PCA9672BS: 带有中断和复位的Fm I²C总线远程8位I/O扩展器
PCA9672通过两路双向总线（I²C总线）为大多数微控制器系列提供通用远程I/O扩展且是快速模式Plus系列的一部分。
PCA9672是PCF8574的即用升级产品，提供更高的快速模式Plus (Fm+)I²C总线速度（1 MHz相对400 kHz）以使输出能够支持LED的PWM调光；提供更高的I²C总线驱动（30 mA相对3 mA）以使总线上可存在更多的器件而无需进行总线缓冲；提供更高的总封装灌电流能力（200 mA相对100 mA）以支持同时打开所有的LED以及提供更多可用的器件地址（16相对8）以允许总线上存在更多器件而不会发生地址冲突。
PCA9672和PCF8574之间的区别是A2地址引脚由PCA9672上的1输入取代。
器件由8位准双向端口和I²C总线接口组成。PCA9672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。
PCA9672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)、硬件复位引脚(1)或软件复位序列引脚会将I/O初始化为输入。
PCA9672BS: 产品结构框图
sot758-1_3d
数据手册 (1)
| 名称/描述 | Modified Date |
|---|---|
| Remote 8-bit I/O expander for Fm+ I2C-bus with interrupt and reset (REV 3.0) PDF (781.0 kB) PCA9672 [English] | 27 May 2013 |
应用说明 (3)
| 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 |
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 thermal enhanced very thin quad flat package; no leads; 16 terminals; body 3 x 3 x 0.85 mm (REV 1.0) PDF (201.0 kB) SOT758-1 [English] | 08 Feb 2016 |
包装 (1)
| 名称/描述 | Modified Date |
|---|---|
| HVQFN16; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or... (REV 2.0) PDF (262.0 kB) SOT758-1_118 [English] | 18 Apr 2013 |
订购信息
| 型号 | 状态 | No of bits | VDD [min] (V) | VDD [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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PCA9672BS | Active | 8 | 2.3 | 5.5 | Y | 1 | 2.5 | 25 | 200 | 0.1 | Y | Y | Quasi | Int I source | 1000 | 9.61 | HVQFN16 | SOT758-1 | -40~85 | 16 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PCA9672BS | | SOT758-1 | Reel 13" Q1/T1 | Active | PCA9672BS,118 (9352 827 45118) | 672 | PCA9672BS |    | Always Pb-free | 0.0 | 2.0 | 5E8 | 1 | 1 |
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