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SN74LV245AT

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具有三态输出的八路总线收发器

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数据表

SN74LV245AT

正在供货
数据表 立即订购

产品详情

Supply voltage (min) (V) 4.5 Supply voltage (max) (V) 5.5 Number of channels 8 IOL (max) (mA) 16 IOH (max) (mA) -16 Input type TTL Output type CMOS Features Balanced outputs Technology family LV-AT Rating Catalog Operating temperature range (°C) -40 to 125
Supply voltage (min) (V) 4.5 Supply voltage (max) (V) 5.5 Number of channels 8 IOL (max) (mA) 16 IOH (max) (mA) -16 Input type TTL Output type CMOS Features Balanced outputs Technology family LV-AT Rating Catalog Operating temperature range (°C) -40 to 125
SOIC (DW) 20 131.84 mm² 12.8 x 10.3 SOP (NS) 20 98.28 mm² 12.6 x 7.8 SSOP (DB) 20 56.16 mm² 7.2 x 7.8 TSSOP (PW) 20 41.6 mm² 6.5 x 6.4 TVSOP (DGV) 20 32 mm² 5 x 6.4 VQFN (RGY) 20 15.75 mm² 4.5 x 3.5
  • Inputs Are TTL-Voltage Compatible
  • 4.5-V to 5.5-V VCC Operation
  • Typical tpd of 3.5 ns at 5 V
  • Typical VOLP (Output Ground Bounce) <0.8 V
    at VCC = 5 V, TA = 25°C
  • Typical VOHV (Output VOH Undershoot) >2.3 V
    at VCC = 5 V, TA = 25°C
  • Supports Mixed-Mode Voltage Operation on All Ports
  • Ioff Supports Partial-Power-Down Mode Operation
  • Latch-Up Performance Exceeds 250 mA Per JESD 17
  • ESD Protection Exceeds JESD 22
    • 2000-V Human-Body Model (A114-A)
    • 1000-V Charged-Device Model (C101)
  • Inputs Are TTL-Voltage Compatible
  • 4.5-V to 5.5-V VCC Operation
  • Typical tpd of 3.5 ns at 5 V
  • Typical VOLP (Output Ground Bounce) <0.8 V
    at VCC = 5 V, TA = 25°C
  • Typical VOHV (Output VOH Undershoot) >2.3 V
    at VCC = 5 V, TA = 25°C
  • Supports Mixed-Mode Voltage Operation on All Ports
  • Ioff Supports Partial-Power-Down Mode Operation
  • Latch-Up Performance Exceeds 250 mA Per JESD 17
  • ESD Protection Exceeds JESD 22
    • 2000-V Human-Body Model (A114-A)
    • 1000-V Charged-Device Model (C101)

This octal bus transceiver is designed for asynchronous two-way communication between data buses. The control-function implementation minimizes external timing requirements.

The SN74LV245AT allows data transmission from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction-control (DIR) input. The output-enable (OE) input can be used to disable the device so that the buses are effectively isolated.

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 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.

This octal bus transceiver is designed for asynchronous two-way communication between data buses. The control-function implementation minimizes external timing requirements.

The SN74LV245AT allows data transmission from the A bus to the B bus or from the B bus to the A bus, depending on the logic level at the direction-control (DIR) input. The output-enable (OE) input can be used to disable the device so that the buses are effectively isolated.

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 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.
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类型 标题 下载最新的英语版本 日期
* 数据表 SN74LV245AT 数据表 (Rev. D) 2013年 8月 1日

设计和开发

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-LOGIC-EVM — 采用 14 引脚至 24 引脚 D、DB、DGV、DW、DYY、NS 和 PW 封装的逻辑产品通用评估模块

14-24-LOGIC-EVM 评估模块 (EVM) 旨在支持采用 14 引脚至 24 引脚 D、DW、DB、NS、PW、DYY 或 DGV 封装的任何逻辑器件。

用户指南: PDF | HTML
英语版 (Rev.B): PDF | HTML
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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
英语版 (Rev.A): PDF | HTML
TI.com 上无现货
仿真模型

SN74LV245AT IBIS Model

SCEM480.ZIP (16 KB) - IBIS Model
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封装 引脚 下载
SOIC (DW) 20 查看选项
SOP (NS) 20 查看选项
SSOP (DB) 20 查看选项
TSSOP (PW) 20 查看选项
TVSOP (DGV) 20 查看选项
VQFN (RGY) 20 查看选项
应遵守 TI 评估类商品的标准条款与条件。

订购和质量

包含信息：
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
包含信息：
  • 制造厂地点
  • 封装厂地点

支持和培训

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