资料介绍
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.
- DAC7641,pdf(16-Bit, Voltage Ou 22次下载
- DAC8541,PDF(16-Bit, Single Cha 61次下载
- DAC8550,pdf(16-Bit, Ultra-Low 29次下载
- DAC8551,pdf(16-Bit Ultra-Low G 50次下载
- DAC8560,pdf(16-Bit, Ultra-Low 43次下载
- DAC8571,pdf(16-Bit Low Power V 64次下载
- DAC8718,pdf(Octal, 16-bit, low 14次下载
- DAC8728,pdf(Octal, 16-bit, Low 19次下载
- DAC8832,pdf(16-Bit, Ultra-Low 28次下载
- DAC8881,pdf(16-Bit, Single-Cha 24次下载
- AD7171,pdf datasheet (16-Bit L 32次下载
- AD5662,pdf datasheet (16-Bit n 2次下载
- AD7694,pdf datasheet (16-Bit, 28次下载
- AD7722,pdf datasheet (16-Bit 1 17次下载
- AD7980 pdf datasheet (16-Bit, 28次下载
- 为什么格雷码可以辅助解决多bit跨时钟域的问题?求解 475次阅读
- 核芯互联8通道、16位双极型输入ADC CL1656助力电力设备和工业自动化 876次阅读
- 用Voltage-controlled Voltage Source仿真放大器 522次阅读
- 使用Voltage-controlled Voltage Source仿真放大器 1112次阅读
- LVDS低电压差分信号的优点及布板注意事项 2544次阅读
- 接近开关TCA505构成的金属探测电路 5328次阅读
- 由TCA785可控硅移相触发器实现的三相全控桥触发电路 1.2w次阅读
- dfrobot小创客轻松玩转micro:bit介绍 1480次阅读
- 微雪电子Micro:bit舵机驱动板简介 2720次阅读
- 微雪电子|Micro:bit带电池简介 1791次阅读
- 微雪电子BBC Micro:Bit学习板简介 1518次阅读
- 微雪电子Micro:bit传感器介绍 3670次阅读
- 微雪电子micro:bit接口扩展板简介 2271次阅读
- 微雪电子bit|micro:bit喇叭扩展板简介 1872次阅读
- 基于16-bit MCU实现超低功耗运动检测系统解决方案[图] 1404次阅读
下载排行
本周
- 1ATmega8芯片中文手册
- 2.45 MB | 3次下载 | 1 积分
- 2带有集成场效应晶体管(FET) 的3.1V至5.5V输入,3A输出同步降压稳压器TPS51312数据表
- 1.28MB | 3次下载 | 免费
- 3VGA 转 HDMI 输出的音视频采集卡LCC385数据手册
- 0.34 MB | 2次下载 | 免费
- 4全志A527系列规格书YNH-830-V1
- 2.39 MB | 2次下载 | 免费
- 5光伏太阳能电池板可编程最大功率点跟踪控制器SM72442数据表
- 373.53KB | 2次下载 | 免费
- 6传感芯片选型指南
- 3.60 MB | 2次下载 | 免费
- 7SZFC 8 位单片机FC2722用户参考手册
- 3.35 MB | 1次下载 | 免费
- 850-A,4.5-V至14-V输入,非隔离,宽输出调节,采用TurboTrans™技术的电源模块PTH08T250W数据表
- 2.42MB | 1次下载 | 免费
本月
- 1ES9038PRO解码芯片的电路原理图介绍
- 0.25 MB | 33次下载 | 5 积分
- 2DC-DC电路(Buck)的设计与仿真
- 0.60 MB | 24次下载 | 2 积分
- 3UHD智能显示SoC VS680产品简介
- 0.46 MB | 11次下载 | 免费
- 4STM32国内外发展现状
- 1.15 MB | 8次下载 | 免费
- 5采用 Impedance Track™ 技术的宽量程电量监测计BQ34Z100-G1数据表
- 2.7MB | 7次下载 | 免费
- 6TDK电容器产品指南
- 11.88 MB | 7次下载 | 1 积分
- 7CR6842 12V/5A 反激式开关电源方案介绍
- 0.10 MB | 6次下载 | 免费
- 816A 输出电流,高可靠、高效率 同步降压转换器PCD3201产品手册
- 0.47 MB | 6次下载 | 免费
总榜
- 1matlab软件下载入口
- 未知 | 935085次下载 | 免费
- 2开源硬件-PMP21529.1-4 开关降压/升压双向直流/直流转换器 PCB layout 设计
- 1.48MB | 420049次下载 | 免费
- 3Altium DXP2002下载入口
- 未知 | 233067次下载 | 免费
- 4电路仿真软件multisim 10.0免费下载
- 340992 | 191315次下载 | 免费
- 5十天学会AVR单片机与C语言视频教程 下载
- 158M | 183316次下载 | 免费
- 6labview8.5下载
- 未知 | 81567次下载 | 免费
- 7Keil工具MDK-Arm免费下载
- 0.02 MB | 73786次下载 | 免费
- 8NI LabVIEW中实现3D视觉的工具和技术
- 未知 | 70088次下载 | 免费
评论
查看更多