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I2C 與 SPI 通用 I/O (GPIO)

TCA9539-Q1

現行

具有中斷、重設和配置暫存器的汽車 16 位元 1.65 至 3.6-V I2C/SMBus I/O 擴展器

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產品規格表

現在提供此產品的更新版本

open-in-new 比較替代產品
針腳對針腳的功能與所比較的裝置相同。
TCA9539A-Q1 現行 具有中斷、重設及配置暫存器的車用 16 位元 1.65 至 5.5V I²C/SMBus I/O 擴展器 Wider supply operation range (VCC) up to 5.5V

TCA9539-Q1

現行
產品規格表 立即訂購

產品詳細資料

Number of I/Os 16 Features Configuration registers, Interrupt pin, Reset pin Addresses 4 Rating Automotive Frequency (max) (MHz) 0.4 Operating temperature range (°C) -40 to 125 TI functional safety category Functional Safety-Capable
Number of I/Os 16 Features Configuration registers, Interrupt pin, Reset pin Addresses 4 Rating Automotive Frequency (max) (MHz) 0.4 Operating temperature range (°C) -40 to 125 TI functional safety category Functional Safety-Capable
TSSOP (PW) 24 49.92 mm² (7.8 mm × 6.4 mm)
  • AEC-Q100 (Grade 1): Qualified for automotive applications
  • Functional Safety-Capable
  • I2C to parallel port expander
  • Open-drain active-low interrupt output
  • Active-low reset input
  • 5 V tolerant input and output ports
  • Compatible with most microcontrollers
  • 400 kHz Fast I2C bus
  • Polarity inversion register
  • Internal power-on reset
  • No glitch on power up
  • Address by two hardware address pins for use of up to four devices
  • Latched outputs for directly driving LEDs
  • 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)
  • AEC-Q100 (Grade 1): Qualified for automotive applications
  • Functional Safety-Capable
  • I2C to parallel port expander
  • Open-drain active-low interrupt output
  • Active-low reset input
  • 5 V tolerant input and output ports
  • Compatible with most microcontrollers
  • 400 kHz Fast I2C bus
  • Polarity inversion register
  • Internal power-on reset
  • No glitch on power up
  • Address by two hardware address pins for use of up to four devices
  • Latched outputs for directly driving LEDs
  • 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 TCA9539-Q1 is a 24-pin device that provides 16 bits of general purpose parallel input and output (I/O) expansion for the two-line bidirectional I2C bus (or SMBus protocol). The device can operate with a power supply voltage (VCC) range from 1.65 V to 3.6 V. The device supports 100 kHz (I2C Standard mode) and 400 kHz (I2C Fast mode) clock frequencies. I/O expanders such as the TCA9539-Q1 provide a simple solution when additional I/Os are needed for switches, sensors, push-buttons, LEDs, fans, and other similar devices.

The features of the TCA9539-Q1 include an interrupt that is generated on the INT pin whenever an input port changes state. The A0 and A1 hardware selectable address pins allow up to four TCA9539-Q1 devices on the same I2C bus. The device can be reset to its default state by cycling the power supply and causing a power-on reset. Also, the TCA9539-Q1 has a hardware RESET pin that can be used to reset the device to its default state.

The TCA9539-Q1 I2C I/O expander is qualified for automotive applications.

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The TCA9539-Q1 is a 24-pin device that provides 16 bits of general purpose parallel input and output (I/O) expansion for the two-line bidirectional I2C bus (or SMBus protocol). The device can operate with a power supply voltage (VCC) range from 1.65 V to 3.6 V. The device supports 100 kHz (I2C Standard mode) and 400 kHz (I2C Fast mode) clock frequencies. I/O expanders such as the TCA9539-Q1 provide a simple solution when additional I/Os are needed for switches, sensors, push-buttons, LEDs, fans, and other similar devices.

The features of the TCA9539-Q1 include an interrupt that is generated on the INT pin whenever an input port changes state. The A0 and A1 hardware selectable address pins allow up to four TCA9539-Q1 devices on the same I2C bus. The device can be reset to its default state by cycling the power supply and causing a power-on reset. Also, the TCA9539-Q1 has a hardware RESET pin that can be used to reset the device to its default state.

The TCA9539-Q1 I2C I/O expander is qualified for automotive applications.

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技術文件

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重要文件 類型 標題 格式選項 下載最新的英文版本 日期
* 資料表 TCA9539-Q1 Automotive Low Voltage 16-Bit I2C and SMBus Low-Power I/O Expander with Interrupt Output, Reset Pin, and Configuration Registers datasheet (Rev. D) PDF | HTML 2021/10/8
應用說明 From TCA9539-Q1 to TCA9539A-Q1: A Seamless Upgrade Path, Designed to Drop-in, Engineered to Do More PDF | HTML 2026/1/15
應用說明 I2C: What is the Auto Increment Feature? PDF | HTML 2024/7/5
應用說明 Understanding Transient Drive Strength vs. DC Drive Strength in Level-Shifters (Rev. A) PDF | HTML 2024/7/3
Application brief Zonal Architecture and MCU I/O Expansion PDF | HTML 2023/2/2
功能安全資訊 TCA9539-Q1 Functional Safety, FIT Rate, Failure Mode Distribution and Pin FMA (Rev. A) PDF | HTML 2021/4/20
應用說明 I2C Dynamic Addressing 2019/4/25
應用說明 Choosing the Correct I2C Device for New Designs PDF | HTML 2016/9/7
應用說明 Understanding the I2C Bus PDF | HTML 2015/6/30
應用說明 Maximum Clock Frequency of I2C Bus Using Repeaters 2015/5/15
應用說明 I2C Bus Pull-Up Resistor Calculation PDF | HTML 2015/2/13

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

IO-EXPANDER-EVM — IO-EXPANDER-EVM：I2C 和 SMBus IO 擴展器評估模組

IO 擴展器評估模組 (EVM) 可讓您評估 TI 的 SMBus 與 I2C IO 擴展器線路裝置產品組合。TCA6424A 和 TCA9539 都安裝在電路板上。24 針腳 TSSOP 元件封裝還支援 TCA6408A、TCA6416A、TCA9534、TCA9534A、TCA9535、TCA9538, TCA9554、TCA9554A 和 TCA9555。

使用指南: PDF
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模擬型號

TCA9539 IBIS Model

SCPM025.ZIP (98 KB) - IBIS 模型
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設計工具

I2C-DESIGNER — I2C 設計工具

使用 I2C 設計工具快速解決 I2C 設計中在定址、電壓位準和頻率方面的衝突。輸入主裝置和從屬裝置的參數，自動產生 I2C 樹狀結構，或輕鬆建置自訂解決方案。此工具將協助設計人員節省時間並符合 I2C 標準，提供關於偵錯缺失確認、選擇上拉電阻以及滿足 I2C 匯流排最大電容負載的指導。 
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參考設計

TIDA-00296 — 汽車車身控制模組驅動器參考設計

TIDA-00296 是一款參考設計，重點展現 TI 的高壓側與低壓側繼電器、馬達和負載驅動器產品組合。此設計所選用的負載元件（門鎖、車窗升降器、座椅加熱器、HVAC、燈具及 LED）旨在展示 BCM 可驅動的負載範圍，並闡明 TI 解決方案如何應用於這些領域。

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參考設計

TIDA-00580 — 通過車規認證的 16 位元旋轉相位差編碼器參考設計

在許多情況下，人們更喜歡在觸控式螢幕上使用旋鈕。  此解決方案減少與微控制器的必要連接，監控旋轉相位差編碼器的旋轉方向和距離。

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封裝 針腳 CAD 符號、佔位空間與 3D 模型
TSSOP (PW) 24 Ultra Librarian
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