SN74LVC8T245-Q1

ACTIVO

Traducción de bus de suministro DL de 8 bits con traducción de tensión y salidas de tres estados de

Detalles del producto

Bits (#) 8 Data rate (max) (Mbps) 200 Topology Push-Pull Direction control (typ) Direction-controlled Vin (min) (V) 1.65 Vin (max) (V) 5.5 Vout (min) (V) 1.65 Vout (max) (V) 5.5 Applications GPIO, PCM, SPI, UART, JTAG, I2S Features Output enable, Overvoltage tolerant inputs, Partial power down (Ioff) Prop delay (ns) 6.6 Technology family LVC Supply current (max) (mA) 0.025 Rating Automotive Operating temperature range (°C) -40 to 125
Bits (#) 8 Data rate (max) (Mbps) 200 Topology Push-Pull Direction control (typ) Direction-controlled Vin (min) (V) 1.65 Vin (max) (V) 5.5 Vout (min) (V) 1.65 Vout (max) (V) 5.5 Applications GPIO, PCM, SPI, UART, JTAG, I2S Features Output enable, Overvoltage tolerant inputs, Partial power down (Ioff) Prop delay (ns) 6.6 Technology family LVC Supply current (max) (mA) 0.025 Rating Automotive Operating temperature range (°C) -40 to 125
TSSOP (PW) 24 49.92 mm² (7.8 mm × 6.4 mm)
  • AEC-Q100 qualified for automotive applications
  • Fully configurable dual-rail design allows each port to operate over the full 1.65V to 5.5V power-supply range
  • Robust, glitch-free power supply sequencing
  • Control inputs VIH/VIL levels are referenced to VCCA voltage
  • VCC isolation feature and VCC disconnect feature
    • if either VCC input is below 100mV or left floating, all I/O outputs are disabled and become high- impedance state
  • Ioff supports partial-power-down mode operation
  • Latch-up performance exceeds 100mA per JESD 78, class II
  • Operating temperature from -40°C to 125°C
  • ESD protection exceeds JESD 22
    • 4000V Human-Body Model (A114-A)
    • 1000V Charged-Device Model (C101)
  • AEC-Q100 qualified for automotive applications
  • Fully configurable dual-rail design allows each port to operate over the full 1.65V to 5.5V power-supply range
  • Robust, glitch-free power supply sequencing
  • Control inputs VIH/VIL levels are referenced to VCCA voltage
  • VCC isolation feature and VCC disconnect feature
    • if either VCC input is below 100mV or left floating, all I/O outputs are disabled and become high- impedance state
  • Ioff supports partial-power-down mode operation
  • Latch-up performance exceeds 100mA per JESD 78, class II
  • Operating temperature from -40°C to 125°C
  • ESD protection exceeds JESD 22
    • 4000V Human-Body Model (A114-A)
    • 1000V Charged-Device Model (C101)

The SN74LVC8T245-Q1 is an eight bit non-inverting bus transceiver with configurable dual power supply rails that enables bidirectional voltage level translation. The SN74LVC8T245-Q1 is optimized to operate with VCCA and VCCB set at 1.65V to 5.5V. The A port is designed to track VCCA. VCCA accepts any supply voltage from 1.65V to 5.5V. The B port is designed to track VCCB. VCCB accepts any supply voltage from 1.65V to 5.5V. This allows for universal low-voltage bidirectional translation between any of the 1.8V, 2.5V, 3.3V, and 5.5V voltage nodes.

The SN74LVC8T245-Q1 is designed for asynchronous communication between two data buses. The logic levels of the direction-control (DIR) input and the output-enable (OE) input activate either the B-port outputs or the A-port outputs or place both output ports into the high-impedance mode. The device transmits data from the A bus to the B bus when the B-port outputs are activated, and from the B bus to the A bus when the A-port outputs are activated.

The input circuitry on both A and B ports is always active and must have a logic HIGH or LOW level applied to prevent excess ICC and ICCZ.

This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down. The VCC isolation feature is designed so that if either VCC input is at GND, then all outputs are in the high-impedance state. To put the device in the high-impedance state during power up or power down, tie OE to VCC through a pullup resistor; the current-sinking capability of the driver determines the minimum value of the resistor.

The SN74LVC8T245-Q1 is designed so that the control pins (DIR and OE) are supplied by VCCA.

The SN74LVC8T245-Q1 is an eight bit non-inverting bus transceiver with configurable dual power supply rails that enables bidirectional voltage level translation. The SN74LVC8T245-Q1 is optimized to operate with VCCA and VCCB set at 1.65V to 5.5V. The A port is designed to track VCCA. VCCA accepts any supply voltage from 1.65V to 5.5V. The B port is designed to track VCCB. VCCB accepts any supply voltage from 1.65V to 5.5V. This allows for universal low-voltage bidirectional translation between any of the 1.8V, 2.5V, 3.3V, and 5.5V voltage nodes.

The SN74LVC8T245-Q1 is designed for asynchronous communication between two data buses. The logic levels of the direction-control (DIR) input and the output-enable (OE) input activate either the B-port outputs or the A-port outputs or place both output ports into the high-impedance mode. The device transmits data from the A bus to the B bus when the B-port outputs are activated, and from the B bus to the A bus when the A-port outputs are activated.

The input circuitry on both A and B ports is always active and must have a logic HIGH or LOW level applied to prevent excess ICC and ICCZ.

This device is fully specified for partial-power-down applications using Ioff. The Ioff circuitry disables the outputs, preventing damaging current backflow through the device when it is powered down. The VCC isolation feature is designed so that if either VCC input is at GND, then all outputs are in the high-impedance state. To put the device in the high-impedance state during power up or power down, tie OE to VCC through a pullup resistor; the current-sinking capability of the driver determines the minimum value of the resistor.

The SN74LVC8T245-Q1 is designed so that the control pins (DIR and OE) are supplied by VCCA.

Descargar Ver vídeo con transcripción Video

Documentación técnica

No se encontraron resultados. Borre su búsqueda y vuelva a intentarlo.
Ver todo 6
Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos SN74LVC8T245-Q1 Automotive 8-Bit Dual-Supply Bus Transceiver With Configurable Voltage Translation and 3-State Outputs datasheet (Rev. B) PDF | HTML 29/05/2026
Nota sobre la aplicación Schematic Checklist - A Guide to Designing With Fixed or Direction Control Translators PDF | HTML 2/10/2024
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
Más documentación Automotive Logic Devices Brochure 27/08/2014

Diseño y desarrollo

Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.

Placa de evaluación

14-24-LOGIC-EVM — Módulo de evaluación genérico de productos lógicos para encapsulados D, DB, DGV, DW, DYY, NS y PW de

El módulo de evaluación (EVM) 14-24-LOGIC-EVM está diseñado para admitir cualquier dispositivo lógico que se encuentre en un encapsulado D, DW, DB, NS, PW, DYY o DGV de 14 a 24 pines.

Guía del usuario: PDF | HTML
Productos y hardware compatibles
En inventario
Límite:
??asset.out-of-stock-ti_es_MX??
No disponible
Placa de evaluación

AVCLVCDIRCNTRL-EVM — EVM genérico para dispositivo de traducción bidireccional controlado por dirección compatible con AV

El módulo de evaluación genérico está diseñado para admitir dispositivos de conversión controlados por dirección de semiconductor de óxido metálico complementario de baja tensión y AVC de uno, dos, cuatro y ocho canales. También es compatible con la retención de bus y los dispositivos de automoción (...)

Guía del usuario: PDF
Productos y hardware compatibles
En inventario
Límite:
??asset.out-of-stock-ti_es_MX??
No disponible
Placa de evaluación

TXV0106-EVM — Módulo de evaluación TXV0106

El módulo de evaluación (EVM) TXV0106 es una plataforma fácil de usar para evaluar la funcionalidad y el rendimiento del dispositivo TXV0106. El EVM dispone de circuitos y puentes opcionales para configurar el dispositivo para diferentes aplicaciones. El dispositivo ofrece opciones de conversión (...)
Guía del usuario: PDF | HTML
Productos y hardware compatibles
En inventario
Límite:
??asset.out-of-stock-ti_es_MX??
No disponible
Placa de evaluación

TXV0108-EVM — Módulo de evaluación TXV0108

El módulo de evaluación (EVM) TXV0108 es una plataforma fácil de usar para evaluar la funcionalidad y el rendimiento del dispositivo TXV0108. El EVM dispone de circuitos y puentes opcionales para configurar el dispositivo para diferentes aplicaciones. El dispositivo ofrece opciones de conversión (...)
Guía del usuario: PDF | HTML
Productos y hardware compatibles
En inventario
Límite:
??asset.out-of-stock-ti_es_MX??
No disponible
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
TSSOP (PW) 24 Ultra Librarian

Pedidos y calidad

Soporte y capacitación

Foros de TI E2E™ con asistencia técnica de los ingenieros de TI

El contenido lo proporcionan “tal como está” TI y los colaboradores de la comunidad y no constituye especificaciones de TI. Consulte los términos de uso.

Si tiene alguna pregunta sobre calidad, encapsulados o pedido de productos de TI, consulte el servicio de asistencia de TI. ​​​​​​​​​​​​​​

Videos