Datasheet > 微控制器和处理器 > 并行 IO 端口> PCA9539APW

PCA9539APW

更新时间： 2024-02-04 13:22:31

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
39页	2401K
描述
Low-voltage 16-bit I2C-bus I/O port with interrupt and reset

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PCA9539APW 技术参数

是否无铅：	不含铅	是否Rohs认证：	符合
生命周期：	Obsolete	包装说明：	TSSOP, TSSOP24,.25
Reach Compliance Code：	unknown	风险等级：	5.3
JESD-30 代码：	R-PDSO-G24	JESD-609代码：	e3
长度：	7.8 mm	湿度敏感等级：	1
位数：	16	I/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：	TSSOP
封装等效代码：	TSSOP24,.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）：	225
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：	MATTE TIN	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：	NOT SPECIFIED	宽度：	4.4 mm
Base Number Matches：	1

PCA9539APW 数据手册

PCA9539A

Low-voltage 16-bit I²C-bus I/O port with interrupt and reset

Rev. 1 — 26 September 2012

Product data sheet

1. General description

The PCA9539A is a low-voltage 16-bit General Purpose Input/Output (GPIO) expander

with interrupt and reset for I²C-bus/SMBus applications. NXP I/O expanders provide a

simple solution when additional I/Os are needed while keeping interconnections to a

minimum, for example, in ACPI power switches, sensors, push buttons, LEDs, fan control,

etc.

In addition to providing a flexible set of GPIOs, the wide V_DDrange of 1.65 V to 5.5 V

allows the PCA9539A to interface with next-generation microprocessors and

microcontrollers where supply levels are dropping down to conserve power.

The PCA9539A contains the PCA9539 register set of four pairs of 8-bit Configuration,

Input, Output, and Polarity Inversion registers.

The PCA9539A is a pin-to-pin replacement to the PCA9539, and other industry-standard

part numbers. A more fully featured part, PCAL9539A is also available with Agile I/O

features. See the respective data sheet for more details.

The PCA9539A 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 PCA9539A can

remain a simple slave device.

The device outputs have 25 mA sink capabilities for directly driving LEDs while consuming

low device current.

The power-on reset sets the registers to their default values and initializes the device state

machine. In the PCA9539A, the RESET pin causes the same reset/default I/O input

configuration to occur without de-powering the device, holding the registers and I²C-bus

state machine in their default state until the RESET input is once again HIGH. This input

requires a pull-up to V_DD

Two hardware pins (A0, A1) select the fixed I²C-bus address and allow up to four devices

to share the same I²C-bus/SMBus.

12 3 4 5 6 7...39

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与PCA9539APW相关器件

型号	品牌	描述	获取价格	数据表
PCA9539APW,118	NXP	PCA9539A - Low voltage 16-bit I²C-bus I/O por	获取价格
PCA9539BS	NXP	16-bit I2C and SMBus, low power I/O port with interrupt and reset	获取价格
PCA9539BS,118	NXP	PCA9539; PCA9539R - 16-bit I²C-bus and SMBus	获取价格
PCA9539BS-T	NXP	IC IC,I/O PORT,16-BIT,CMOS,LLCC,24PIN,PLASTIC, Parallel IO Port	获取价格
PCA9539D	NXP	16-bit I2C and SMBus, low power I/O port with interrupt and reset	获取价格
PCA9539D,112	NXP	PCA9539; PCA9539R - 16-bit I²C-bus and SMBus	获取价格

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