PCA9557PW: 带有复位的8位I2C总线和SMBus I/O端口

PCA9557是一款硅CMOS电路,为SMBus和I²C总线应用提供并行输入/输出扩展。PCA9557由8位输入端口寄存器、8位输出端口寄存器和I²C总线/SMBus接口组成。具有低电流消耗和高阻抗开漏输出引脚IO0。

通过写入I/O配置寄存器,系统主器件可将PCA9557的I/O用作输入或输出。通过写入高电平有效的极性反转寄存器,系统主器件还可反转PCA9557输入。最后,通过在复位输入中加入低电平,系统主器件可在超时时使PCA9557复位。

上电复位会将寄存器设为其默认状态并初始化I²C总线/SMBus状态机。1引脚可引发相同的复位/初始化而无需使部件断电。

PCA9557PW: 产品结构框图
PCA9557PW: 应用结构框图
Outline 3d SOT403-1
数据手册 (1)
名称/描述Modified Date
8-bit I2C-bus and SMBus I/O port with reset (REV 7.0) PDF (282.0 kB) PCA9557 [English]10 Dec 2013
应用说明 (6)
名称/描述Modified Date
Driving stepper motors using NXP® I2C-bus GPIO expanders (REV 2.0) PDF (275.0 kB) AN10814 [English]24 Oct 2011
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
I2C/SMBus general purpose I/O expanders (REV 2.0) PDF (294.0 kB) AN469 [English]20 Jan 2005
PCA954X FAMILY OF I²C / SMBus MULTIPLEXERS and SWITCHES (REV 2.0) PDF (807.0 kB) AN262 [English]01 Oct 2004
I2C manual (REV 1.0) PDF (4.2 MB) AN10216 [English]27 Mar 2003
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
Convenient parallel I/O expansion or collection via the I2C/SMBus; NXP® Octal SMBus registered interface... (REV 1.2) PDF (377.0 kB) 750_16534 [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
报告或演示文稿 (1)
名称/描述Modified Date
design_con_2003_tecforum_i2c_b_1 (REV 0.1) PDF (4.2 MB) DESIGN_CON_2003_TECFORUM_I2C_B_1 [English]27 Jan 2003
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
Design Support
IBIS
订购信息
型号状态No of bitsVDD [min] (V)VDD [max] (V)Over volt tolerantNo of suppliesStandby current [typ] (µA)Max Sink Current per bit (mA)Max Sink Current, per package (mA)Source Current per bit (mA)Interrupt output pinReset input pinOutput modeInput mode: invert optionInternal pull-up resistor per bit (kOhm)I2C-bus (kHz)Footprint body and leads (mm2)Package namePackage versionOperating Temperature (Cel)No of AddressesRemark
PCA9557PWActive82.35.5Y10.252510020YTotem Pole/Open DrainY40033.66TSSOP16SOT403-1-40~858Only bit 0 is open drain
PCA9557PW/GNo Longer Manufactured82.35.5Y10.252510020YTotem Pole/Open DrainY40033.66TSSOP16SOT403-1-40~858Only bit 0 is open drain
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EFRIFR(FIT)MTBF(小时)MSLMSL LF
PCA9557PWSOT403-1SSOP-TSSOP-VSO-WAVEReel 13" Q1/T1ActivePCA9557PW,118 (9352 706 69118)PCA9557PCA9557PWweek 48, 20040.02.05E811
Bulk PackActivePCA9557PW,112 (9352 706 69112)PCA9557PCA9557PWweek 48, 20040.02.05E811
PCA9557PW/GSOT403-1SSOP-TSSOP-VSO-WAVEReel 13" Q1/T1WithdrawnPCA9557PW/G,118 (9352 764 27118)PCA9557week 13, 20050.02.05E811
8-bit I2C-bus and SMBus I/O port with reset pca9557
Driving stepper motors using NXP® I2C-bus GPIO expanders pca9698
PCA9500/PCA9501 provides simple card maintenance and control using I²C-bus PCA9553
Level shifting techniques in I2C-bus design pca9685pw
I2C/SMBus general purpose I/O expanders pcf8575ts
PCA954X FAMILY OF I²C / SMBus MULTIPLEXERS and SWITCHES pca9516apw
I2C manual se98apw
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
Convenient parallel I/O expansion or collection via the I2C/SMBus; NXP® Octal SMBus registered interface... pca9557
Create smarter, more efficient white goods; An industry-leading portfolio of cost-effective, power-saving solutions for... PMEG6010CE_AUTOMOTIVE
design_con_2003_tecforum_i2c_b_1 lm75a
Expert mode sample code for PCA9557 PCA9557PW
PCA9557 IBIS model PCA9557PW
SOT403-1 LPC812M101JDH16
SSOP-TSSOP-VSO-WAVE LPC1114FDH28
Reel 13" Q1/T1 LPC812M101JDH16
PCA9557
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