SCLS392G April   1998  – February 2015 SN74LV86A

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Simplified Schematic
  5. 5 Revision History
  6. 6 Pin Configuration and Functions
  7. 7 Specifications
    1. 7.1  Absolute Maximum Ratings
    2. 7.2  ESD Ratings
    3. 7.3  Recommended Operating Conditions
    4. 7.4  Thermal Information
    5. 7.5  Electrical Characteristics
    6. 7.6  Switching Characteristics, VCC = 2.5 V ±0.2 V
    7. 7.7  Switching Characteristics, VCC = 3.3 V ±0.3 V
    8. 7.8  Switching Characteristics, VCC = 5 V ±0.5 V
    9. 7.9  Noise Characteristics for SN74LV86A
    10. 7.10 Operating Characteristics
    11. 7.11 Typical Characteristics
  8. 8 Parameter Measurement Information
  9. 9 Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
    4. 9.4 Device Functional Modes
  10. 10Application and Implementation
    1. 10.1 Application Information
    2. 10.2 Typical Application
      1. 10.2.1 Design Requirements
      2. 10.2.2 Detailed Design Procedure
      3. 10.2.3 Application Curve
  11. 11Power Supply Recommendations
  12. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
  13. 13Device and Documentation Support
    1. 13.1 Related Links
    2. 13.2 Trademarks
    3. 13.3 Electrostatic Discharge Caution
    4. 13.4 Glossary
  14. 14Mechanical, Packaging, and Orderable Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • D|14
  • DB|14
  • DGV|14
  • PW|14
  • NS|14
Thermal pad, mechanical data (Package|Pins)
Orderable Information

9 Detailed Description

9.1 Overview

The ’LV86A devices are quadruple 2-input exclusive-OR gates designed for 2-V to 5.5-V VCC operation.

These devices contain four independent 2-input exclusive-OR gates. They perform the Boolean function Y = A ⊕ B or Y = AB + AB in positive logic.

A common application is as a true/complement element. If one of the inputs is low, the other input is reproduced in true form at the output. If one of the inputs is high, the signal on the other input is reproduced inverted at the output.

9.2 Functional Block Diagram

An exclusive-OR gate has many applications, some of which can be represented better by alternative logic symbols.

SN54LV86A SN74LV86A exclusive_OR_CLS392.gif
A. These are five equivalent exclusive-OR symbols valid for an ’LV86A gate in positive logic; negation can be shown at any two ports.
Figure 4. Exclusive OR
SN54LV86A SN74LV86A element_logic_id_CLS392.gif
The output is active (low) if all inputs stand at the same logic level (that is, A = B).
Figure 5. Logic-Identity Element
SN54LV86A SN74LV86A element_even_par_CLS392.gif
The output is active (low) if an even number of inputs (that is, 0 or 2) are active.
Figure 6. Even-Parity Element
SN54LV86A SN74LV86A element_odd_par_CLS392.gif
The output is active (high) if an odd number of inputs (that is, only 1 of the 2) are active.
Figure 7. Odd-Parity Element

9.3 Feature Description

  • Wide operating voltage range, operates from 2 to 5.5 V
  • Allows down voltage translation, inputs accept voltages to 5.5 V

9.4 Device Functional Modes

Table 1. Function Table
(Each Gate)

INPUTS OUTPUT
Y
A B
L L L
L H H
H L H
H H L