MicroStar Junior is a trademark of Texas Instruments.
The TXS02612 is designed to interface the cell phone baseband with external SDIO peripherals. The device includes a 6-channel SPDT switch with voltage-level translation capability. This allows a single SDIO port to be interfaced with two SDIO peripherals. The TXS02612 has three separate supply rails that operate over the full range of 1.1 V to 3.6 V. This allows the baseband and SDIO peripherals to operate at different supply voltages if required.
The select (SEL) input is used to choose between the B0 port and B1 port. When SEL = Low, B0 port is selected; when SEL = High, B1 port is selected. SEL is referenced to VCCA. For the unselected B port, the clock output is held low, whereas the data and command I/Os are pulled high to their respective VCCB through a 70-k
resistor (±30% tolerance).
| Typ | Titel | Datum | ||
|---|---|---|---|---|
| * | Data sheet | TXS02612 SDIO Port Expander With Voltage-Level Translation datasheet (Rev. C) | 03 Feb 2010 | |
| Application note | Schematic Checklist - A Guide to Designing with Auto-Bidirectional Translators | PDF | HTML | 12 Jul 2024 | |
| Application note | Understanding Transient Drive Strength vs. DC Drive Strength in Level-Shifters (Rev. A) | PDF | HTML | 03 Jul 2024 | |
| Selection guide | Voltage Translation Buying Guide (Rev. A) | 15 Apr 2021 | ||
| Application note | Translate Voltages for SDIO | PDF | HTML | 20 Okt 2020 |
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