資料介紹
This 16-bit I/O expander for the two-line bidirectional bus (I2C) is designed for 1.65-V to 5.5-V VCC operation. It provides general-purpose remote I/O expansion for most microcontroller families via the I2C interface [serial clock (SCL), serial data (SDA)].
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 master can enable the I/Os as either inputs or outputs by writing to the I/O configuration bits. The data for each input or output is kept in the corresponding Input or Output Port register. The polarity of the Input Port register can be inverted with the Polarity Inversion register. All registers can be read by the system master.
The system master can reset the TCA9535 in the event of a timeout or other improper operation by utilizing the power-on reset feature, which puts the registers in their default state and initializes the I2C/SMBus state machine.
The TCA9535 open-drain interrupt (INT) output is activated when any input state differs from its corresponding Input Port register state and is used to indicate to the system master that an input state has changed.
INT can be connected to the interrupt input of a microcontroller. By sending an interrupt signal on this line, the remote I/O can inform the microcontroller if there is incoming data on its ports without having to communicate via the I2C bus. Thus, the TCA9535 can remain a simple slave device.
The device outputs (latched) have high-current drive capability for directly driving LEDs. The device has low current consumption.
Although pin-to-pin and I2C address compatible with the PCF8575, software changes are required due to the enhancements.
The TCA9535 is identical to the PCA9555, except for the removal of the internal I/O pullup resistor, which greatly reduces power consumption when the I/Os are held low.
Three hardware pins (A0, A1, and A2) are used to program and vary the fixed I2C address and allow up to eight devices to share the same I2C bus or SMBus. The fixed I2C address of the TCA9535 is the same as the PCA9555, PCF8575, PCF8575C, and PCF8574, allowing up to eight of these devices in any combination to share the same I2C bus or SMBus.
- CY74FCT16952AT,PDF(16-Bit Regi
- CY74FCT162952AT,pdf(16-Bit Reg
- DAC7641,pdf(16-Bit, Voltage Ou
- DAC7741,pdf(16-Bit, Voltage Ou
- DAC7744,pdf(16-Bit, Quad Volta
- DAC8541,PDF(16-Bit, Single Cha
- DAC8550,pdf(16-Bit, Ultra-Low
- DAC8560,pdf(16-Bit, Ultra-Low
- DAC8574,pdf(Quad 16-Bit Low Po
- DAC8718,pdf(Octal, 16-bit, low
- DAC8728,pdf(Octal, 16-bit, Low
- DAC8832,pdf(16-Bit, Ultra-Low
- DAC8881,pdf(16-Bit, Single-Cha
- AD7694,pdf datasheet (16-Bit,
- AD7980 pdf datasheet (16-Bit,
- KUKA C 2機器人 InterBUS網絡設置 984次閱讀
- 核芯互聯8通道、16位雙極型輸入ADC CL1656助力電力設備和工業自動化 1397次閱讀
- 用Voltage-controlled Voltage Source仿真放大器 1011次閱讀
- 使用Voltage-controlled Voltage Source仿真放大器 1748次閱讀
- 接近開關TCA505構成的金屬探測電路 6043次閱讀
- dfrobotmicro:bit 電機驅動擴展板簡介 3383次閱讀
- 微雪電子Micro:bit舵機驅動板簡介 3110次閱讀
- 微雪電子|Micro:bit帶電池簡介 2110次閱讀
- 微雪電子BBC Micro:Bit學習板簡介 1854次閱讀
- 微雪電子Micro:bit傳感器介紹 4045次閱讀
- 微雪電子micro:bit接口擴展板簡介 2586次閱讀
- 微雪電子bit|micro:bit喇叭擴展板簡介 2137次閱讀
- 深度解析DCDC和LDO各自的原理和區別 5.1w次閱讀
- dsPIC33EP GS系列是Microchip新一代16-bit高性能MCU 1.4w次閱讀
- 基于16-bit MCU實現超低功耗運動檢測系統解決方案[圖] 1527次閱讀
下載排行
本周
- 1TC358743XBG評估板參考手冊
- 1.36 MB | 330次下載 | 免費
- 2開關電源基礎知識
- 5.73 MB | 11次下載 | 免費
- 3嵌入式linux-聊天程序設計
- 0.60 MB | 3次下載 | 免費
- 4DIY動手組裝LED電子顯示屏
- 0.98 MB | 3次下載 | 免費
- 5基于FPGA的C8051F單片機開發板設計
- 0.70 MB | 2次下載 | 免費
- 651單片機窗簾控制器仿真程序
- 1.93 MB | 2次下載 | 免費
- 751單片機PM2.5檢測系統程序
- 0.83 MB | 2次下載 | 免費
- 8基于51單片機的RGB調色燈程序仿真
- 0.86 MB | 2次下載 | 免費
本月
- 1OrCAD10.5下載OrCAD10.5中文版軟件
- 0.00 MB | 234315次下載 | 免費
- 2555集成電路應用800例(新編版)
- 0.00 MB | 33566次下載 | 免費
- 3接口電路圖大全
- 未知 | 30323次下載 | 免費
- 4開關電源設計實例指南
- 未知 | 21549次下載 | 免費
- 5電氣工程師手冊免費下載(新編第二版pdf電子書)
- 0.00 MB | 15349次下載 | 免費
- 6數字電路基礎pdf(下載)
- 未知 | 13750次下載 | 免費
- 7電子制作實例集錦 下載
- 未知 | 8113次下載 | 免費
- 8《LED驅動電路設計》 溫德爾著
- 0.00 MB | 6656次下載 | 免費
總榜
- 1matlab軟件下載入口
- 未知 | 935054次下載 | 免費
- 2protel99se軟件下載(可英文版轉中文版)
- 78.1 MB | 537798次下載 | 免費
- 3MATLAB 7.1 下載 (含軟件介紹)
- 未知 | 420027次下載 | 免費
- 4OrCAD10.5下載OrCAD10.5中文版軟件
- 0.00 MB | 234315次下載 | 免費
- 5Altium DXP2002下載入口
- 未知 | 233046次下載 | 免費
- 6電路仿真軟件multisim 10.0免費下載
- 340992 | 191186次下載 | 免費
- 7十天學會AVR單片機與C語言視頻教程 下載
- 158M | 183279次下載 | 免費
- 8proe5.0野火版下載(中文版免費下載)
- 未知 | 138040次下載 | 免費
評論
查看更多