ST2129BQTR

Translators, Level Shifters Overview

The ST2129BQTR is a 2-bit dual supply level translator manufactured by STMicroelectronics, designed for bi-directional data transfer in multi-voltage systems without requiring a direction control pin. It operates with VL ranging from 1.65 V to 3.6 V and VCC from VL up to 5.5 V. The device supports a maximum data rate of 90 Mbps at VL = 1.8 V and VCC = 3.3 V, with propagation delays varying between 2.5 ns and 7.6 ns depending on voltage conditions. It features push-pull outputs, a 5.5 V tolerant enable pin, and ±2 kV HBM ESD protection, housed in a QFN8 package measuring 1.4 x 1.2 x 0.55 mm.

Translators, Level Shifters Feature Summary

• Bi-directional level translation capability without the need for an external direction control pin
• Dual supply architecture supporting wide voltage ranges from 1.65 V to 5.5 V
• Push-pull output structure providing totum pole driving for robust signal integrity
• Integrated ESD protection rated at ±2 kV Human Body Model across all pins

Translators, Level Shifters Applications

• Low-voltage system level translation between ASICs and PLDs
• Mobile phones and other portable mobile devices
• Data transfer interfaces in multi-voltage embedded systems

Translators, Level Shifters Procurement Notes

Verify the specific ordering code ST2129BQTR against official STMicroelectronics documentation to ensure correct package type and tape-and-reel configuration. Confirm that the application environment remains within the recommended operating temperature range of -40 °C to +85 °C. Ensure driver capabilities meet the minimum sourcing and sinking requirements specified in the datasheet for proper operation.

Translators, Level Shifters Selection Notes

Select this component when designing circuits requiring automatic bi-directional voltage translation between two distinct power domains without complex control logic. It is suitable for applications where space is constrained due to its small QFN8 footprint. Ensure that the load driving capability requirements align with the internal weak buffer characteristics to avoid improper logic state maintenance.

Translators, Level Shifters Part Context

This device belongs to the ST2129 series of voltage level translators produced by STMicroelectronics. It is specifically engineered to facilitate communication between low-voltage components and higher voltage systems. The product is currently in full production status according to the provided datasheet revision history.

Translators, Level Shifters Replacement Considerations

Public confirmed substitute part numbers are not available in the provided source material.