首頁 介面 I2C & I3C ICs I2C & I3C level shifters, buffers & hubs

PCA9306

現行

2 位元雙向 400-kHz I2C/SMBus 電壓電平轉換器

產品詳細資料

Features Enable pin Protocols I2C Frequency (max) (MHz) 0.4 VCCA (min) (V) 1.2 VCCA (max) (V) 3.3 VCCB (min) (V) 1.8 VCCB (max) (V) 5.5 Supply restrictions VCCA <= VCCB Rating Catalog Operating temperature range (°C) -40 to 85
Features Enable pin Protocols I2C Frequency (max) (MHz) 0.4 VCCA (min) (V) 1.2 VCCA (max) (V) 3.3 VCCB (min) (V) 1.8 VCCB (max) (V) 5.5 Supply restrictions VCCA <= VCCB Rating Catalog Operating temperature range (°C) -40 to 85
DSBGA (YZT) 8 1.9404 mm² 1.98 x 0.98 SSOP (DCT) 8 11.8 mm² 2.95 x 4 VSSOP (DCU) 8 6.2 mm² 2 x 3.1 X2SON (DQE) 8 1.4 mm² 1.4 x 1
  • 2-Bit bidirectional translator for SDA and SCL lines in mixed-mode I 2C Applications
  • I 2C and SMBus compatible
  • Less than 1.5-ns maximum propagation delay to accommodate standard-mode and fast-mode I 2C devices and multiple controllers
  • Allows voltage-level translation between
    • 1.2-V V REF1 and 1.8-V, 2.5-V, 3.3-V, or 5-V V REF2
    • 1.8-V V REF1 and 2.5-V, 3.3-V, or 5-V V REF2
    • 2.5-V V REF1 and 3.3-V or 5-V V REF2
    • 3.3-V V REF1 and 5-V V REF2
  • Provides bidirectional voltage translation with no direction pin
  • Low 3.5-Ω ON-state resistance between input and output ports provides less signal distortion
  • Open-drain I 2C I/O ports (SCL1, SDA1, SCL2, and SDA2)
  • 5-V Tolerant I 2C I/O ports to support mixed-mode signal operation
  • High-impedance SCL1, SDA1, SCL2, and SDA2 pins for EN = low
  • Lockup-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)
    • 1000-V Charged-device model (C101)
  • 2-Bit bidirectional translator for SDA and SCL lines in mixed-mode I 2C Applications
  • I 2C and SMBus compatible
  • Less than 1.5-ns maximum propagation delay to accommodate standard-mode and fast-mode I 2C devices and multiple controllers
  • Allows voltage-level translation between
    • 1.2-V V REF1 and 1.8-V, 2.5-V, 3.3-V, or 5-V V REF2
    • 1.8-V V REF1 and 2.5-V, 3.3-V, or 5-V V REF2
    • 2.5-V V REF1 and 3.3-V or 5-V V REF2
    • 3.3-V V REF1 and 5-V V REF2
  • Provides bidirectional voltage translation with no direction pin
  • Low 3.5-Ω ON-state resistance between input and output ports provides less signal distortion
  • Open-drain I 2C I/O ports (SCL1, SDA1, SCL2, and SDA2)
  • 5-V Tolerant I 2C I/O ports to support mixed-mode signal operation
  • High-impedance SCL1, SDA1, SCL2, and SDA2 pins for EN = low
  • Lockup-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)
    • 1000-V Charged-device model (C101)

The PCA9306 device is a dual bidirectional I 2C and SMBus voltage-level translator with an enable (EN) input, and is operational from 1.2-V to 3.3-V V REF1 and 1.8-V to 5.5-V V REF2.

The PCA9306 device allows bidirectional voltage translations between 1.2 V and 5 V, without the use of a direction pin. The low ON-state resistance (R ON) 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 addition to voltage translation, the PCA9306 device can be used to isolate a 400-kHz bus from a 100-kHz bus by controlling the EN pin to disconnect the slower bus during fast-mode communication.

The PCA9306 device is a dual bidirectional I 2C and SMBus voltage-level translator with an enable (EN) input, and is operational from 1.2-V to 3.3-V V REF1 and 1.8-V to 5.5-V V REF2.

The PCA9306 device allows bidirectional voltage translations between 1.2 V and 5 V, without the use of a direction pin. The low ON-state resistance (R ON) 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 addition to voltage translation, the PCA9306 device can be used to isolate a 400-kHz bus from a 100-kHz bus by controlling the EN pin to disconnect the slower bus during fast-mode communication.

下載 觀看有字幕稿的影片 影片

技術文件

star =TI 所選的此產品重要文件
找不到結果。請清除您的搜尋條件,然後再試一次。
檢視所有 17
類型 標題 日期
* Data sheet PCA9306 Dual Bidirectional I2C Bus and SMBus Voltage-Level Translator datasheet (Rev. O) PDF | HTML 2023年 9月 6日
Application brief Integrated vs. Discrete Open Drain Level Translation PDF | HTML 2024年 1月 9日
Certificate PCA9306EVM EU Declaration of Conformity (DoC) 2023年 6月 29日
Application brief Best Practices: I2C Devices on an I3C Shared Bus PDF | HTML 2023年 3月 30日
Application note How to Debug I2C PDF | HTML 2023年 3月 30日
Product overview Translate Voltages for I2C for PCA9306 LSF0102 TXS0102 PDF | HTML 2022年 9月 14日
EVM User's guide PCA9306 I2C Buffer Evaluation Module 2018年 10月 26日
Selection guide Logic Guide (Rev. AB) 2017年 6月 12日
Technical article Intro to I2C: what the Internet doesn’t tell you PDF | HTML 2016年 11月 24日
Application note Choosing the Correct I2C Device for New Designs PDF | HTML 2016年 9月 7日
Selection guide I2C Infographic Flyer 2015年 12月 3日
Application note Understanding and Interpreting Standard-Logic Data Sheets (Rev. C) 2015年 12月 2日
Application note Understanding the I2C Bus PDF | HTML 2015年 6月 30日
Application note Maximum Clock Frequency of I2C Bus Using Repeaters 2015年 5月 15日
Application note I2C Bus Pull-Up Resistor Calculation PDF | HTML 2015年 2月 13日
Application note Programming Fun Lights With TI's TCA6507 2007年 11月 30日
Application note Semiconductor Packing Material Electrostatic Discharge (ESD) Protection 2004年 7月 8日

設計與開發

如需其他條款或必要資源,請按一下下方的任何標題以檢視詳細頁面 (如有)。

開發板

PCA9306EVM — PCA9306 I2C 轉換器評估模組

This EVM can be used to evaluate the PCA9306 product in the DCU package. The I2C buses are easily accessed via SDA_1, SCL_1, SDA_2, and SCL_2 test points, and symmetrically laid out for optimal performance. All IC signals are available through test point connections.
使用指南: PDF
TI.com 無法提供
開發板

TCA6507EVM — TCA6507 7 位元脈衝波調變 LED 驅動器評估模組

TCA6507 EVM 配備 RGB LED 和 4 個綠色 LED 測試裝置的功能。板載位準移位器用於在主機與 TCA6507 的不同邏輯位準之間轉換。

使用指南: PDF | HTML
TI.com 無法提供
模擬型號

HSPICE MODEL OF PCA9306 (Rev. A)

SCEJ212A.ZIP (81 KB) - HSpice Model
模擬型號

PCA9306 IBIS Model (Rev. A)

SCPM002A.ZIP (54 KB) - IBIS Model
設計工具

I2C-DESIGNER — I2C 設計工具

Use the I2C Designer tool to quickly resolve conflicts in addressing, voltage level and frequency in I2C based designs. Enter master and slave inputs to automatically generate an I2C tree or easily build a custom solution. This tool will help designers save time and comply with the I2C standard (...)
模擬工具

PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
模擬工具

TINA-TI — 基於 SPICE 的類比模擬程式

TINA-TI provides all the conventional DC, transient and frequency domain analysis of SPICE and much more. TINA has extensive post-processing capability that allows you to format results the way you want them. Virtual instruments allow you to select input waveforms and probe circuit nodes voltages (...)
使用指南: PDF
參考設計

TIDA-00998 — 適用於高架故障指示燈的能源採集和故障指示燈子系統參考設計

This reference design shows multiple architectures for extending primary battery life using a secondary battery or supercapacitor with energy harvested from a current transformer (CT) or solar cells. Optimal power management is done using efficient LED drivers to drive series or parallel (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDM-RF430FRLSENSE — RF430FRL152H NFC 溫度及燈光感測器參考設計

This reference design provides a platform to evaluate the RF430FRL152H NFC Sensor Interface Transponder.  Directly out of the box, thermistor and photo transistor measurements can be communicated to an NFC enabled smart phone or other NFC/RFID Reader device.  This reference design can be (...)
電路圖: PDF
參考設計

TIDEP0046 — 基於 AM57x 使用 OpenCL 進行 DSP 加速的 Monte-Carlo 模擬參考設計

TI’s high performance ARM® Cortex®-A15 based AM57x processors also integrate C66x DSPs. These DSPs were designed to handle high signal and data processing tasks that are often required by industrial, automotive and financial applications. The AM57x OpenCL implementation makes it easy (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDEP0047 — 採用 TI AM57x 處理器參考設計的電源和熱能設計考量

This is a reference design based on the AM57x processor and companion TPS659037 power management integrated circuit (PMIC).  This design specifically highlights important power and thermal design considerations and techniques for systems designed with AM57x and TPS659037.  It includes (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDA-01182 — 具有自動音訊控制 1S1P BMS 的可攜式音訊放大器參考設計

High performance, 10Watt (5W per speaker) portable audio amplifier that includes everything you need to implement a BMS (Battery Management Solution) for a portable audio amplifier (including a Charger, Fuel (Gas) Gauge and Protection for a 1S1P 18650 2400mAh Lithium battery) for a Class D Audio (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDEP0081 — 使用 66AK2L06 JESD204B 連接 ADC32RF80 的寬頻接收器參考設計

For wideband receiver system developers currently using FPGA or ASIC to connect High Speed data converters to a baseband processor, who need faster time to market with increased performance and significant reduction in cost, power, and size. This reference design includes the first widely available (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDEP0042 — 使用 TPS544C25 和 PMBus 為 K2E 產生 AVS SmartReflex 核心電壓的參考設計

The K2E requires the use of AVS SmartReflex control for the CVDD core voltage. This design provides method of generating the proper voltage using software and the PMBus interface of the TPS544C25. The circuit can be implemented on the XEVMK2EX.
Design guide: PDF
電路圖: PDF
參考設計

TIDA-00403 — 使用 TLV320AIC3268 miniDSP 轉碼器的超音波距離量測參考設計

The TIDA-00403 reference design uses off-the-shelf EVMs for ultrasonic distance measurement solutions using algorithms within the TLV320AIC3268 miniDSP. In conjunction with TI’s PurePath Studio design suite, a robust and user configurable ultrasonic distance measurement system can be designed (...)
Design guide: PDF
電路圖: PDF
參考設計

TIDEP0036 — 使用 TMS320C6657 實作高效率 OPUS 轉碼器解決方案的參考設計

The TIDEP0036 reference design provides an example of the ease of running TI optimized Opus encoder/decoder on the TMS320C6657 device. Since Opus supports a a wide range of bit rates, frame sizes and sampling rates, all with low delay, it has applicability for voice communications, networked audio (...)
Design guide: PDF
電路圖: PDF
封裝 引腳 下載
DSBGA (YZT) 8 檢視選項
SSOP (DCT) 8 檢視選項
VSSOP (DCU) 8 檢視選項
X2SON (DQE) 8 檢視選項

訂購與品質

內含資訊:
  • RoHS
  • REACH
  • 產品標記
  • 鉛塗層/球物料
  • MSL 等級/回焊峰值
  • MTBF/FIT 估算值
  • 材料內容
  • 資格摘要
  • 進行中可靠性監測
內含資訊:
  • 晶圓廠位置
  • 組裝地點

建議產品可能具有與此 TI 產品相關的參數、評估模組或參考設計。

支援與培訓

內含 TI 工程師技術支援的 TI E2E™ 論壇

內容係由 TI 和社群貢獻者依「現狀」提供,且不構成 TI 規範。檢視使用條款

若有關於品質、封裝或訂購 TI 產品的問題,請參閱 TI 支援。​​​​​​​​​​​​​​

影片