific protective role.
    Material: Silicon (flash/SRAM cells)

Application & selection

Application Fit & Sizing Matrix

Operational Limits
voltage: 1.8V to 5.5V operating range, 7V absolute maximum
temperature: -40°C to +85°C (industrial grade), -55°C to +125°C (military grade)
clock frequency: Up to 500 MHz depending on configuration
power dissipation: 100 mW to 2W depending on gate utilization
Media Compatibility
✓ Digital control systems ✓ Signal processing circuits ✓ Embedded computing applications
Unsuitable: High-voltage power switching environments (>50V)
Sizing Data Required
  • Required number of logic gates/function complexity
  • Operating clock frequency/speed requirements
  • Power budget/thermal constraints

Risk, maintenance & compliance

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Thermal stress cracking
Cause: Repeated thermal cycling from power on/off cycles causing differential expansion between silicon substrate and packaging materials, leading to micro-cracks in solder joints and interconnects
Electromigration
Cause: High current density through microscopic conductive paths causing gradual displacement of metal atoms, eventually leading to open circuits or short circuits between adjacent conductors
Maintenance Indicators
  • Intermittent or erratic system behavior under normal operating conditions
  • Abnormal heat generation detected via thermal imaging or touch (surface temperature exceeding manufacturer specifications)
Engineering Tips
  • Implement controlled power sequencing and soft-start circuits to minimize thermal shock during startup/shutdown cycles
  • Maintain clean, stable power supply with proper filtering and voltage regulation to prevent electrical overstress and reduce electromigration effects

Indicative industry ranges for design and RFQ preparation. Confirm the exact figures and applicable standard with the manufacturer before specifying.

Compliance & Manufacturing Standards

Applicable Standards
IEC 60747-14-1:2020 - Semiconductor devices - Discrete devices - Part 14-1: Semiconductor sensors - Generic specification EN 60749-1:2002 - Semiconductor devices - Mechanical and climatic test methods

Quoted from the published standard.

Manufacturing Precision
  • Gate propagation delay: +/- 0.5 ns
  • Power supply voltage tolerance: +/- 5%
Quality Inspection
  • Automated Optical Inspection (AOI) for solder joints and component placement
  • Functional test with boundary scan (JTAG) for logic verification
Technical documentation
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Manufacturing capability
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Inspection readiness
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Manufacturers of Logic Gate Array

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Frequently Asked Questions

What is a logic gate array used for?

A logic gate array is used in protection logic systems to process sensor signals and execute Boolean operations that determine when protective actions like shutdowns or alarms should be triggered.

What are the typical supply voltage and temperature range?

The typical supply voltage is 3.3–5 V, and the operating temperature range is -40 to 85 °C (industrial grade). Verify exact values for the specific model.

Can the logic functions be reconfigured?

Yes, the array is user-configurable, allowing the interconnections and gate functions to be programmed to meet specific logic requirements.

What standards are referenced for this component?

IEC 60068-2-1 and IEC 60068-2-2 are cold and dry-heat test methods; they do not set the listed operating-temperature range. JEDEC JESD8C and JESD8-7 are verification references for I/O levels, JEDEC MS-026 and MS-034 for packages, and IEC 61000-4-2 for ESD immunity testing. These references are not proof of model compliance.

Data basis: editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Related equipment

Applied To / Applications

This component is essential for the following industrial systems and equipment:

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Arithmetic Logic Unit (ALU)
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Industrial Ecosystem & Supply Chain Structure

Specialized Tooling

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review · Page last updated 12 October 2026

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