产品详细信息

Features Enable Pin Frequency (Max) (kHz) 400 VCCA (Min) (V) 1.2 VCCA (Max) (V) 5.5 VCCB (Min) (V) 1.8 VCCB (Max) (V) 5.5 Supply restrictions VCCA <= VCCB Rating Automotive Operating temperature range (C) -40 to 105
Features Enable Pin Frequency (Max) (kHz) 400 VCCA (Min) (V) 1.2 VCCA (Max) (V) 5.5 VCCB (Min) (V) 1.8 VCCB (Max) (V) 5.5 Supply restrictions VCCA <= VCCB Rating Automotive Operating temperature range (C) -40 to 105
VSSOP (DCU) 8 6 mm² 2 x 3.1
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 2: –40°C to 105°C
    • Device HBM ESD Classification Level H2
    • Device CDM ESD Classification Level C4B
  • 2-Bit Bidirectional Translator for SDA and SCL
    Lines in Mixed-Mode I2C Applications
  • Compatible With I2C and SMBus
  • Less Than 1.5-ns Maximum Propagation Delay to
    Accommodate Standard-Mode and Fast-Mode I2C
    Devices and Multiple Masters
  • Allows Voltage-Level Translation Between
    • 1.2-V VREF1 and 1.8-V, 2.5-V, 3.3-V, or 5-V
      VREF2
    • 1.8-V VREF1 and 2.5-V, 3.3-V, or 5-V VREF2
    • 2.5-V VREF1 and 3.3-V, or 5-V VREF2
    • 3.3-V VREF1 and 5-V VREF2
  • Provides Bidirectional Voltage Translation With No
    Direction Pin
  • Low 3.5-Ω ON-State Connection Between Input and
    Output Ports Provides Less Signal Distortion
  • Open-Drain I2C I/O Ports (SCL1, SDA1, SCL2,
    and SDA2)
  • 5-V Tolerant I2C I/O Ports to Support Mixed-Mode
    Signal Operation
  • High-Impedance SCL1, SDA1, SCL2, and SDA2
    Pins for EN = Low
  • Lock-Up-Free Operation for Isolation When
    EN = Low
  • Flow-Through Pinout for Ease of Printed-Circuit
    Board Trace Routing
  • Latch-Up Performance Exceeds 100 mA Per
    JESD 78, Class II
  • ESD Protection Exceeds JESD 22
    • 2000-V Human-Body Model (A114-A)
    • 200-V Machine Model (A115-A)
    • 1000-V Charged-Device Model (C101)
  • Qualified for Automotive Applications
  • AEC-Q100 Qualified With the Following Results:
    • Device Temperature Grade 2: –40°C to 105°C
    • Device HBM ESD Classification Level H2
    • Device CDM ESD Classification Level C4B
  • 2-Bit Bidirectional Translator for SDA and SCL
    Lines in Mixed-Mode I2C Applications
  • Compatible With I2C and SMBus
  • Less Than 1.5-ns Maximum Propagation Delay to
    Accommodate Standard-Mode and Fast-Mode I2C
    Devices and Multiple Masters
  • Allows Voltage-Level Translation Between
    • 1.2-V VREF1 and 1.8-V, 2.5-V, 3.3-V, or 5-V
      VREF2
    • 1.8-V VREF1 and 2.5-V, 3.3-V, or 5-V VREF2
    • 2.5-V VREF1 and 3.3-V, or 5-V VREF2
    • 3.3-V VREF1 and 5-V VREF2
  • Provides Bidirectional Voltage Translation With No
    Direction Pin
  • Low 3.5-Ω ON-State Connection Between Input and
    Output Ports Provides Less Signal Distortion
  • Open-Drain I2C I/O Ports (SCL1, SDA1, SCL2,
    and SDA2)
  • 5-V Tolerant I2C I/O Ports to Support Mixed-Mode
    Signal Operation
  • High-Impedance SCL1, SDA1, SCL2, and SDA2
    Pins for EN = Low
  • Lock-Up-Free Operation for Isolation When
    EN = Low
  • Flow-Through Pinout for Ease of Printed-Circuit
    Board Trace Routing
  • Latch-Up Performance Exceeds 100 mA Per
    JESD 78, Class II
  • ESD Protection Exceeds JESD 22
    • 2000-V Human-Body Model (A114-A)
    • 200-V Machine Model (A115-A)
    • 1000-V Charged-Device Model (C101)

This dual bidirectional I2C and SMBus voltage-level translator, with an enable (EN) input, is operational from 1.2-V to 3.3-V VREF1 and 1.8-V to 5.5-V VREF2.

The PCA9306-Q1 allows bidirectional voltage translations between 1.2 V and 5 V, without the use of a direction pin. The low ON-state resistance (ron) of the switch allows connections to be made with minimal propagation delay. When EN is high, the translator switch is ON, and the SCL1 and SDA1 I/O are connected to the SCL2 and SDA2 I/O, respectively, allowing bidirectional data flow between ports. When EN is low, the translator switch is off, and a high-impedance state exists between ports.

In I2C applications, the bus capacitance limit of 400 pF restricts the number of devices and bus length. Using the PCA9306-Q1 enables the system designer to isolate two halves of a bus; thus, more I2C devices or longer trace length can be accommodated.

The PCA9306-Q1 also can be used to run two buses, one at 400-kHz operating frequency and the other at 100-kHz operating frequency. If the two buses are operating at different frequencies, the 100-kHz bus must be isolated when the 400-kHz operation of the other bus is required. If the master is running at 400 kHz, the maximum system operating frequency may be less than 400 kHz because of the delays added by the repeater.

All channels have the same electrical characteristics, and there is minimal deviation from one output to another in voltage or propagation delay. This is a benefit over discrete transistor voltage translation solutions, because the fabrication of the switch is symmetrical. The translator provides excellent ESD protection to lower-voltage devices and at the same time protects less ESD-resistant devices.

This dual bidirectional I2C and SMBus voltage-level translator, with an enable (EN) input, is operational from 1.2-V to 3.3-V VREF1 and 1.8-V to 5.5-V VREF2.

The PCA9306-Q1 allows bidirectional voltage translations between 1.2 V and 5 V, without the use of a direction pin. The low ON-state resistance (ron) of the switch allows connections to be made with minimal propagation delay. When EN is high, the translator switch is ON, and the SCL1 and SDA1 I/O are connected to the SCL2 and SDA2 I/O, respectively, allowing bidirectional data flow between ports. When EN is low, the translator switch is off, and a high-impedance state exists between ports.

In I2C applications, the bus capacitance limit of 400 pF restricts the number of devices and bus length. Using the PCA9306-Q1 enables the system designer to isolate two halves of a bus; thus, more I2C devices or longer trace length can be accommodated.

The PCA9306-Q1 also can be used to run two buses, one at 400-kHz operating frequency and the other at 100-kHz operating frequency. If the two buses are operating at different frequencies, the 100-kHz bus must be isolated when the 400-kHz operation of the other bus is required. If the master is running at 400 kHz, the maximum system operating frequency may be less than 400 kHz because of the delays added by the repeater.

All channels have the same electrical characteristics, and there is minimal deviation from one output to another in voltage or propagation delay. This is a benefit over discrete transistor voltage translation solutions, because the fabrication of the switch is symmetrical. The translator provides excellent ESD protection to lower-voltage devices and at the same time protects less ESD-resistant devices.

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类型 标题 下载最新的英文版本 日期
* 数据表 PCA9306-Q1 Dual Bidirectional I2C Bus and SMBus Voltage-Level Translator 数据表 (Rev. B) 2016年 2月 8日
选择指南 Logic Guide (Rev. AB) 2017年 6月 12日
应用手册 AR without a name 2016年 9月 7日
应用手册 Understanding and Interpreting Standard-Logic Data Sheets (Rev. C) 2015年 12月 2日
应用手册 Understanding the I2C Bus 2015年 6月 30日
应用手册 Maximum Allowed Frequency on I2C Bus Using Repeaters 2015年 5月 15日
应用手册 I2C Bus Pull-Up Resistor Calculation 2015年 2月 13日
选择指南 逻辑器件指南 2014 (Rev. AA) 下载最新的英文版本 (Rev.AB) 2014年 11月 17日
应用手册 Programming Fun Lights With TI's TCA6507 2007年 11月 30日
应用手册 Semiconductor Packing Material Electrostatic Discharge (ESD) Protection 2004年 7月 8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。

评估板

PCA9306EVM — PCA9306 I2C 转换器评估模块

此 EVM 可用于评估采用 DCU 封装的 PCA9306 产品。I2C 总线可通过 SDA_1、SCL_1、SDA_2 和 SCL_2 测试点轻松访问,并对称放置以获得最佳性能。所有 IC 信号都由测试点连接提供。
现货
数量限制: 1
仿真模型

HSPICE MODEL OF PCA9306 (Rev. A)

SCEJ212A.ZIP (81 KB) - HSpice Model
仿真模型

PCA9306 IBIS Model (Rev. A)

SCPM002A.ZIP (54 KB) - IBIS Model
仿真工具

PSPICE-FOR-TI — PSPICE® for TI design and simulation tool

PSpice® for TI 可提供帮助评估模拟电路功能的设计和仿真环境。此功能齐全的设计和仿真套件使用 Cadence® 的模拟分析引擎。PSpice for TI 可免费使用,包括业内超大的模型库之一,涵盖我们的模拟和电源产品系列以及精选的模拟行为模型。

借助 PSpice for TI 的设计和仿真环境及其内置的模型库,您可对复杂的混合信号设计进行仿真。创建完整的终端设备设计和原型解决方案,然后再进行布局和制造,可缩短产品上市时间并降低开发成本。 

在 PSpice for TI 设计和仿真工具中,您可以搜索 TI (...)
仿真工具

TINA-TI — 基于 SPICE 的模拟仿真程序

TINA-TI 提供了 SPICE 所有的传统直流、瞬态和频域分析以及更多。TINA 具有广泛的后处理功能,允许您按照希望的方式设置结果的格式。虚拟仪器允许您选择输入波形、探针电路节点电压和波形。TINA 的原理图捕获非常直观 - 真正的“快速入门”。

TINA-TI 安装需要大约 500MB。直接安装,如果想卸载也很容易。我们相信您肯定会爱不释手。

TINA 是德州仪器 (TI) 专有的 DesignSoft 产品。该免费版本具有完整的功能,但不支持完整版 TINA 所提供的某些其他功能。

如需获取可用 TINA-TI 模型的完整列表,请参阅:SpiceRack - 完整列表 

需要 HSpice (...)

设计工具

I2C-DESIGNER — I2C designer tool

利用 I2C 设计器工具,可快速解决基于 I2C 设计中寻址、电压电平和频率方面的冲突。输入主输入端和从输入端,以自动生成 I2C 树活轻松构建自定义解决方案。此工具可在调试缺失确认、选择上拉电阻器和满足 I2C 总线最大容性负载方面提供指导,从而帮助设计人员节省时间并遵循 I2C 标准。
参考设计

TIDEP-01017 — TIDEP-01017

级联开发套件具有两个主要用例:
  1. 要使用 MMWCAS-DSP-EVM 作为捕获卡,并通过 mmWave Studio 工具完整评估 AWR2243 四芯片级联性能,请查看 TIDEP-01012 设计指南
  2. 要使用 MMWCAS-DSP-EVM 开发雷达实时 SW 应用,请查看 TIDEP-01017 设计指南

此参考设计为级联成像雷达系统奠定了处理基础。级联雷达设备可支持前端远距离 (LRR) 波束形成应用以及角级联和侧级联雷达和传感器融合系统。此参考设计为有资质的开发人员提供了设计材料,供开发人员创建用于开发和测试 ADAS (...)

参考设计

TIDA-00271 — 采用远程摄像机和雷达模块的 ADAS 传感器互连参考设计板

ADAS 传感器互连板适合需要将诸如摄像头、激光雷达或雷达模块之类的遥感器连接到中央处理 ECU 的应用。此板支持多达 3 个同轴电缆输入和 1 个 LVDS 双绞线数据输入,以及 3 条 FMC 电缆和 1 个板对板连接器作为处理 ECU 的数据输出。通过同轴电缆连接器(SMB 标准)连接的摄像头或其他传感器模块直接通过互连板的同轴电缆进行供电(同轴电缆供电)。由于采用适合所有 IC 和板载同轴电缆供电的独立完整电源解决方案,因此可将单个汽车电池或类似宽电压电源直接连接到 ADAS 传感器互连板上的电源连接器。板载 uC 和 LIN 接口用于对互连板进行控制和配置以及进行即插即用操作。
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VSSOP (DCU) 8 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

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