PCA9306DQER

Translators, Level Shifters Overview

The PCA9306DQER is a dual bidirectional I2C and SMBus voltage-level translator manufactured by Texas Instruments. It operates with VREF1 ranging from 1.2 V to 3.3 V and VREF2 from 1.8 V to 5.5 V. The device features an enable (EN) input, low on-state resistance of 3.5 Ω typical, and propagation delays under 1.5 ns. It supports mixed-mode signal operation with 5-V tolerant I/O ports and provides high-impedance isolation when disabled.

Translators, Level Shifters Feature Summary

• Bidirectional translation between low-voltage and high-voltage domains without requiring a direction pin
• Low on-state resistance minimizes signal distortion during data transfer
• High-impedance state isolates ports when the enable input is low
• Open-drain I/O ports compatible with standard I2C and SMBus protocols

Translators, Level Shifters Applications

• Servers
• Routers and telecom switching equipment
• Personal computers
• Industrial automation systems

Translators, Level Shifters Procurement Notes

Verify that the DQE suffix corresponds to the X2SON package type as specified in the datasheet. Confirm the operating temperature range meets system requirements. Ensure supply voltages remain within the recommended limits for both reference pins to prevent latch-up or damage.

Translators, Level Shifters Selection Notes

Select this component for applications requiring bidirectional level shifting between 1.2 V and 5.5 V domains. Consider the X2SON package size for space-constrained designs. Verify bus capacitance limits do not exceed specifications when connecting multiple devices.

Translators, Level Shifters Part Context

This part belongs to the PCA9306 family of voltage translators. It is designed for mixed-mode I2C applications where different voltage levels must be bridged. The device integrates two independent channels for SCL and SDA lines.

Translators, Level Shifters Replacement Considerations

Check for other packages in the PCA9306 family such as DCUR or YZTR if pin compatibility differs. Ensure substitute parts support the same voltage ranges and package dimensions.