主页 逻辑和电压转换 电压转换器和电平转换器 电压转换器
主页
逻辑和电压转换
电压转换器和电平转换器
电压转换器

SN74LVC8T245-EP

正在供货

具有可配置电压转换和三态输出的 8 位双电源总线收发器（增强型产品）

立即订购
数据表

SN74LVC8T245-EP

正在供货
数据表 立即订购

产品详情

Bits (#) 8 Data rate (max) (Mbps) 200 Topology Push-Pull Vin (min) (V) 1.65 Vin (max) (V) 5.5 Vout (min) (V) 1.65 Vout (max) (V) 5.5 Applications GPIO, JTAG, SPI, UART Features Output enable, Overvoltage tolerant inputs, Partial power down (Ioff) Prop delay (ns) 10.9 Technology family LVC Supply current (max) (mA) 0.025 Rating HiRel Enhanced Product Operating temperature range (°C) -55 to 125
Bits (#) 8 Data rate (max) (Mbps) 200 Topology Push-Pull Vin (min) (V) 1.65 Vin (max) (V) 5.5 Vout (min) (V) 1.65 Vout (max) (V) 5.5 Applications GPIO, JTAG, SPI, UART Features Output enable, Overvoltage tolerant inputs, Partial power down (Ioff) Prop delay (ns) 10.9 Technology family LVC Supply current (max) (mA) 0.025 Rating HiRel Enhanced Product Operating temperature range (°C) -55 to 125
SOIC (DW) 24 159.65 mm² (15.5 mm × 10.3 mm) TSSOP (PW) 24 49.92 mm² (7.8 mm × 6.4 mm) VQFN (RHL) 24 19.25 mm² (5.5 mm × 3.5 mm)
  • Control Inputs VIH/VIL Levels Are Referenced to VCCA Voltage
  • VCC Isolation Feature – If Either VCC Input Is at GND, All Are in the High-Impedance State
  • Fully Configurable Dual-Rail Design Allows Each Port to Operate Over the Full 1.65-V to 5.5-V Power-Supply Range
  • Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
  • ESD Protection Exceeds JESD 22
    • 4000-V Human-Body Model (A114-A)
    • 200-V Machine Model (A115-A)
    • 1000-V Charged-Device Model (C101)
  • Control Inputs VIH/VIL Levels Are Referenced to VCCA Voltage
  • VCC Isolation Feature – If Either VCC Input Is at GND, All Are in the High-Impedance State
  • Fully Configurable Dual-Rail Design Allows Each Port to Operate Over the Full 1.65-V to 5.5-V Power-Supply Range
  • Latch-Up Performance Exceeds 100 mA Per JESD 78, Class II
  • ESD Protection Exceeds JESD 22
    • 4000-V Human-Body Model (A114-A)
    • 200-V Machine Model (A115-A)
    • 1000-V Charged-Device Model (C101)

This 8-bit noninverting bus transceiver uses two separate configurable power-supply rails. The SN74LVC8T245-EP is optimized to operate with VCCA and VCCB set at 1.65 V to 5.5 V. The A port is designed to track VCCA. VCCA accepts any supply voltage from 1.65 V to 5.5 V. The B port is designed to track VCCB. VCCB accepts any supply voltage from 1.65 V to 5.5 V. This allows for universal low-voltage bidirectional translation between any of the 1.8-V, 2.5-V, 3.3-V, and 5.5-V voltage nodes.

The SN74LVC8T245-EP 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.

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

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 ensures that if either VCC input is at GND, all outputs are in the high-impedance state.

To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.

This 8-bit noninverting bus transceiver uses two separate configurable power-supply rails. The SN74LVC8T245-EP is optimized to operate with VCCA and VCCB set at 1.65 V to 5.5 V. The A port is designed to track VCCA. VCCA accepts any supply voltage from 1.65 V to 5.5 V. The B port is designed to track VCCB. VCCB accepts any supply voltage from 1.65 V to 5.5 V. This allows for universal low-voltage bidirectional translation between any of the 1.8-V, 2.5-V, 3.3-V, and 5.5-V voltage nodes.

The SN74LVC8T245-EP 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.

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

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 ensures that if either VCC input is at GND, all outputs are in the high-impedance state.

To ensure the high-impedance state during power up or power down, OE should be tied to VCC through a pullup resistor; the minimum value of the resistor is determined by the current-sinking capability of the driver.
filter 查找其他 电压转换器
下载 观看带字幕的视频 视频

您可能感兴趣的相似产品

open-in-new 比较替代产品
功能与比较器件相同且具有相同引脚。
SN54SLC8T245-SEP 正在供货 抗辐射、8 位 0.65V 至 3.3V 方向控制电平转换器 SEP version of 8-bit direction controlled translator with Schmitt trigger Inputs

技术文档

未找到结果。请清除搜索并重试。
查看全部 10
顶层文档 类型 标题 格式选项 下载最新的英语版本 日期
* 数据表 SN74LVC8T245-EP 8-Bit Dual-Supply Bus Transceiver With Configurable Voltage Translation and Tri-State Outputs 数据表 (Rev. A) PDF | HTML 2017-3-2
* 辐射与可靠性报告 CLVC1G126IDCKREP Reliability Report 2018-1-25
* 辐射与可靠性报告 SN74LVC8T245MPWREP Reliability Report 2015-2-6
* 辐射与可靠性报告 SN74LVC8T245MPWREP Reliability Report 2011-8-31
* VID SN74LVC8T245-EP VID V6209615 2016-6-21
应用手册 了解电平转换器中的瞬态驱动强度与直流驱动强度 PDF | HTML PDF | HTML 2026-8-11
应用手册 原理图检查清单 - 使用自动双向转换器进行设计的指南 PDF | HTML 英语版 PDF | HTML 2024-12-3
应用手册 原理图检查清单 - 使用固定或方向控制转换器进行设计的指南 PDF | HTML 英语版 PDF | HTML 2024-10-3
应用简报 Voltage Translation for Rugged High Reliability Applications PDF | HTML 2021-7-20
选择指南 Voltage Translation Buying Guide (Rev. A) 2021-4-15

设计与开发

如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。

评估板

14-24-NL-LOGIC-EVM — 采用 14 引脚至 24 引脚无引线封装的逻辑产品通用评估模块

14-24-EVM 是一款灵活的评估模块 (EVM)，旨在支持具有 14 引脚至 24 引脚 BQA、BQB、RGY、RSV、RJW 或 RHL 封装的任何逻辑或转换器件。

用户指南: PDF | HTML
支持的产品和硬件
有库存
限制：
??asset.out-of-stock-ti_zh_CN??
无货
仿真模型

SN74LVC8T245 IBIS Model

SCEM494.ZIP (56 KB) - IBIS 模型
支持的产品和硬件
封装 引脚 CAD 符号、封装和 3D 模型
SOIC (DW) 24 Ultra Librarian
TSSOP (PW) 24 Ultra Librarian
VQFN (RHL) 24 Ultra Librarian
适用于评估类项目的 TI 标准条款与条件。

订购和质量

支持和培训

可获得 TI 工程师技术支持的 TI E2E™ 论坛

查看全部论坛主题 查看英文版全部论坛主题

所有内容均由 TI 和社区贡献者按“原样”提供，并不构成 TI 规范。请参阅使用条款。

如果您对质量、包装或订购 TI 产品有疑问，请参阅 TI 支持。​​​​​​​​​​​​​​

视频