韌體
產品規格表
TCA9534A
- Low Standby Current Consumption
- I2C to Parallel Port Expander
- Open-Drain Active-Low Interrupt Output
- Operating Power-Supply Voltage Range of 1.65 V to 5.5 V
- 5-V Tolerant I/O Ports
- 400-kHz Fast I2C Bus
- Three Hardware Address Pins Allow up to Eight Devices on the I2C/SMBus
- Input and 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/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)
- 1000-V Charged-Device Model (C101)
The TCA9534A is a 16-pin device that provides 8 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 ranging from 1.65 V to 5.5 V, which allows for use with a wide range of devices. The device supports both 100-kHz (Standard-mode) and 400-kHz (Fast-mode) clock frequencies. I/O expanders such as the TCA9534A 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 TCA9534A include an interrupt that is generated on the INT pin. This allows the master to know when an input port changes state. The A0, A1, and A2 hardware selectable address pins allow up to eight TCA9534A devices on the same I2C bus. The device can also be reset to its default sate by cycling the power supply and causing a power-on reset.
技術文件
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檢視所有 8 | 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | TCA9534A Low Voltage 8-Bit I2C and SMBUS Low-Power I/O Expander With Interrupt Output and Configuration Registers datasheet (Rev. C) | PDF | HTML | 2017年 1月 19日 |
| Application note | Understanding Transient Drive Strength vs. DC Drive Strength in Level-Shifters (Rev. A) | PDF | HTML | 2024年 7月 3日 | |
| Application note | I2C Dynamic Addressing | 2019年 4月 25日 | ||
| Application note | Choosing the Correct I2C Device for New Designs | PDF | HTML | 2016年 9月 7日 | |
| Application note | Understanding the I2C Bus | PDF | HTML | 2015年 6月 30日 | |
| Application note | Maximum Clock Frequency of I2C Bus Using Repeaters | 2015年 5月 15日 | ||
| Application note | I2C Bus Pull-Up Resistor Calculation | PDF | HTML | 2015年 2月 13日 | |
| EVM User's guide | I/O Expander EVM User's Guide (Rev. A) | 2014年 7月 25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)。
設計工具
I2C-DESIGNER — I2C 設計工具
Use the I2C Designer tool to quickly resolve conflicts in addressing, voltage level and frequency in I2C based designs. Enter master and slave inputs to automatically generate an I2C tree or easily build a custom solution. This tool will help designers save time and comply with the I2C standard (...)
模擬工具
PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具
PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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
參考設計
TIDA-060039 — 電感式觸控及磁性轉盤非接觸式使用者介面參考設計
此參考設計採用電感及霍爾效應感測技術以提供人機介面。電感式感測裝置可在無縫表面建立八個不同的觸控按鈕，而霍爾效應感測器則可用於建立磁性轉盤，其可轉動並用作額外按鈕。
使用感應式感測觸控按鈕提供完整的解決方案，該解決方案使用按壓之力來決定按鈕的按壓動作。這使觸控按鈕可以與手套一起使用，同時忽略環境因素，如按鈕表面髒污或損壞。霍爾效應感測器轉盤可產生非接觸式旋轉，與電位計或旋轉編碼器等傳統接觸式實作方式相比，其磨損與撕裂程度有所改善。
Design guide: PDF
參考設計
TIDA-01406 — 高能源效率隔離式 CANopen 介面參考設計
CAN and CANopen are legacy fieldbus protocols used in many applications in factory automation. Whenever high voltage could damage the end equipment there is need for isolation. Today’s smart factories utilize several energy efficient automation nodes. This reference design, which (...)
參考設計
TIDA-01022 — 適用於 DSO、雷達和 5G 無線測試系統的靈活 3.2-GSPS 多通道 AFE 參考設計
This high speed multi-channel data capture reference design enables optimum system performance. System designers needs to consider critical design parameters like clock jitter and skew for high speed multi-channel clock generation, which affects overall system SNR, SFDR, channel to channel skew (...)
參考設計
TIDA-01027 — 在 12.8 GSPS 資料採集系統中發揮最大效能的低雜訊電源供應參考設計
This reference design demonstrates an efficient, low-noise five-rail power supply design for very high-speed Data Acquisition (DAQ) systems capable of > 12.8 GSPS. The power supply DC/DC converters are frequency-synchronized and phase-shifted in order to minimize input current ripple and (...)
參考設計
TIDA-01028 — 適用於高速示波器和寬頻帶數位器的 12.8-GSPS 類比前端參考設計
This reference design provides a practical example of interleaved RF-sampling analog-to-digital converters (ADCs) to achieve a 12.8-GSPS sampling rate. This is done by time interleaving two RF-sampling ADCs. Interleaving requires a phase shift between the ADCs, which this reference design achieves (...)
參考設計
TIDA-010128 — 適用於 12 位元數位器的可擴充 20.8 GSPS 參考設計
This reference design describes a 20.8 GSPS sampling system using RF sampling analog-to-digital converters (ADCs) in time interleaved configuration. Time interleaving method is a proven and traditional way of increasing sample rate, however, matching individual ADCs offset, gain and sampling time (...)
參考設計
TIDA-010122 — 適用於多通道射頻系統的參考設計同步數據轉換器 DDC 和 NCO 功能
此參考設計可解決與新興 5G 適配應用相關，例如大規模多輸入多輸出 (mMIMO)、相位陣列雷達與通訊酬載等應用相關的同步設計挑戰。一般 RF 前端包含天線、低雜訊放大器 (LNA)、混波器、類比網域中的本地振盪器 (LO) 及類比轉數位轉換器、數值控制振盪器 (NCO) 和數位降轉換器 (DDC)。為了達到整體系統同步化，這些數位區塊必須與系統時鐘同步。本參考設計採用 ADC12DJ3200 資料轉換器，透過同步處理晶片內建 NCO 與 SYNC ~ 並使用無雜訊孔徑延遲調整 (tAD 調整) 功能，在多個接收器之間達到小於 5-ps 的頻道間偏斜的效果，以進一步降低偏斜。此設計也具備搭載 (...)
參考設計
TIDA-010132 — 適用於雷達應用的多通道 RF 收發器參考設計
此參考設計為 8 通道類比前端 (AFE)，採用兩個 AFE7444 4 通道 RF 收發器和 LMK04828-LMX2594 架構時脈子系統，可讓設計擴充至 16 通道或更多通道。各 AFE 通道包含 14 位元、9GSPS DAC 和 3GSPS ADC，ADC 同步化至低於 10ps 的偏斜，2.6GHz 下為 > 75dB 動態範圍。
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| SOIC (DW) | 16 | Ultra Librarian |
| TSSOP (PW) | 16 | 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。