PCA9306GD1,125

Translators, Level Shifters Overview

The PCA9306GD1,125 is a dual bidirectional I2C-bus and SMBus voltage-level translator manufactured by NXP Semiconductors. It operates with reference voltages from 1.0 V to 3.6 V (Vref) and 1.8 V to 5.5 V (Vbias). The device supports Standard-mode, Fast-mode, and Fast-mode Plus I2C protocols without requiring a direction pin. It features an enable input that controls the switch state, providing high-impedance isolation when disabled. The component utilizes an XSON8U package and ensures minimal propagation delay.

Translators, Level Shifters Feature Summary

• Dual bidirectional translation for SDA and SCL lines in mixed-mode I2C applications
• Low ON-state resistance minimizes signal distortion and propagation delay
• Open-drain I/O ports with 5V tolerance for mixed-mode signal operation
• High ESD protection exceeding specified HBM and CDM standards

Translators, Level Shifters Applications

• Mixed-mode I2C bus systems connecting devices at different voltage levels
• SMBus interface translation between low-voltage controllers and higher-voltage peripherals
• System designs requiring bidirectional data flow without directional control logic

Translators, Level Shifters Procurement Notes

Verify the specific ordering suffix GD1,125 against current NXP documentation to confirm package type and availability status. Check for discontinuation notices or last-time-buy dates associated with this part number before finalizing procurement plans. Ensure compatibility with existing PCB footprints for the XSON8U package.

Translators, Level Shifters Selection Notes

Select this component for applications requiring seamless bidirectional voltage translation between 1.0 V and 5 V domains. Ensure the system design accommodates the required pull-up resistors on both sides of the translator. Verify that the enable signal voltage meets the minimum requirement relative to the reference voltage for optimal switching performance.

Translators, Level Shifters Part Context

This part belongs to the PCA9306 family of dual bidirectional translators. It shares functional characteristics with other variants like PCA9306GM and PCA9306DC but differs in physical packaging. The GD1 suffix specifically denotes the XSON8U package configuration, which offers a compact footprint suitable for space-constrained designs.

Translators, Level Shifters Replacement Considerations

PCA9306DC1 and PCA9306DC1/DG are documented as drop-in replacements for discontinued versions within the family. Verify electrical and mechanical equivalence before substitution.