PCA9539RBS: 带有中断和复位的16位I2C总线和SMBus低功率I/O端口
PCA9539、PCA9539R是24引脚CMOS器件，为I²C总线/SMBus应用提供带中断和复位的16位通用并行输入/输出(GPIO)扩展，是为增强NXP Semiconductors的I²C总线I/O扩展器系列而开发的。ACPI电源开关、传感器、按钮、LED、风扇等需要额外的I/O时，I/O扩展器提供简易的解决方案。
PCA9539、PCA9539R由两个8位配置（输入或输出选择）、输入、输出和极性反转（高电平有效或低电平有效操作）寄存器组成。系统主器件可通过写入I/O配置位将I/O用作输入或输出。每个输入或输出的数据保留在对应的输入或输出寄存器中。通过极性反转寄存器可反转读取寄存器的极性。系统主器件可读取所有寄存器。
除取消I/O保持低电平时极大降低功耗的内部I/O上拉电阻、用1替换A2以及地址范围不同外，PCA9539、PCA9539R与PCA9555完全相同。
当任何输入状态与其对应的输入端口寄存器状态不同时，会激活PCA9539、PCA9539R开漏中断输出并用于通知系统主器件输入状态已改变。
上电复位会将寄存器设为其默认值并初始化器件状态机。在PCA9539中，1引脚会引发相同的复位/默认I/O输入配置而无需使器件断电，保持寄存器和I²C总线状态机为其默认状态直至1输入再次变为高电平。此输入需要上拉至VDD。但是，在PCA9539R中，1引脚只能初始化器件状态机而内部通用寄存器保持不变。使用PCA9539R 1引脚只会在I²C总线接口卡在低电平时对其进行复位以重新访问I²C总线。这允许I/O引脚保留其最后配置的状态，使其能在I²C总线恢复时将任意线路保持在其先前定义状态中且不会引起系统错误。
两个硬件引脚(A0、A1)会改变固定II²C总线地址，因而允许最多四个器件共享相同的I²C总线/SMBus。
PCA9539RBS: 产品结构框图
Outline 3d SOT616-1
数据手册 (1)
| 名称/描述 | Modified Date |
|---|---|
| 16-bit I2C-bus and SMBus low power I/O port with interrupt and reset (REV 8.0) PDF (491.0 kB) PCA9539_PCA9539R [English] | 26 Nov 2014 |
应用说明 (4)
| 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 |
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; 24 terminals; body 4 x 4 x 0.85 mm (REV 1.0) PDF (202.0 kB) SOT616-1 [English] | 08 Feb 2016 |
包装 (2)
| 名称/描述 | Modified Date |
|---|---|
| HVQFN24; reel pack; standard product orientation; 12NC ending 118 (REV 1.0) PDF (196.0 kB) SOT616-1_118 [English] | 16 Jan 2014 |
| HVQFN24; Reel pack; SMD, 7" Q1/T1 Standard product orientation Orderable part number ending ,115 or... (REV 1.0) PDF (203.0 kB) SOT616-1_115 [English] | 23 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PCA9539RBS | Active | 16 | 2.3 | 5.5 | Y | 1 | 0.25 | 25 | 200 | 10 | Y | Y | Totem pole | Y | 400 | 16.81 | HVQFN24 | SOT616-1 | -40~85 | 4 | Only I2C state machine is reset with hardware pin |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PCA9539RBS | | SOT616-1 | Reel 13" Q1/T1 | Active | PCA9539RBS,118 (9352 866 04118) | 539R | PCA9539RBS |    | Always Pb-free | 0.0 | 2.0 | 5E8 | 1 | 1 |
- 16-bit I2C-bus and SMBus low power I/O port with interrupt and reset pca9539_pca9539r
- 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
- 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
- HVQFN24; Reel pack; SMD, 7" Q1/T1 Standard product orientation Orderable part number ending ,115 or... TFF1007HN
- plastic thermal enhanced very thin quad flat package; no leads; 24 terminals; body 4 x 4 x 0.85 mm TFF1007HN
- HVQFN24; reel pack; standard product orientation; 12NC ending 118 TFF1007HN
- PCA9539_PCA9539R
- TFF11152HN
