TXE8116
- 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
- SPI daisy-chain supported
- SPI read and write with burst mode
- Multi-port SPI command to configure multiple ports simultaneously
- IOFF supported input port pins
- Active-low reset input (RESET)
- Open-drain active-low interrupt output (INT)
- Interrupt mask and status per I/O
- Interrupt status per port
- Built-in fail-safe I/O feature
- Individual I/O configuration for
- Input and Output function
- Polarity inversion
- Output push-pull and open-drain selection
- Integrated pull-up or pull-down selection
- Bus-hold feature to maintain last I/O state
- Glitch filter enable selection
- Latched outputs with 10mA 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 TXE8116 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 TXE8116 supports both standard point-to-point communication along with daisy-chaining of multiple devices.
The device supports 10MHz from 3.3V to 5.5V and 5MHz from 1.65V to 5.5V. I/O expanders, such as the TXE8116, are designed for when additional I/Os are needed for switches, sensors, push-buttons, LEDs, and fans.
The TXE8116 devices has 2 I/O ports of 8 IOs each, which include additional features designed to enhance the I/O performance in terms of speed, power consumption, and flexibility. These include per I/O programmable open-drain or push-pull outputs, programmable pull-up and pull-down resistors, bus-hold latchable inputs, maskable interrupt, interrupt status register, glitch filter and a fail-safe register mode which is enabled by the FAIL-SAFE pin.
技術文件
| 重要文件 | 類型 | 標題 | 格式選項 | 日期 |
|---|---|---|---|---|
| * | Data sheet | TXE8116 16-Bit SPI Bus I/O Expander with Interrupt Output, Reset Input, and I/O Configuration Registers datasheet (Rev. B) | PDF | HTML | 2026年 6月 16日 |
| Functional safety information | TXE8116 Functional Safety FIT Rate, FMD and Pin FMA | PDF | HTML | 2026年 4月 15日 | |
| Application brief | Understanding the SPI Bus | PDF | HTML | 2025年 8月 22日 |
設計與開發
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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。
PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具
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。
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| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| VQFN (RGE) | 24 | Ultra Librarian |
| VSSOP (DGS) | 24 | Ultra Librarian |
訂購與品質
- 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
- 進行中的可靠性監測
- 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。