SCAS293M
January 1993 – June 2026
SN74LVC240A
PRODUCTION DATA
1
1
Features
2
Applications
3
Description
5
6
4
Pin Configuration and Functions
5
Specifications
5.1
Absolute Maximum Ratings
5.2
ESD Ratings
5.3
Recommended Operating Conditions
5.4
Thermal Information
5.5
Electrical Characteristics
5.6
Switching Characteristics, –40°C to 85°C
5.7
Switching Characteristics, –40°C to 125°C
5.8
Operating Characteristics
5.9
Typical Characteristics
6
Parameter Measurement Information
7
Detailed Description
7.1
Overview
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Balanced CMOS 3-State Outputs
7.3.2
Partial Power Down (Ioff)
7.3.3
Standard CMOS Inputs
7.3.4
Clamp Diode Structure
7.4
Device Functional Modes
8
Application and Implementation
8.1
Application Information
8.2
Typical Application
8.2.1
Design Requirements
8.2.1.1
Power Considerations
8.2.1.2
Input Considerations
8.2.1.3
Output Considerations
8.2.2
Detailed Design Procedure
8.2.3
Application Curves
8.3
Power Supply Recommendations
8.4
Layout
8.4.1
Layout Guidelines
8.4.2
Layout Example
9
Device and Documentation Support
9.1
Documentation Support
9.1.1
Related Documentation
9.2
Receiving Notification of Documentation Updates
9.3
Support Resources
9.4
Trademarks
9.5
Electrostatic Discharge Caution
9.6
Glossary
49
10
Revision History
11
Mechanical, Packaging, and Orderable Information
8.2.2
Detailed Design Procedure
Recommended input conditions:
For rise time and fall time specifications, see Δt/Δv in the
Recommended Operating Conditions
table.
For specified high and low levels, see V
IH
and V
IL
in the
Recommended Operating Conditions
table.
Inputs and outputs are overvoltage tolerant and can therefore go as high as 5.5V at any valid V
CC
.
Recommended output conditions:
Load currents not exceeding ±50mA.
Frequency selection criterion:
The effects of frequency upon the device's power consumption should be studied in the
CMOS Power Consumption and CPD Calculation
application note
.
Added trace resistance and capacitance can reduce maximum frequency capability; follow the layout practices listed in the
Layout
section.