PCA9555: 带有中断的16位I2C总线和SMBus I/O端口
PCA9555是一款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)扩展且开发用于增强NXP Semiconductors系列的I²C总线I/O扩展器。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。
PCA9555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。
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PCA9555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。PCA9555的固定I²C总线地址与PCA9554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。
PCA9555: 产品结构框图
Outline 3d SOT340-1
数据手册 (1)
| 名称/描述 | Modified Date |
|---|---|
| 16-bit I2C-bus and SMBus I/O port with interrupt (REV 8.0) PDF (539.0 kB) PCA9555 [English] | 22 Oct 2009 |
应用说明 (5)
| 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 |
| I2C/SMBus general purpose I/O expanders (REV 2.0) PDF (294.0 kB) AN469 [English] | 20 Jan 2005 |
| LED dimmer demoboard (REV 1.0) PDF (392.0 kB) AN10315 [English] | 11 Jan 2005 |
| I2C 2002-1A Evaluation Board (REV 2.0) PDF (2.2 MB) AN10146 [English] | 26 Feb 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 (5)
| 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 |
| Evaluate the I2C-bus with a comprehensive kit; NXP® I2C 2002-1A evaluation board kits OM6285 and OM6278 (REV 1.0) PDF (1.8 MB) 75016531 [English] | 01 Jul 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 |
| 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 |
封装信息 (5)
| 名称/描述 | Modified Date |
|---|---|
| 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 shrink small outline package; 24 leads; body width 5.3 mm (REV 1.0) PDF (349.0 kB) SOT340-1 [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 |
包装 (5)
| 名称/描述 | Modified Date |
|---|---|
| HVQFN24; Reel pack; SMD, 13", Q2/T3 Turned product orientation Orderable part number ending ,128 or HP Ordering code... (REV 1.0) PDF (185.0 kB) SOT616-1_128 [English] | 16 Jul 2014 |
| 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 |
| SSOP24; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or... (REV 1.0) PDF (230.0 kB) SOT340-1_118 [English] | 05 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 (3)
| 名称/描述 | Modified Date |
|---|---|
| Footprint for wave soldering (REV 1.0) PDF (8.0 kB) SO-SOJ-WAVE [English] | 08 Oct 2009 |
| Footprint for reflow soldering (REV 1.0) PDF (16.0 kB) SSOP-TSSOP-VSO-REFLOW [English] | 08 Oct 2009 |
| Footprint for wave soldering (REV 1.0) PDF (16.0 kB) SSOP-TSSOP-VSO-WAVE [English] | 08 Oct 2009 |
Design Support
- Expert mode sample code for 16-bit Totem Pole (REV 1.0) TXT 16-BIT-TOTEM-POLE-READ-WRITE 12/10/2014
IBIS
- PCA9555 IBIS model (REV 1.0) ibs PCA9555BS 8/13/2014
- PCA9555 IBIS model (REV 1.0) ibs PCA9555HF 8/13/2014
- PCA9555 IBIS model (REV 1.0) ibs PCA9555R 8/13/2014
订购信息
| 型号 | 状态 |
|---|---|
| PCA9555PW | Active |
| PCA9555DB | Active |
| PCA9555HF | Active |
| PCA9555BS | Active |
| PCA9555D | Active |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PCA9555D |  | SOT137-1 | SO-SOJ-WAVE | Reel 13" Q1/T1 | Active | PCA9555D,118 (9352 695 67118) | PCA9555D | PCA9555D |    | week 11, 2005 | 0.0 | 2.0 | 5E8 | 1 | 1 |
| Bulk Pack | Active | PCA9555D,112 (9352 695 67112) | PCA9555D | PCA9555D | | week 11, 2005 | 0.0 | 2.0 | 5E8 | 1 | 1 | ||||
| PCA9555DB | | SOT340-1 | SSOP-TSSOP-VSO-REFLOW
SSOP-TSSOP-VSO-WAVE SSOP-TSSOP-VSO-REFLOW SSOP-TSSOP-VSO-WAVE | Reel 13" Q1/T1 | Active | PCA9555DB,118 (9352 695 68118) | PCA9555 | PCA9555DB | | week 12, 2005 | 0.0 | 2.0 | 5E8 | 1 | 1 |
| Bulk Pack | Active | PCA9555DB,112 (9352 695 68112) | PCA9555 | PCA9555DB | | week 12, 2005 | 0.0 | 2.0 | 5E8 | 1 | 1 | ||||
| PCA9555BS |  | SOT616-1 | Reel 13" Q2/T3 | Active | PCA9555BSHP (9352 720 04128) | 9555 | PCA9555BS |  | Always Pb-free | 0.0 | 2.0 | 5E8 | 1 | 1 | |
| Reel 13" Q1/T1 | Active | PCA9555BS,118 (9352 720 04118) | 9555 | PCA9555BS | | Always Pb-free | 0.0 | 2.0 | 5E8 | 1 | 1 | ||||
| PCA9555PW |  | SOT355-1 | SSOP-TSSOP-VSO-WAVE | Reel 13" Q1/T1 | Active | PCA9555PW,118 (9352 695 69118) | PCA9555 | PCA9555PW | | week 47, 2004 | 0.0 | 2.0 | 5E8 | 1 | 1 |
| Bulk Pack | Active | PCA9555PW,112 (9352 695 69112) | PCA9555 | PCA9555PW | | week 47, 2004 | 0.0 | 2.0 | 5E8 | 1 | 1 | ||||
| PCA9555PW/DG | | SOT355-1 | SSOP-TSSOP-VSO-WAVE | Reel 13" Q1/T1 | Withdrawn | PCA9555PW/DG,118 (9352 869 39118) | PCA9555 | | Always Pb-free | 0.0 | 2.0 | 5E8 | 1 | 1 | |
| PCA9555HF |  | SOT994-1 | Reel 13" Q1/T1 | Active | PCA9555HF,118 (9352 844 58118) | P55H | PCA9555HF | | Always Pb-free | 0.0 | 2.0 | 5E8 | 1 | 1 |
- 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
- LED dimmer demoboard PCA9533
- I2C 2002-1A Evaluation Board lm75a
- 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
- Evaluate the I2C-bus with a comprehensive kit; NXP® I2C 2002-1A evaluation board kits OM6285 and OM6278 lm75a
- Create smarter, more efficient white goods; An industry-leading portfolio of cost-effective, power-saving solutions for... PMEG6010CE_AUTOMOTIVE
- Low-power GPIO expanders for portable applications; NXP® 8/16-bit I2C/SMBus GPIO expanders... pcf8570p
- design_con_2003_tecforum_i2c_b_1 lm75a
- Expert mode sample code for 16-bit Totem Pole PCAL9555APW
- PCA9555 IBIS model PCA9555BS
- PCA9555 IBIS model PCA9555HF
- PCA9555 IBIS model PCA9555PW
- plastic small outline package; 24 leads; body width 7.5 mm 74LVC4245A_Q100
- Footprint for wave soldering NPIC6C596A_Q100
- SO24; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or J Ordering... 74LVC4245A_Q100
- plastic shrink small outline package; 24 leads; body width 5.3 mm tda9886ts
- Footprint for reflow soldering 74HC_T_595_Q100
- SSOP24; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or... tda9886ts
- plastic thermal enhanced very thin quad flat package; no leads; 24 terminals; body 4 x 4 x 0.85 mm TFF1007HN
- HVQFN24; Reel pack; SMD, 13", Q2/T3 Turned product orientation Orderable part number ending ,128 or HP Ordering code... pca9548a
- HVQFN24; reel pack; standard product orientation; 12NC ending 118 TFF1007HN
- plastic thin shrink small outline package; 24 leads; body width 4.4 mm 74LVC4245A_Q100
- SSOP-TSSOP-VSO-WAVE LPC1114FDH28
- TSSOP24; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or... 74LVC4245A_Q100
- plastic thermal enhanced very very thin quad flat package; no leads; 24 terminals; body 4 x 4 x 0.75 mm pcal9555a
- PCA9555
- PCA9552
- 74LVC4245A
- TFF11152HN
- SA639DH
- PCAL9555A
