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Datasheet > PCA9538PW,112
PCA9538PW,112 PDF预览

PCA9538PW,112

更新时间： 2024-12-01 21:20:35
品牌 Logo 应用领域
恩智浦 - NXP PC光电二极管外围集成电路
页数 文件大小 规格书
34页 446K
描述
PCA9538 - 8-bit I²C-bus and SMBus low power I/O port with interrupt and reset TSSOP 16-Pin

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PCA9538PW,112 技术参数

是否Rohs认证： 符合生命周期：Obsolete
零件包装代码：TSSOP包装说明：TSSOP, TSSOP16,.25
针数：16Reach Compliance Code：compliant
HTS代码：8542.39.00.01风险等级：5.24
JESD-30 代码：R-PDSO-G16JESD-609代码：e4
长度：5 mm湿度敏感等级：1
位数：8I/O 线路数量：8
端口数量：1端子数量：16
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：TSSOP
封装等效代码：TSSOP16,.25封装形状：RECTANGULAR
封装形式：SMALL OUTLINE, THIN PROFILE, SHRINK PITCH峰值回流温度（摄氏度）：260
电源：2.5/5 V认证状态：Not Qualified
座面最大高度：1.1 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
端子面层：Nickel/Palladium/Gold (Ni/Pd/Au)端子形式：GULL WING
端子节距：0.65 mm端子位置：DUAL
处于峰值回流温度下的最长时间：30宽度：4.4 mm
uPs/uCs/外围集成电路类型：PARALLEL IO PORT, GENERAL PURPOSEBase Number Matches：1

PCA9538PW,112 数据手册

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PCA9538  
8-bit I2C-bus and SMBus low power I/O port with interrupt and  
reset  
Rev. 6 — 6 February 2013  
Product data sheet  
1. General description  
The PCA9538 is a 16-pin CMOS device that provides 8 bits of General Purpose parallel  
Input/Output (GPIO) expansion with interrupt and reset for I2C-bus/SMBus applications  
and was developed to enhance the NXP Semiconductors family of I2C-bus I/O expanders.  
I/O expanders provide a simple solution when additional I/O is needed for ACPI power  
switches, sensors, push-buttons, LEDs, fans, etc.  
The PCA9538 consists of an 8-bit Configuration register (input or output selection),  
8-bit Input Port register, 8-bit Output Port register and an 8-bit Polarity Inversion register  
(active HIGH or active LOW operation). 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 Port 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 PCA9538 is identical to the PCA9554 except for the removal of the internal I/O  
pull-up resistor which greatly reduces power consumption when the I/Os are held LOW,  
replacement of A2 with RESET and different address range.  
The PCA9538 open-drain interrupt output (INT) 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. The RESET pin causes the same  
reset/initialization to occur without de-powering the device.  
Two hardware pins (A0 and A1) vary the fixed I2C-bus address and allow up to four  
devices to share the same I2C-bus/SMBus.  
2. Features and benefits  
8-bit I2C-bus GPIO with interrupt and reset  
Operating power supply voltage range of 2.3 V to 5.5 V  
(5.0 V 10 % for PCA9538PW/Q900 AEC-Q100 compliant devices)  
5 V tolerant I/Os  
Polarity Inversion register  
Active LOW interrupt output  
Active LOW reset input  
Low standby current  
Noise filter on SCL/SDA inputs  
No glitch on power-up  
 
 
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PCA9538PW,112 替代型号

型号 品牌 替代类型 描述 数据表
PCA9557PW,118 NXP

完全替代

 PCA9557 - 8-bit I2C-bus and SMBus I/O port with reset TSSOP 16-Pin
PCA9554PW,118 NXP

完全替代

 8-bit I2C-bus and SMBus I/O port with interrupt

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