SCPS178C
July 2007 – April 2022
PCA9306-Q1
PRODUCTION DATA
1
Features
2
Applications
3
Description
4
Revision History
5
Description (continued)
6
Pin Configuration and Functions
7
Specifications
7.1
Absolute Maximum Ratings
7.2
ESD Ratings
7.3
Recommended Operating Conditions
7.4
Thermal Information
7.5
Electrical Characteristics
7.6
Switching Characteristics: Translating Down, VIH = 3.3 V
7.7
Switching Characteristics: Translating Down, VIH = 2.5 V
7.8
Switching Characteristics: Translating Up, VIH = 2.3 V
7.9
Switching Characteristics: Translating Up, VIH = 1.5 V
7.10
Typical Characteristics
8
Parameter Measurement Information
9
Detailed Description
9.1
Overview
9.1.1
Definition of threshold voltage
9.1.2
Correct Device Set Up
9.1.3
Disconnecting a Target from the Main I2C Bus Using the EN Pin
9.1.4
Supporting Remote Board Insertion to Backplane with PCA9306-Q1
9.1.5
Switch Configuration
9.1.6
Controller on Side 1 or Side 2 of Device
9.1.7
LDO and PCA9306-Q1 Concerns
9.1.8
Current Limiting Resistance on VREF2
9.2
Functional Block Diagram
9.3
Feature Description
9.3.1
Enable (EN) Pin
9.3.2
Voltage Translation
9.4
Device Functional Modes
10
Application and Implementation
10.1
Application Information
10.1.1
General Applications of I2C
10.2
Typical Application
10.2.1
Design Requirements
10.2.2
Detailed Design Procedure
10.2.2.1
Bidirectional Translation
10.2.2.2
Sizing Pullup Resistor
10.2.2.3
PCA9306-Q1 Bandwidth
10.2.3
Application Curves
11
Power Supply Recommendations
12
Layout
12.1
Layout Guidelines
12.2
Layout Example
13
Device and Documentation Support
13.1
Documentation Support
13.1.1
Related Documentation
13.2
Receiving Notification of Documentation Updates
13.3
Support Resources
13.4
Trademarks
13.5
Electrostatic Discharge Caution
13.6
Glossary
14
Mechanical, Packaging, and Orderable Information
2
Applications
I
2
C, SMBus, PMBus, MDIO, UART, low-speed SDIO, GPIO, and other two-signal interfaces
Automotive head units
Automotive instrument clusters
Automotive driver assistance cameras