ST2329AQTR

Translators, Level Shifters Overview

The ST2329AQTR is a 2-bit dual supply level translator designed for bidirectional data transfer in multi-voltage systems. It operates with a low voltage range (VL) of 1.65 V to 3.6 V and a high voltage range (VCC) of 1.80 V to 5.5 V. The device supports a maximum data rate of 18 Mbps when driven by a totem pole driver, or 6.8 Mbps with an open drain driver. It features a transmission gate-based design that eliminates the need for a direction control pin. The component includes power-down mode functionality, ensuring all I/Os enter a high-impedance state when either supply is off.

Translators, Level Shifters Feature Summary

• Bidirectional level translation without requiring a direction control pin
• Power-down mode ensures high-impedance I/Os when supplies are inactive
• Compatible with both totem pole and open drain drivers
• ESD protection rated at ±2 kV HBM on all pins

Translators, Level Shifters Applications

• Low voltage system level translation
• Mobile phones and other mobile devices
• I2C level translation
• UART level translation

Translators, Level Shifters Procurement Notes

Verify the specific ordering suffix 'QTR' corresponds to the QFN10 package and tape-and-reel packaging configuration as defined in the official datasheet. Confirm that the VL and VCC supply voltages align with the recommended operating conditions before integration. Ensure the OE pin logic levels match the system controller outputs to prevent unintended high-impedance states during operation.

Translators, Level Shifters Selection Notes

Select this component when designing interfaces between low-voltage ASICs or PLDs and higher voltage systems requiring bidirectional communication. It is suitable for applications needing automatic direction detection without external control signals. Consider the 18 Mbps maximum data rate capability when driving with totem pole sources. Verify that the 1.65 V minimum VL requirement meets the lowest voltage rail in the target application architecture.

Translators, Level Shifters Part Context

The ST2329A belongs to a family of 2-bit dual supply level translators manufactured by STMicroelectronics. The ST2329AQTR variant specifically utilizes the QFN10 package with dimensions of 1.8 x 1.4 mm. This series provides solutions for translating logic levels between different voltage domains in portable and industrial electronics.

Translators, Level Shifters Replacement Considerations

Public confirmed substitute part numbers include ST2329BQTR, ST2329IQTR, and ST2329QTR.