PCA9306IDCURQ1

Translators, Level Shifters Overview

The PCA9306IDCURQ1 is a dual bidirectional I2C-bus and SMBus voltage-level translator featuring an enable input. It operates with Vref(1) from 1.0 V to 3.6 V and Vbias(ref)(2) from 1.8 V to 5.5 V, enabling translation between 1.0 V and 5 V without direction pins. The device supports standard-mode, fast-mode, and fast-mode plus I2C devices. It utilizes low on-state resistance switches for minimal propagation delay. The component is housed in an 8-pin VSSOP package and meets AEC-Q100 automotive qualification standards.

Translators, Level Shifters Feature Summary

• Dual bidirectional translation capability for I2C and SMBus protocols
• Low on-state resistance switch design for minimal signal propagation delay
• Automotive-grade reliability compliant with AEC-Q100 standards

Translators, Level Shifters Applications

• Bidirectional level shifting between 1.0 V and 5 V logic domains
• Connecting mixed-speed buses operating at different frequencies
• Enabling/disabling bus connectivity via external control signals

Translators, Level Shifters Procurement Notes

Verify the specific suffix IDCURQ1 against official Texas Instruments documentation to confirm automotive grade classification and package details. Ensure compatibility with target system voltage rails (1.0 V–3.6 V and 1.8 V–5.5 V). Confirm that pull-up resistors are correctly sized for the specific I2C speed requirements. Validate that the enable pin logic aligns with the host controller's output levels before finalizing procurement.

Translators, Level Shifters Selection Notes

Select this component when bidirectional translation between disparate voltage levels is required without active direction control. It is suitable for applications needing physical isolation only when disabled. Consider the propagation delay impact if the system operates near maximum frequency limits. Ensure the design accommodates separate pull-up resistors on both sides of the translator for proper high-level signaling.

Translators, Level Shifters Part Context

This part belongs to the PCA9306 family of voltage-level translators manufactured by Texas Instruments. It serves as a bridge for communication buses requiring voltage adaptation. Unlike bus buffers, it provides translation only when active and isolates capacitance solely when disabled. The family supports various packaging options and temperature ranges to suit diverse industrial and automotive environments.

Translators, Level Shifters Replacement Considerations

Check for direct equivalents within the same product family or newer revisions. Verify that any substitute maintains the dual-channel architecture and AEC-Q100 qualification if automotive use is intended. Ensure pinout compatibility and electrical specifications match the original design constraints.