PCA9306DC1/DG,125

Translators, Level Shifters Overview

The PCA9306DC1/DG,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 provides bidirectional translation between 1.0 V and 5 V without direction pins, featuring a maximum propagation delay of less than 1.5 ns and an ON-state resistance of 3.5 Ω. It supports Standard-mode, Fast-mode, and Fast-mode Plus I2C-bus protocols. The component is housed in a VSSOP8 package and functions within an ambient temperature range of -40 °C to +105 °C.

Translators, Level Shifters Feature Summary

• Bidirectional voltage translation for SDA and SCL lines without requiring direction control pins
• Low ON-state resistance connection between input and output ports to minimize signal distortion
• High-impedance state isolation when the enable input is low
• ESD protection exceeding 2000 V HBM and 1000 V CDM

Translators, Level Shifters Applications

• Mixed-mode I2C-bus applications connecting devices with different supply voltages
• SMBus interface level shifting
• Connecting controllers operating at different frequencies (e.g., 400 kHz and 100 kHz)

Translators, Level Shifters Procurement Notes

Verify that the specific part number matches the required VSSOP8 package variant. Confirm the dark green package material specification if environmental compliance requires lead-free and halogen/antimony-free materials. Ensure the enable pin configuration aligns with the system's power sequencing requirements.

Translators, Level Shifters Selection Notes

Select this component when bidirectional translation between 1.0 V and 5 V is required without complex direction logic. Ensure the system pull-up resistors are sized correctly based on driver sink current and node capacitance to maintain signal integrity. Verify that the Vbias voltage remains at least 1 V higher than Vref for optimal operation.

Translators, Level Shifters Part Context

This part belongs to the PCA9306 family of dual bidirectional translators. It shares functional characteristics with other variants like the PCA9306DC1 but is distinguished by its specific ordering suffix indicating dark green package material. It serves as a direct replacement for similar functionally equivalent parts in designs requiring compact VSSOP8 packaging.

Translators, Level Shifters Replacement Considerations

Functionally equivalent to the Texas Instruments PCA9306DCU. The standard PCA9306DC1 is also electrically and mechanically compatible.