Texas Instruments PCA9306, User Manual, Page: 2 / 13

Introduction
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2 SCPU039 – October 2018
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Copyright © 2018, Texas Instruments Incorporated
PCA9306 I
2
C Buffer Evaluation Module
1 Introduction
The PCA9306EVM allows designers to evaluate device performance for I2C translation for their system.
This EVM allows the designer to evaluate the PCA9306 with different pullup resistor values and with
different capacitive loading. The PCA9306EVM has a PCA9306 loaded at U1. It also supports the use of a
socket for when multiple parts need to be tested. For additional details on I
2
C buffer performance,
application notes, and the data sheet, see www.ti.com/I2C .
1.1 Overview
The PCA9306 is a dual-channel bidirectional translator intended for I2C bus and SMBus/PMBus
systems. The PCA9306 provides bidirectional level shifting between two voltage nodes.
Figure 1
shows the PCA9306EVM.
Figure 1. PCA9306EVM
1.2 EVM Features
This EVM has the following features:
• VDPU1 input voltage range: 1.2V to 5.5V
• VDPU2 input voltage range: 1.8V to 5.5V
• Access to VDPU1, VDPU2, EN, SDA1, SCL1, SDA2, and SCL2 pins
• Footprint for a socket for evaluating multiple PCA9306 devices
• Footprints to test different capacitive loads
• Footprints to test different pullup resistor values
• Different load options allow for the testing of different translator configurations