ST2329IQTR

Translators, Level Shifters Overview

The ST2329IQTR is a 2-bit dual-supply level translator designed for bidirectional data transfer in multi-voltage systems. It operates with a low-voltage supply (VL) ranging from 1.65 V to 3.6 V and a high-voltage supply (VCC) from 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 integrated 10 kΩ pull-up resistors on both sides, automatic direction detection without a control pin, and a power-down mode that places all I/Os in high impedance. The component is housed in a QFN10 package measuring 1.8 x 1.4 mm.

Translators, Level Shifters Feature Summary

• Bidirectional translation capability utilizing a transmission gate design that eliminates the need for a separate direction control pin.
• Integrated 10 kΩ pull-up resistors on both voltage domains reduce external component requirements.
• Power-down protection ensures high-impedance state on all I/Os when either supply rail is off.
• Supports tri-state output mode via an enable pin to disable all inputs and outputs.

Translators, Level Shifters Applications

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

Translators, Level Shifters Procurement Notes

Verify the specific ordering suffix 'QTR' corresponds to the tape and reel packaging format containing 3000 parts per reel. Confirm the device status as obsolete or discontinued through official manufacturer channels before finalizing procurement plans. Ensure environmental compliance documentation matches project requirements.

Translators, Level Shifters Selection Notes

Select this component for applications requiring seamless bidirectional communication between disparate voltage domains without complex control logic. The integrated pull-ups simplify circuit design, while the wide operating voltage ranges accommodate various low-power ASICs and PLDs interfacing with higher voltage systems.

Translators, Level Shifters Part Context

This part belongs to the ST2329 series of level translators manufactured by STMicroelectronics. It is categorized under interfaces and transceivers, specifically functioning as an I/O expander and level translator for connecting multi-voltage chipsets and system I/Os within embedded designs.

Translators, Level Shifters Replacement Considerations

Publicly confirmed substitute part numbers include 74AVC2T245GUX, 74AVC2T45DC, 74LVC2T45DC-Q100H, 74LVCH2T45DC-Q100H, and 74LVCH2T45GT.