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
- 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.
技術文件
| 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
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IO-EXP-ADAPTER-EVM — IO 擴展器轉接器評估模組
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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TINA-TI — 基於 SPICE 的類比模擬程式
| 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
- 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
- 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。