PCA8574PW: 带有中断的I2C总线远程8位I/O扩展器 _ BDTIC 中国领先电子元器件代理商

PCA8574PW: 带有中断的I2C总线远程8位I/O扩展器

PCA8574/74A通过两路双向I²C总线（串行时钟(SCL)、串行数据(SDA)）为大多数微控制器系列提供通用远程I/O扩展。

器件由8位准双向端口和I²C总线接口组成。PCA8574/74A具有低电流消耗且包含具备25 mA高电流驱动能力的锁存输出，用于直接驱动LED。

PCA8574/74A还具有中断线路(1)，可连接至微控制器的中断逻辑。通过在此线路发送中断信号，远程I/O可通知微控制器其端口上是否存在输入数据而无需通过I²C总线通信。

内部上电复位(POR)会将I/O初始化为输入。

PCA8574PW: 产品结构框图

PCA8574PW: 应用结构框图

Outline 3d SOT403-1

数据手册 (1)

名称/描述	Modified Date
Remote 8-bit I/O expander for I2C-bus with interrupt (REV 3.0) PDF (1.0 MB) PCA8574_PCA8574A [English]	03 Jun 2013

应用说明 (2)

名称/描述	Modified Date
PCA9500/PCA9501 provides simple card maintenance and control using I²C-bus (REV 1.0) PDF (90.0 kB) AN256 [English]	23 Mar 2009
Level shifting techniques in I2C-bus design (REV 1.0) PDF (52.0 kB) AN10441 [English]	20 Jun 2007

用户指南 (4)

名称/描述	Modified Date
I2C-bus specification and user manual (REV 6.0) PDF (1.4 MB) UM10204 [English]	28 Apr 2014
I2C-bus specification and user manual (REV 5.0) PDF (1.6 MB) UM10204_JA [English]	03 Apr 2013
PCA9698 demonstration board OM6281 (REV 1.0) PDF (558.0 kB) UM10267 [English]	26 Sep 2008
I2C Demonstration Board 2005-1 Quick Start Guide (REV 1.0) PDF (261.0 kB) UM10206 [English]	13 Jun 2006

手册 (3)

名称/描述	Modified Date
NXP® I2C-bus solutions 2014: Smart, simple solutions for the 12 most common design concerns (REV 1.0) PDF (3.5 MB) 75017540 [English]	01 Aug 2014
Versatile, easy-to-use GPIO expanders; NXP® 4/8/16-bit I2C/SMBus GPIO expanders PCA9536/54/54A/55 (REV 1.0) PDF (319.0 kB) 75016535 [English]	01 Aug 2008
Create smarter, more efficient white goods; An industry-leading portfolio of cost-effective, power-saving solutions for... (REV 1.0) PDF (1.1 MB) 75016543 [English]	01 Jun 2008

封装信息 (1)

名称/描述	Modified Date
plastic thin shrink small outline package; 16 leads; body width 4.4 mm (REV 1.0) PDF (300.0 kB) SOT403-1 [English]	08 Feb 2016

包装 (1)

名称/描述	Modified Date
TSSOP16; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or... (REV 1.0) PDF (218.0 kB) SOT403-1_118 [English]	08 Apr 2013

支持信息 (1)

名称/描述	Modified Date
Footprint for wave soldering (REV 1.0) PDF (16.0 kB) SSOP-TSSOP-VSO-WAVE [English]	08 Oct 2009

订购信息

型号	状态	No of bits	V_DD [min] (V)	V_DD [max] (V)	Over volt tolerant	No of supplies	Standby current [typ] (µA)	Max Sink Current per bit (mA)	Max Sink Current, per package (mA)	Source Current per bit (mA)	Interrupt output pin	Reset input pin	Output mode	Input mode: invert option	Internal pull-up resistor per bit (kOhm)	I2C-bus (kHz)	Footprint body and leads (mm2)	Package name	Package version	Operating Temperature (Cel)	No of Addresses	Remark
PCA8574PW	Active	8	2.3	5.5	Y	1	4.5	25	200	0.1	Y		Quasi		Int I source	400	33.66	TSSOP16	SOT403-1	-40~85	8

封装环保信息

产品编号	封装说明	Outline Version	回流/波峰焊接	包装	产品状态	部件编号订购码 (12NC)	Marking	化学成分	RoHS / 无铅 / RHF	无铅转换日期	EFR	IFR(FIT)	MTBF（小时）	MSL	MSL LF
PCA8574PW		SOT403-1	SSOP-TSSOP-VSO-WAVE	Reel 13" Q1/T1	Active	PCA8574PW,118 (9352 837 61118)	PCA8574	PCA8574PW		Always Pb-free	0.0	2.0	5E8	1	1
PCA8574PW		SOT403-1	SSOP-TSSOP-VSO-WAVE	Bulk Pack	Active	PCA8574PW,112 (9352 837 61112)	PCA8574	PCA8574PW		Always Pb-free	0.0	2.0	5E8	1	1

Remote 8-bit I/O expander for I2C-bus with interrupt pca8574_74a

PCA9500/PCA9501 provides simple card maintenance and control using I²C-bus PCA9553

Level shifting techniques in I2C-bus design pca9685pw

I2C-bus specification and user manual pca9685pw

I2C-bus specification and user manual pca9685pw

PCA9698 demonstration board OM6281 PCA9553

I2C Demonstration Board 2005-1 Quick Start Guide pca9685pw

NXP® I2C-bus solutions 2014: Smart, simple solutions for the 12 most common design concerns pca9685pw

Versatile, easy-to-use GPIO expanders; NXP® 4/8/16-bit I2C/SMBus GPIO expanders PCA9536/54/54A/55 pcf8570p

Create smarter, more efficient white goods; An industry-leading portfolio of cost-effective, power-saving solutions for... PMEG6010CE_AUTOMOTIVE

SOT403-1 LPC812M101JDH16

SSOP-TSSOP-VSO-WAVE LPC1114FDH28

Reel 13" Q1/T1 LPC812M101JDH16

PCA8574_74A

PCA9633

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