PCA9535和PCA9535C是24引脚CMOS器件,为I²C总线/SMBus应用提供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。改进内容包括更高的驱动能力、5 V I/O容限、更低的供电电流、独立的I/O配置和更小的封装。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。
PCA9535和PCA9535C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。虽然引脚对引脚和I²C总线地址都兼容PCF8575,但是因增强功能而需要软件更改,这在应用注意事项AN469中讨论。
除取消I/O保持低电平时极大降低功耗的内部I/O上拉电阻外,PCA9535与PCA9555完全相同。
除所有I/O引脚均为高阻抗开漏输出外,PCA9535C与PCA9535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PCA9535和PCA9535C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。
三个硬件引脚(A0、A1、A2)会改变固定I²C总线地址,因而允许最多八个器件共享相同的I²C总线/SMBus。PCA9535和PCA9535C的固定I²C总线地址与PCA9555相同,允许最多八个这些器件以任意组合方式共享相同的I²C总线/SMBus。
名称/描述 | Modified Date |
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16-bit I2C-bus and SMBus, low power I/O port with interrupt (REV 5.0) PDF (183.0 kB) PCA9535_PCA9535C [English] | 15 Sep 2008 |
名称/描述 | Modified Date |
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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 |
名称/描述 | Modified Date |
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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 |
名称/描述 | Modified Date |
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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 |
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 |
Low-power GPIO expanders for portable applications; NXP® 8/16-bit I2C/SMBus GPIO expanders... (REV 1.0) PDF (239.0 kB) 75016020 [English] | 01 Jun 2007 |
名称/描述 | Modified Date |
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plastic small outline package; 24 leads; body width 7.5 mm (REV 1.0) PDF (379.0 kB) SOT137-1 [English] | 08 Feb 2016 |
plastic thin shrink small outline package; 24 leads; body width 4.4 mm (REV 1.0) PDF (353.0 kB) SOT355-1 [English] | 08 Feb 2016 |
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 |
plastic thermal enhanced very very thin quad flat package; no leads; 24 terminals; body 4 x 4 x 0.75 mm (REV 1.0) PDF (213.0 kB) SOT994-1 [English] | 08 Feb 2016 |
名称/描述 | Modified Date |
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HVQFN24; reel pack; standard product orientation; 12NC ending 118 (REV 1.0) PDF (196.0 kB) SOT616-1_118 [English] | 16 Jan 2014 |
TSSOP24; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or... (REV 4.1) PDF (227.0 kB) SOT355-1_118 [English] | 15 Apr 2013 |
SO24; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering... (REV 4.0) PDF (235.0 kB) SOT137-1_118 [English] | 12 Apr 2013 |
名称/描述 | Modified Date |
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Footprint for wave soldering (REV 1.0) PDF (8.0 kB) SO-SOJ-WAVE [English] | 08 Oct 2009 |
Footprint for wave soldering (REV 1.0) PDF (16.0 kB) SSOP-TSSOP-VSO-WAVE [English] | 08 Oct 2009 |
型号 | 状态 |
---|---|
PCA9535D | Active |
PCA9535CD | Active |
PCA9535CHF | Active |
PCA9535HF | Active |
PCA9535PW | Active |
PCA9535BS | Active |
PCA9535CPW | Active |
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 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
PCA9535BS | SOT616-1 | Reel 13" Q1/T1 | Active | PCA9535BS,118 (9352 739 44118) | 9535 | PCA9535BS | Always Pb-free | 0.0 | 2.0 | 5E8 | 1 | 1 | |||
PCA9535HF | SOT994-1 | Reel 13" Q1/T1 | Active | PCA9535HF,118 (9352 844 57118) | P35H | PCA9535HF | Always Pb-free | 0.0 | 2.0 | 5E8 | 1 | 1 | |||
PCA9535CPW | SOT355-1 | SSOP-TSSOP-VSO-WAVE | Reel 13" Q1/T1 | Active | PCA9535CPW,118 (9352 852 73118) | PCA9535C | PCA9535CPW | Always Pb-free | 0.0 | 2.0 | 5E8 | 1 | 1 | ||
Bulk Pack | Active | PCA9535CPW,112 (9352 852 73112) | PCA9535C | PCA9535CPW | Always Pb-free | 0.0 | 2.0 | 5E8 | 1 | 1 | |||||
PCA9535CD | SOT137-1 | SO-SOJ-WAVE | Reel 13" Q1/T1 | Active | PCA9535CD,118 (9352 852 71118) | PCA9535CD | PCA9535CD | Always Pb-free | 0.0 | 2.0 | 5E8 | 1 | 1 | ||
Bulk Pack | Active | PCA9535CD,112 (9352 852 71112) | PCA9535CD | PCA9535CD | Always Pb-free | 0.0 | 2.0 | 5E8 | 1 | 1 | |||||
PCA9535D | SOT137-1 | SO-SOJ-WAVE | Reel 13" Q1/T1 | Active | PCA9535D,118 (9352 739 45118) | PCA9535D | PCA9535D | week 11, 2005 | 0.0 | 2.0 | 5E8 | 1 | 1 | ||
Bulk Pack | Active | PCA9535D,112 (9352 739 45112) | PCA9535D | PCA9535D | week 11, 2005 | 0.0 | 2.0 | 5E8 | 1 | 1 | |||||
PCA9535CHF | SOT994-1 | Reel 13" Q1/T1 | Active | PCA9535CHF,118 (9352 852 72118) | P35C | PCA9535CHF | Always Pb-free | 0.0 | 2.0 | 5E8 | 1 | 1 | |||
PCA9535PW | SOT355-1 | SSOP-TSSOP-VSO-WAVE | Reel 13" Q1/T1 | Active | PCA9535PW,118 (9352 739 46118) | PCA9535PW | PCA9535PW | week 47, 2004 | 0.0 | 2.0 | 5E8 | 1 | 1 | ||
Bulk Pack | Active | PCA9535PW,112 (9352 739 46112) | PCA9535PW | PCA9535PW | week 47, 2004 | 0.0 | 2.0 | 5E8 | 1 | 1 |