韌體
產品規格表
TCA9535
- I2C to Parallel port expander
- Wide power supply voltage range of 1.65 V to 5 V
- Low standby-current consumption
- Open-drain active-low interrupt output
- 5-V tolerant I/O ports
- 400-kHz Fast I2C bus
- Polarity inversion register
- Address by three hardware address pins for use of up to eight devices
- Latched outputs with high-current drive 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 TCA9535 is a 24-pin device that provides 16 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.
The TCA9535 consists of two 8-bit Configuration (input or output selection), Input Port, Output Port, and Polarity Inversion (active-high or active-low operation) registers. At power on, the I/Os are configured as inputs. The system controller can enable the I/Os as either inputs or outputs by writing to the I/O configuration bits.
The TCA9535 is identical to the TCA9555, except that the TCA9535 does not include the internal I/O pull-up resistor, which requires pull-ups and pull-downs on unused I/O pins when configured as an input and undriven.
技術文件
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檢視所有 8 | 類型 | 標題 | 日期 | ||
|---|---|---|---|---|
| * | Data sheet | TCA9535 Low-Voltage 16-Bit I2C and SMBus Low-Power I/O Expander with Interrupt Output and Configuration Registers datasheet (Rev. E) | PDF | HTML | 2022年 5月 6日 |
| Application note | Understanding Transient Drive Strength vs. DC Drive Strength in CMOS Output Buffers | PDF | HTML | 2024年 5月 14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-00420 — ADC 架構、數位隔離、廣泛輸入、16 通道、AC/DC 二進位輸入參考設計
This reference design showcases a cost-optimized and scalable ADC-based AC/DC binary input module (BIM) architecture with reinforced isolation. The 16 channels of a 10- or 12-bit SAR ADC are used for sensing multiple binary inputs. The op amps, in addition to keeping the cost per-channel low, (...)
參考設計
TIDM-CAPTOUCHEMCREF — 雜訊抗擾電容式觸控 HMI 參考設計
The Noise Tolerant Capacitive Touch HMI design (TIDM-CAPTOUCHEMCREF) is a reference design for implementing noise tolerant capacitive touch human-machine interfaces (HMIs). It integrates TI's MSP430FR2633 microcontroller (MCU) featuring high performance CapTIvate™ touch technology with (...)
參考設計
TIDA-01579 — 適合成像應用的高效率、低輸出漣波電源供應參考設計
The point-of-load power-tree on video surveillance systems is optimized with this reference design. This reference design has a high performance on key parameters such as output voltage accuracy, voltage ripple, and thermal dissipation. This high performance is possible with a small board area and (...)
參考設計
TIDA-00246 — 適用熱電發電機 (TEG) 的通用能源採集轉接器模組參考設計
This reference design aims at providing a generic solution for energy harvesting while giving a practical application application for thermoelectric generators (TEG). It is a fully programmable state-machine which runs at 60nA and can enable and disable key functions as they are needed by the (...)
參考設計
TIDA-00468 — 延遲、功率與記憶體大小最佳化的熱電偶感測前端參考設計
The TIDA-00468 Reference design shows how to build an isolated thermocouple sensing front-end with optimized power-consumption for loop powered application while:
• reducing footprint from classical look-up table approach and
• keeping the fast response time of linear piece wise interpolation
• reducing footprint from classical look-up table approach and
• keeping the fast response time of linear piece wise interpolation
參考設計
TIDA-00168 — 使用 RTD 或整合式溫度感測器進行冷接點補償 (CJC) 的熱電偶 AFE
The sole objective of this reference design is to provide comprehensive details on how to design a simple, robust, and accurate analog front end (AFE) circuit for making precision temperature measurements with thermocouple sensors. TIDA-00168 explains the theory, operation, and complications (...)
| 封裝 | 針腳 | CAD 符號、佔位空間與 3D 模型 |
|---|---|---|
| SSOP (DB) | 24 | Ultra Librarian |
| TSSOP (PW) | 24 | Ultra Librarian |
| VQFN (RGE) | 24 | Ultra Librarian |
| WQFN (RTW) | 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。