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TCA6416A

現行

具中斷、重設和配置暫存器的 16 位元轉換 1.65 至 5.5-V I2C/SMBus I/O 擴展器

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TCAL6416 現行 具有中斷、重設和快捷 I/O 配置的 16 位轉換 I²C-bus/SMBus I/O 擴展器 Enhanced version of TCA6416A with wider supply voltage range and agile I/O configuration registers

產品詳細資料

Number of I/Os 16 Features Adjustable I/O level, Configuration registers, Interrupt pin, Reset pin Addresses 2 Rating Catalog Frequency (max) (MHz) 0.4 Operating temperature range (°C) -40 to 85
Number of I/Os 16 Features Adjustable I/O level, Configuration registers, Interrupt pin, Reset pin Addresses 2 Rating Catalog Frequency (max) (MHz) 0.4 Operating temperature range (°C) -40 to 85
WQFN (RTW) 24 16 mm² (4 mm × 4 mm) TSSOP (PW) 24 49.92 mm² (7.8 mm × 6.4 mm)
  • I2C to parallel port expander
  • Operating power-supply voltage range of 1.65 V to 5.5 V
  • Allows bidirectional voltage-level translation and GPIO expansion between 1.8-V, 2.5-V, 3.3-V, and 5-V I2C Bus and P-ports
  • Low standby current consumption of 3 µA
  • 5-V Tolerant I/O ports
  • 400-kHz Fast I2C bus
  • Hardware address pin allows two TCA6416A devices on the same I2C/SMBus bus
  • Active-low reset input ( RESET)
  • Open-drain active-low interrupt output ( INT)
  • Input/output configuration register
  • Polarity inversion register
  • Internal power-on reset
  • Power-up with all channels configured as inputs
  • No glitch on power up
  • Noise filter on SCL and SDA inputs
  • Latched outputs with high-current drive maximum capability 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)
    • 200-V Machine model (A115-A)
    • 1000-V Charged-device model (C101)
  • I2C to parallel port expander
  • Operating power-supply voltage range of 1.65 V to 5.5 V
  • Allows bidirectional voltage-level translation and GPIO expansion between 1.8-V, 2.5-V, 3.3-V, and 5-V I2C Bus and P-ports
  • Low standby current consumption of 3 µA
  • 5-V Tolerant I/O ports
  • 400-kHz Fast I2C bus
  • Hardware address pin allows two TCA6416A devices on the same I2C/SMBus bus
  • Active-low reset input ( RESET)
  • Open-drain active-low interrupt output ( INT)
  • Input/output configuration register
  • Polarity inversion register
  • Internal power-on reset
  • Power-up with all channels configured as inputs
  • No glitch on power up
  • Noise filter on SCL and SDA inputs
  • Latched outputs with high-current drive maximum capability 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)
    • 200-V Machine model (A115-A)
    • 1000-V Charged-device model (C101)

The TCA6416A is a 24-pin device that provides 16-bits of general purpose parallel input/output (I/O) expansion for the two-line bidirectional I2C bus (or SMBus) protocol. The device can operate with a power supply voltage ranging from 1.65 V to 5.5 V on the I2C bus side (VCCI) and a power supply voltage ranging from 1.65 V to 5.5 V on the P-port side (VCCP).

The device supports both 100-kHz (Standard-mode) and 400-kHz (Fast-mode) clock frequencies. I/O expanders such as the TCA6416A provide a simple solution when additional I/Os are needed for switches, sensors, push-buttons, LEDs, fans, and so forth.

The TCA6416A is a 24-pin device that provides 16-bits of general purpose parallel input/output (I/O) expansion for the two-line bidirectional I2C bus (or SMBus) protocol. The device can operate with a power supply voltage ranging from 1.65 V to 5.5 V on the I2C bus side (VCCI) and a power supply voltage ranging from 1.65 V to 5.5 V on the P-port side (VCCP).

The device supports both 100-kHz (Standard-mode) and 400-kHz (Fast-mode) clock frequencies. I/O expanders such as the TCA6416A provide a simple solution when additional I/Os are needed for switches, sensors, push-buttons, LEDs, fans, and so forth.

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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 TCA6416A Low-Voltage 16-Bit I2C and SMBus I/O Expander With Voltage Translation, Interrupt Output, Reset Input, and Configuration Registers datasheet (Rev. F) PDF | HTML 2023/1/30
應用說明 How to Configure an I2C Push-Pull IO Expander to Operate as Open Drain PDF | HTML 2024/7/17
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
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
選擇指南 I2C Infographic Flyer 2015/12/3
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

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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。TCA6424ATCA9539 都安裝在電路板上。24 針腳 TSSOP 元件封裝還支援 TCA6408ATCA6416ATCA9534TCA9534ATCA9535TCA9538, TCA9554TCA9554ATCA9555

使用指南: PDF
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韌體

SLVC564 — I/O Expander Software and Firmware Package

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模擬型號

TCA6416A IBIS Model

SCPM030.ZIP (119 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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封裝 針腳 CAD 符號、佔位空間與 3D 模型
WQFN (RTW) 24 Ultra Librarian
TSSOP (PW) 24 Ultra Librarian

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