首頁 介面 I2C、I3C 與 SPI IC I2C 與 SPI 通用 I/O (GPIO)

TXE8116

現行

具有中斷、重設及 I/O 可配置暫存器的 16 位元 SPI 匯流排 I/O 擴展器

產品詳細資料

Number of I/Os 16 Features Configuration registers, Fail-safe, Interrupt pin, Reset pin Supply voltage (min) (V) 1.65 Supply voltage (max) (V) 5.5 Rating Catalog Frequency (max) (MHz) 10 Operating temperature range (°C) -40 to 125
Number of I/Os 16 Features Configuration registers, Fail-safe, Interrupt pin, Reset pin Supply voltage (min) (V) 1.65 Supply voltage (max) (V) 5.5 Rating Catalog Frequency (max) (MHz) 10 Operating temperature range (°C) -40 to 125
VSSOP (DGS) 24 29.89 mm² 6.1 x 4.9
  • Operating supply voltage range of 1.65V to 5.5V
  • Low standby current consumption of 2.3µA typical
  • SPI SCLK Frequency
    • 10MHz from 3.3V to 5.5V
    • 5MHz from 1.65V to 5.5V
  • Active-low reset input (RESET)
  • 5V tolerant input and output ports
  • Buit-in fail-safe I/O feature
  • Open-drain active-low interrupt output (INT)
  • Individual I/O control and the glitch filter supported on all inputs of the GPIOs
  • SPI daisy-chain supported
  • I/O reading burst mode supported
  • I/O polarity inversion supported
  • Bus-hold feature to maintain the last I/O state
  • Latched outputs with high-current drive capability for directly driving LEDs
  • Latch-up performance exceeds 100mA per JESD 78, class II
  • ESD protection exceeds JESD 22
    • 2000V Human-body model (A114-A)
    • 1000V Charged-device model (C101)
  • Operating supply voltage range of 1.65V to 5.5V
  • Low standby current consumption of 2.3µA typical
  • SPI SCLK Frequency
    • 10MHz from 3.3V to 5.5V
    • 5MHz from 1.65V to 5.5V
  • Active-low reset input (RESET)
  • 5V tolerant input and output ports
  • Buit-in fail-safe I/O feature
  • Open-drain active-low interrupt output (INT)
  • Individual I/O control and the glitch filter supported on all inputs of the GPIOs
  • SPI daisy-chain supported
  • I/O reading burst mode supported
  • I/O polarity inversion supported
  • Bus-hold feature to maintain the last I/O state
  • Latched outputs with high-current drive capability for directly driving LEDs
  • Latch-up performance exceeds 100mA per JESD 78, class II
  • ESD protection exceeds JESD 22
    • 2000V Human-body model (A114-A)
    • 1000V Charged-device model (C101)

The TXE81XX devices provide general purpose parallel input/output (I/O) expansion for the four wire Serial Peripheral Interface (SPI) protocol and is designed for 1.65V to 5.5V VCC operation.

The device supports 10MHz from 3.3V to 5.5V and 5MHz from 1.65V to 5.5V. I/O expanders, such as the TXE81XX, provide a simple solution when additional I/Os are needed for switches, sensors, push-buttons, LEDs, and fans.

The TXE81XX devices have I/O ports, which include additional features designed to enhance the I/O performance in terms of speed, power consumption, and flexibility. The additional features are: enable/disable pull-up and pull-down resistors, latchable inputs, maskable interrupt, interrupt status register, programmable open-drain or push-pull outputs, and a fail-safe register mode which is enabled by the FAIL-SAFE pin.

The TXE81XX devices provide general purpose parallel input/output (I/O) expansion for the four wire Serial Peripheral Interface (SPI) protocol and is designed for 1.65V to 5.5V VCC operation.

The device supports 10MHz from 3.3V to 5.5V and 5MHz from 1.65V to 5.5V. I/O expanders, such as the TXE81XX, provide a simple solution when additional I/Os are needed for switches, sensors, push-buttons, LEDs, and fans.

The TXE81XX devices have I/O ports, which include additional features designed to enhance the I/O performance in terms of speed, power consumption, and flexibility. The additional features are: enable/disable pull-up and pull-down resistors, latchable inputs, maskable interrupt, interrupt status register, programmable open-drain or push-pull outputs, and a fail-safe register mode which is enabled by the FAIL-SAFE pin.

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 2
類型 標題 日期
* Data sheet TXE81XX 16-Bit and 24-Bit SPI Bus I/O Expander with Interrupt Output, Reset Input, and I/O Configuration Registers datasheet (Rev. A) PDF | HTML 2025年 10月 22日
Application brief Understanding the SPI Bus PDF | HTML 2025年 8月 22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

IO-EXP-ADAPTER-EVM — IO 擴展器轉接器評估模組

IO-EXP-ADAPTER-EVM 是一個評估模組,可以拆分成四塊獨立的 PCB 進行測試和偵錯。IO-EXP-ADAPTER-EVM 支援我們 I2C 和 IO 擴展器產品組合中的多種封裝類型。
使用指南: PDF | HTML
TI.com 無法提供
開發板

TXE81XXEVM — TXE81XX 評估模組

TXE81XXEVM 可用於評估 TXE81XX 系列 SPI I/O 擴展器。此 EVM 支援採用引線封裝類型 DGS(24 和 32)與 DGG (56) 的 TXE8116、TXE8124 和 TXE8148(分別為 16 位元、24 位元和 48 位元)。EVM 提供多個測試點和接頭,以配合每個擴展器提供的大量 I/O。提供公頭和母頭類型組合,便於輕鬆進行分流連接。

使用指南: PDF | HTML
TI.com 無法提供
模擬工具

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

PSpice® for TI 是有助於評估類比電路功能的設計和模擬環境。這款全功能設計和模擬套件使用 Cadence® 的類比分析引擎。PSpice for TI 包括業界最大的模型庫之一,涵蓋我們的類比和電源產品組合,以及特定類比行為模型,且使用無需支付費用。

PSpice for TI 設計和模擬環境可讓您使用其內建函式庫來模擬複雜的混合訊號設計。在進行佈局和製造之前,建立完整的終端設備設計和解決方案原型,進而縮短上市時間並降低開發成本。 

在 PSpice for TI 設計與模擬工具中,您可以搜尋 TI (...)
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
封裝 針腳 CAD 符號、佔位空間與 3D 模型
VSSOP (DGS) 24 Ultra Librarian

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
  • 認證摘要
  • 進行中持續性的可靠性監測
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