SCLS820A
August 2020 – December 2021
SN74HCS157-Q1
PRODUCTION DATA
1
Features
2
Applications
3
Description
4
5
4
Revision History
5
Pin Configuration and 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
Operating Characteristics
6.8
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
8.3.4
Wettable Flanks
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 Curve
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
Receiving Notification of Documentation Updates
12.3
Support 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|16
MPDS361A
BQB|16
MPQF539A
D|16
MPDS178G
Thermal pad, mechanical data (Package|Pins)
BQB|16
PPTD365
Orderable Information
scls820a_oa
scls820a_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
Available in
wettable flank
QFN (W
BQB
) package
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 6 V