Menu
Product
Email
PDF
Order now
TCA39306-Q1 Dual Bidirectional I3C, I2C Bus and SMBus Voltage-Level Translator
SCPS239B
June 2021 – October 2023
TCA39306-Q1
PRODUCTION DATA
CONTENTS
SEARCH
TCA39306-Q1 Dual Bidirectional I3C, I2C Bus and SMBus Voltage-Level Translator
1
1
Features
2
Applications
3
Description
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 (Translating Down)
5.7
Switching Characteristics (Translating Up)
5.8
Switching Characteristics
5.9
Typical Characteristics
6
Parameter Measurement Information
7
Detailed Description
7.1
Overview
7.1.1
Definition of threshold voltage
7.1.2
Correct Device Set Up
7.1.3
Disconnecting a Target from the Main Bus Using the EN Pin
7.1.4
Supporting Remote Board Insertion to Backplane with TCA39306-Q1
7.1.5
Switch Configuration
7.1.6
Controller on Side 1 or Side 2 of Device
7.1.7
LDO and TCA39306-Q1 Concerns
7.1.8
Current Limiting Resistance on VREF2
7.2
Functional Block Diagram
7.3
Feature Description
7.3.1
Enable (EN) Pin
7.3.2
Voltage Translation
7.4
Device Functional Modes
8
Application and Implementation
8.1
Application Information
8.1.1
General Applications of I2C
8.2
Typical Application
8.2.1
Design Requirements
8.2.2
Detailed Design Procedure
8.2.2.1
Bidirectional Voltage Translation
8.2.2.2
Sizing Pullup Resistors
8.2.2.3
Bandwidth
8.2.3
Application Curve
8.3
Systems Examples: I3C Usage Considerations
8.3.1
I3C Bus Switching
8.3.2
I3C Bus Voltage Translation
8.4
Power Supply Recommendations
8.5
Layout
8.5.1
Layout Guidelines
8.5.2
Layout Example
9
Device and Documentation Support
9.1
Receiving Notification of Documentation Updates
9.2
Support Resources
9.3
Trademarks
9.4
Electrostatic Discharge Caution
9.5
Glossary
10
Revision History
11
Mechanical, Packaging, and Orderable Information
IMPORTANT NOTICE
Package Options
Mechanical Data (Package|Pins)
DCU|8
MPDS050E
Thermal pad, mechanical data (Package|Pins)
Orderable Information
scps239b_oa
scps239b_pm
search
No matches found.
Full reading width
Full reading width
Comfortable reading width
Expanded reading width
Card for each section
Card with all content
Data Sheet
TCA39306-Q1
Dual Bidirectional
I
3
C,
I
2
C Bus and SMBus Voltage-Level Translator
1
Features
AEC-Q100 Qualified for automotive applications
Functional Safety-Capable
Documentation available to aid in functional safety system design
2-Bit bidirectional translator for SDA and SCL lines in mixed-mode I
2
C applications
Standard-mode, fast-mode, and fast-mode plus I
2
C and SMBus compatible
I
3
C compatible (12.5 MHz supported)
Allows voltage-level translation between
0.9-V V
REF1
and 1.8-V, 2.5-V, 3.3-V,
or 5-V V
REF2
1.2-V V
REF1
and 1.8-V, 2.5-V, 3.3-V,
or 5-V V
REF2
1.8-V V
REF1
and 2.5-V, 3.3-V, or 5-V V
REF2
2.5-V V
REF1
and 3.3-V or 5-V V
REF2
3.3-V V
REF1
and 5-V V
REF2
Provides bidirectional voltage translation with no direction Pin
Low ON-state resistance between input and output ports provides less signal distortion
Open-drain I
2
C I/O ports (SCL1, SDA1, SCL2, and SDA2)
5-V Tolerant I
2
C I/O ports to support mixed-mode signal operation
High-impedance SCL1, SDA1, SCL2, and SDA2 pins for EN = Low
Lockup-free operation for isolation when EN = Low
Flow-through pinout for ease of printed-circuit-board trace routing
ESD Protection Exceeds JESD 22
2000-V human-body model (A114-A)
1000-V charged-device model (C101)
2
Applications
I
3
C,
I
2
C, SMBus, PMBus, MDIO, UART, low-speed SDIO, GPIO, and other two-signal interfaces
Servers
Routers
(telecom switching equipment)
Personal computers
Industrial automation
