PCA9306DC1,125

Translators, Level Shifters Overview

The PCA9306DC1,125 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 bidirectional translation between 1.0 V and 5 V without requiring a direction pin. It features an enable input that isolates ports when low and connects them when high. The package is VSSOP-8 with dimensions of 2.3 mm width. Operating temperature ranges from -40 °C to +105 °C.

Translators, Level Shifters Feature Summary

• Bidirectional voltage translation for SDA and SCL lines in mixed-mode applications
• Compatible with Standard-mode, Fast-mode, Fast-mode Plus, and SMBus protocols
• Low propagation delay under 1.5 ns for high-speed data transfer
• Open-drain I/O ports with 5 V tolerance for mixed-signal operation

Translators, Level Shifters Applications

• Connecting I2C controllers operating at different voltage levels
• Interfacing SMBus devices with varying supply voltages
• Mixed-mode I2C bus systems requiring level shifting
• Systems needing isolation between buses via the enable pin

Translators, Level Shifters Procurement Notes

Verify the specific ordering suffix ',125' corresponds to the VSSOP-8 package and reel packing method. Confirm the manufacturer is NXP Semiconductors. Ensure the component meets the required ambient temperature range of -40 °C to +105 °C for your application environment.

Translators, Level Shifters Selection Notes

Select this part for applications requiring dual-channel bidirectional translation between low-voltage logic (1.0 V–3.6 V) and higher voltage buses (up to 5.5 V). It is suitable where minimal propagation delay and open-drain compatibility are critical. Ensure pull-up resistors are sized correctly based on driver sink current and node capacitance.

Translators, Level Shifters Part Context

This component belongs to the PCA9306 family of voltage-level translators. It shares functional characteristics with other variants like PCA9306D and PCA9306DP but differs in physical packaging. The DC1 variant specifically utilizes the VSSOP-8 package, offering a compact solution for space-constrained printed circuit board designs.

Translators, Level Shifters Replacement Considerations

The Texas Instruments PCA9306DCU is functionally equivalent and shares the same footprint and pinout. The PCA9306DC1/DG is also electrically and mechanically identical but uses dark green package material.