SCLS761
February 2020
SN74HCS21-Q1
PRODUCTION DATA.
1
Features
2
Applications
3
Description
Device Images
Benefits of Schmitt-trigger Inputs
4
Revision History
5
Pin Configuration and Functions
Pin Functions
6
Specifications
6.1
Absolute Maximum Ratings
6.2
ESD Ratings
6.3
Recommended Operating Conditions
6.4
Thermal Information
6.5
Electrical Characteristics
6.6
Switching Characteristics
6.7
Typical Characteristics
7
Parameter Measurement Information
8
Detailed Description
8.1
Overview
8.2
Functional Block Diagram
8.3
Feature Description
8.3.1
Balanced CMOS Push-Pull Outputs
8.3.2
CMOS Schmitt-Trigger Inputs
8.3.3
Clamp Diode Structure
8.4
Device Functional Modes
9
Application and Implementation
9.1
Application Information
9.2
Typical Application
9.2.1
Design Requirements
9.2.1.1
Power Considerations
9.2.1.2
Input Considerations
9.2.1.3
Output Considerations
9.2.2
Detailed Design Procedure
9.2.3
Application Curves
10
Power Supply Recommendations
11
Layout
11.1
Layout Guidelines
11.2
Layout Example
12
Device and Documentation Support
12.1
Documentation Support
12.1.1
Related Documentation
12.2
Related Links
12.3
Community Resources
12.4
Trademarks
12.5
Electrostatic Discharge Caution
12.6
Glossary
13
Mechanical, Packaging, and Orderable Information
Package Options
Mechanical Data (Package|Pins)
PW|14
MPDS360A
D|14
MPDS177H
Thermal pad, mechanical data (Package|Pins)
Orderable Information
scls761_oa
scls761_pm
1
Features
AEC-Q100 Qualified for automotive applications:
Device temperature grade 1: –40°C to +125°C, T
A
Device HBM ESD Classification Level 2
Device CDM ESD Classifcation Level C6
Wide operating voltage range: 2 V to 6 V
Schmitt-trigger inputs allow for slow or noisy input signals
Low power consumption
Typical I
CC
of 100 nA
Typical input leakage current of ±100 nA
±7.8-mA output drive at 5 V