PCA9306DCTRE4

Translators, Level Shifters Overview

The PCA9306DCTRE4 is a dual bidirectional I2C-bus and SMBus voltage-level translator manufactured by Texas Instruments. It operates with VCCA ranging from 1.2 V to 3.3 V and VCCB from 1.8 V to 5.5 V. The device features an enable input, supports propagation delays of 1.2 ns to 1.5 ns, and functions within a temperature range of -40°C to +85°C or +105°C depending on the specific variant documentation. It utilizes an 8-pin SM-8 or VSSOP package for surface mount applications.

Translators, Level Shifters Feature Summary

• Provides automatic direction detection for bidirectional data flow between ports without requiring a dedicated direction pin.
• Features low on-state resistance switches to minimize propagation delay during active translation.
• Includes an enable input that isolates ports via high-impedance state when deactivated.

Translators, Level Shifters Applications

• Voltage level translation between 1.0 V and 5 V systems in I2C networks
• Interfacing SMBus devices with varying supply voltages
• Connecting standard-mode, fast-mode, and fast-mode plus I2C devices

Translators, Level Shifters Procurement Notes

Verify the specific suffix 'E4' indicates RoHS compliance and lead-free status as per manufacturer standards. Confirm package type matches design requirements, as variations exist between SM-8 and VSSOP. Check current availability status, as some variants may be obsolete or have limited stock. Ensure pull-up resistors are selected appropriately for the target bus speed and capacitance.

Translators, Level Shifters Selection Notes

Select this component when bidirectional translation between 1.2 V–3.3 V and 1.8 V–5.5 V domains is required. It is suitable for systems needing automatic direction control without external logic. Consider the enable pin functionality if bus isolation is needed. Verify thermal performance against the specified operating temperature range for the application environment.

Translators, Level Shifters Part Context

This part belongs to the PCA9306 series of dual bidirectional translators. It serves as a bridge for I2C and SMBus protocols, allowing communication between components operating at different voltage levels. The device simplifies system design by eliminating the need for manual direction control signals.

Translators, Level Shifters Replacement Considerations

PCA9306DCTR and PCA9306DCTT are parameter-equivalent alternatives. PCA9306DCUR offers similar functionality in an 8-VSSOP package. Verify pinout compatibility and electrical specifications before substitution.