SN74AXC2T245

正在供货

Dual-bit, 2-DIR pin dual-supply bus transceiver w/ configurable voltage translation, 3-state output

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产品详细信息

参数

Technology Family AXC Applications UART, JTAG Bits (#) 2 High input voltage (Min) (Vih) 0.45 High input voltage (Max) (Vih) 3.6 Output voltage (Min) (V) 0.65 Output voltage (Max) (V) 3.6 IOH (Max) (mA) -12 IOL (Max) (mA) 12 Rating Catalog open-in-new 查找其它 方向控制型电压转换器

封装|引脚|尺寸

UQFN (RSW) 10 3 mm² 1.8 x 1.4 open-in-new 查找其它 方向控制型电压转换器

特性

  • Fully configurable dual-rail design allows each port to operate with a power supply range from 0.65 V to 3.6 V
  • Operating temperature from –40°C to +125°C
  • DIR control input for each channel
  • Glitch-free power supply sequencing
  • Up to 380-Mbps support when translating from 1.8 V to 3.3 V
  • VCC isolation feature
    • If either VCC input is below 100 mV, all I/O outputs are disabled and become high-impedance
  • Ioff supports partial-power-down mode operation
  • Compatible with AVC-family level shifters
  • Latch-up performance exceeds 100 mA per JESD 78, class II
  • ESD protection exceeds JEDEC JS-001
    • 8000-V Human-body model
    • 1000-V Charged-device model

All trademarks are the property of their respective owners.

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描述

The SN74AXC2T245 is a two-bit noninverting bus transceiver that uses two individually configurable power-supply rails. The device is operational with both VCCA and VCCB supplies as low as 0.65 V. The A port is designed to track VCCA, which accepts any supply voltage from 0.65 V to 3.6 V. The B port is designed to track VCCB, which also accepts any supply voltage from 0.65 V to 3.6 V. Additionally the SN74AXC2T245 is compatible with a single-supply system.

The SN74AXC2T245 device is designed for asynchronous communication between data buses. The device transmits data from the A bus to the B bus or from the B bus to the A bus, depending on the logic level of the direction-control inputs (DIRx). The SN74AXC2T245 device is designed so the control pin (DIR) is referenced to VCCA.

This device is fully specified for partial-power-down applications using the Ioff current. The Ioff protection circuitry ensures that no excessive current is drawn from or to an input, output, or combined I/O that is biased to a specific voltage while the device is powered down.

The VCC isolation feature ensures that if either VCCA or VCCB is less than 100 mV, both I/O ports enter a high-impedance state by disabling their outputs.

Glitch-free power supply sequencing allows either supply rail to be powered on or off in any order while providing robust power sequencing performance.

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技术文档

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类型 标题 下载最新的英文版本 日期
* 数据表 SN74AXC2T245 双位双电源总线收发器 数据表 2016年 11月 14日
应用手册 UART Translation Usecase 2020年 10月 12日
技术文章 Enabling IIoT to reach beyond the factory floor 2020年 7月 29日

设计与开发

有关其他条款或所需资源,请点击下面的任何链接来查看详情页面。

硬件开发

评估板 下载
AXC2T-SMALLPKGEVM
AXC2T-SMALLPKGEVM
20
说明
This EVM is designed to support DTM and RSW packages for the AXC and LVC family of DIR controlled bidirectional devices. The AXC and AVC devices belong to the low voltage direction controlled translation family with operating voltage from 0.65V to 3.6V (AXC) and 1.2 to 3.6 (AVC) with 12mA of drive (...)
特性
  • Pre-populated with the SN74AXC2T45DTM package
  • Demonstrates the small package technology of TI 
  • Ground port for each header pin supports high speed measurement
  • DIR pin; have the option of 10K ohm resistor pullup or pulldown

设计工具和仿真

仿真模型 下载
SCEM596.ZIP (30 KB) - IBIS Model

CAD/CAE 符号

封装 引脚 下载
UQFN (RSW) 10 了解详情

订购与质量

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/FIT 估算
  • 材料成分
  • 认证摘要
  • 持续可靠性监测

支持与培训

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