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PCA9535CD PDF预览

PCA9535CD

更新时间: 2024-02-15 18:35:52
品牌 Logo 应用领域
恩智浦 - NXP 并行IO端口微控制器和处理器外围集成电路光电二极管
页数 文件大小 规格书
32页 191K
描述
16-bit I2C-bus and SMBus, low power I/O port with interrupt

PCA9535CD 技术参数

生命周期:Obsolete零件包装代码:QFN
包装说明:HVQCCN, LCC24/28,.14X.2,20针数:24
Reach Compliance Code:unknownECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.68
JESD-30 代码:R-PQCC-N24长度:5.5 mm
位数:16I/O 线路数量:16
端口数量:2端子数量:24
最高工作温度:85 °C最低工作温度:-40 °C
封装主体材料:PLASTIC/EPOXY封装代码:HVQCCN
封装等效代码:LCC24/28,.14X.2,20封装形状:RECTANGULAR
封装形式:CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE电源:2.5/5 V
认证状态:Not Qualified座面最大高度:1 mm
子类别:Parallel IO Port最大供电电压:5.5 V
最小供电电压:2.3 V标称供电电压:3 V
表面贴装:YES技术:CMOS
温度等级:INDUSTRIAL端子形式:NO LEAD
端子节距:0.5 mm端子位置:QUAD
宽度:3.5 mmuPs/uCs/外围集成电路类型:PARALLEL IO PORT, GENERAL PURPOSE
Base Number Matches:1

PCA9535CD 数据手册

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PCA9535; PCA9535C  
16-bit I2C-bus and SMBus, low power I/O port with interrupt  
Rev. 03 — 4 October 2007  
Product data sheet  
1. General description  
The PCA9535 and PCA9535C are 24-pin CMOS devices that provide 16 bits of General  
Purpose parallel Input/Output (GPIO) expansion for I2C-bus/SMBus applications and was  
developed to enhance the NXP Semiconductors family of I2C-bus I/O expanders. The  
improvements include higher drive capability, 5 V I/O tolerance, lower supply current,  
individual I/O configuration, and smaller packaging. I/O expanders provide a simple  
solution when additional I/O is needed for ACPI power switches, sensors, push buttons,  
LEDs, fans, etc.  
The PCA9535 and PCA9535C consist of two 8-bit Configuration (Input or Output  
selection), Input, Output and Polarity Inversion (active HIGH or active LOW operation)  
registers. 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 register. The polarity of the read register can be inverted with the Polarity  
Inversion register. All registers can be read by the system master. Although pin-to-pin and  
I2C-bus address compatible with the PCF8575, software changes are required due to the  
enhancements and are discussed in Application Note AN469.  
The PCA9535 is identical to the PCA9555 except for the removal of the internal I/O pull-up  
resistor which greatly reduces power consumption when the I/Os are held LOW.  
The PCA9535C is identical to the PCA9535 except that all the I/O pins are  
high-impedance open-drain outputs.  
The PCA9535 and PCA9535C open-drain interrupt 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. The power-on reset sets the registers to  
their default values and initializes the device state machine.  
Three hardware pins (A0, A1, A2) vary the fixed I2C-bus address and allow up to eight  
devices to share the same I2C-bus/SMBus. The fixed I2C-bus address of the PCA9535  
and PCA9535C are the same as the PCA9555 allowing up to eight of these devices in any  
combination to share the same I2C-bus/SMBus.  
2. Features  
I Operating power supply voltage range of 2.3 V to 5.5 V  
I 5 V tolerant I/Os  
I Polarity Inversion register  
I Active LOW interrupt output  
I Low standby current  
I Noise filter on SCL/SDA inputs  

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