TXS0206-29YFPR

Overview

The TXS0206-29YFPR is a voltage-translating transceiver and LDO regulator designed for MMC, SD Card, and Memory Stick interfaces. It features a bidirectional level translator with VCCA operating from 1.1 V to 3.6 V and an integrated LDO providing a fixed 2.9 V output (VCCB) from a 3.05 V to 5.5 V input range. The device supports data rates up to 60 Mbps with a maximum propagation delay of 4 ns at 1.8 V translation. It includes ±8-kV contact discharge ESD protection on the card side and operates within a temperature range of -40°C to +85°C in a 20-bump WCSP package.

Feature Summary

• Integrated low-dropout regulator provides a stable 2.9 V supply for memory cards from higher host voltages.
• Bidirectional auto-direction-sensing architecture translates logic levels between microprocessors and memory cards without external control signals.
• Built-in electrostatic discharge protection meets high-voltage standards for direct external card connections.
• Edge-rate acceleration circuitry optimizes signal integrity and maximizes data throughput during transitions.

Applications

• Interfacing low-voltage microprocessors with MultiMediaCards (MMCs)
• Connecting secure digital (SD) cards and SDIO devices
• Memory interface solutions for mobile phones and PDAs
• Digital cameras and personal media players

Procurement Notes

Verify the specific YFP package designation and Pb-free status against the latest Texas Instruments documentation before finalizing designs. Confirm that the required 2.9 V LDO output aligns with the target memory card specifications. Ensure PCB layout adheres to recommended trace lengths to prevent excessive capacitive loading, which may impact the one-shot triggering and signal integrity performance.

Selection Notes

Select this component when a combined solution for voltage translation and power regulation is required for SD/MMC interfaces. It is suitable for systems where the host processor operates at varying voltages between 1.1 V and 3.6 V while the memory card requires a fixed 2.9 V supply. Consider the compact 20-bump WCSP package for applications with strict board-space constraints.

Part Context

This device belongs to the TXS0206 family of translating transceivers manufactured by Texas Instruments. It is specifically engineered as a complete application-specific solution for memory card interfaces, integrating both the level-shifting logic and the necessary power management components into a single semiconductor unit.

Replacement Considerations

Public confirmed substitute part numbers: None available.