TXS02612

ACTIVO

Expansor de puerto SDIO con conversión de nivel de tensión

Detalles del producto

Bits (#) 4 Data rate (max) (Mbps) 120 Topology Open drain, Push-Pull Direction control (typ) Auto-direction Vin (min) (V) 1.1 Vin (max) (V) 3.6 Vout (min) (V) 0.74 Vout (max) (V) 3.6 Applications MMC, SD Card, SDIO Features Edge rate accelerator Technology family TXS Supply current (max) (mA) 0.036 Rating Catalog Operating temperature range (°C) -40 to 85
Bits (#) 4 Data rate (max) (Mbps) 120 Topology Open drain, Push-Pull Direction control (typ) Auto-direction Vin (min) (V) 1.1 Vin (max) (V) 3.6 Vout (min) (V) 0.74 Vout (max) (V) 3.6 Applications MMC, SD Card, SDIO Features Edge rate accelerator Technology family TXS Supply current (max) (mA) 0.036 Rating Catalog Operating temperature range (°C) -40 to 85
WQFN (RTW) 24 16 mm² (4 mm × 4 mm)
  • 6-to-12 Demultiplexer/Multiplexer Allows SDIO Port Expansion
  • Built-in Level Translator Eliminates Voltage Mismatch Between
    Baseband and SD Card or SDIO Peripheral
  • VCCA, VCCB0, and VCCB1 Each Operate Over Full 1.1-V to 3.6-V Range
  • Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
  • ESD Performance A Port
    • 2000-V Human-Body Model (A114-B)
    • 100-V Machine Model (A115-A)
    • 1500-V Charged-Device Model (C101)
  • ±8-kV Contact Discharge IEC 61000-4-2 ESD Performance (B Port)

MicroStar Junior is a trademark of Texas Instruments.

  • 6-to-12 Demultiplexer/Multiplexer Allows SDIO Port Expansion
  • Built-in Level Translator Eliminates Voltage Mismatch Between
    Baseband and SD Card or SDIO Peripheral
  • VCCA, VCCB0, and VCCB1 Each Operate Over Full 1.1-V to 3.6-V Range
  • Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
  • ESD Performance A Port
    • 2000-V Human-Body Model (A114-B)
    • 100-V Machine Model (A115-A)
    • 1500-V Charged-Device Model (C101)
  • ±8-kV Contact Discharge IEC 61000-4-2 ESD Performance (B Port)

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).

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).

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Documentación técnica

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Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos TXS02612 SDIO Port Expander With Voltage-Level Translation datasheet (Rev. C) 3/02/2010
Nota sobre la aplicación Schematic Checklist - A Guide to Designing with Auto-Bidirectional Translators PDF | HTML 12/07/2024
Nota sobre la aplicación Understanding Transient Drive Strength vs. DC Drive Strength in Level-Shifters (Rev. A) PDF | HTML 3/07/2024
Guía de selección Voltage Translation Buying Guide (Rev. A) 15/04/2021
Nota sobre la aplicación Translate Voltages for SDIO PDF | HTML 20/10/2020

Diseño y desarrollo

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Modelo de simulación

TXS02612 IBIS Model

SCEM555.ZIP (78 KB) - Modelo IBIS
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Pedidos y calidad

Soporte y capacitación

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