PCA9557BS: 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。
PCA9557BS: 产品结构框图
PCA9557BS: 应用结构框图
sot629-1_3d
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 thermal enhanced very thin quad flat package; no leads; 16 terminals; body 4 x 4 x 0.85 mm (REV 1.0) PDF (200.0 kB) SOT629-1 [English] | 08 Feb 2016 |
包装 (2)
| 名称/描述 | Modified Date |
|---|---|
| HVQFN16; Reel pack; SMD, 13" Q2/T3 Standard product orientation Orderable part number ending ,128 or... (REV 1.0) PDF (189.0 kB) SOT629-1_128 [English] | 14 Dec 2015 |
| HVQFN16; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or... (REV 1.0) PDF (259.0 kB) SOT629-1_118 [English] | 17 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 |
Design Support
- Expert mode sample code for PCA9557 (REV 1.0) TXT 8-BIT-PCA9557-TOTEM-POLE-READ- 12/10/2014
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PCA9557BS | Active | 8 | 2.3 | 5.5 | Y | 1 | 0.25 | 25 | 100 | 20 | Y | Totem Pole/Open Drain | Y | 400 | 16.81 | HVQFN16 | SOT629-1 | -40~85 | 8 | Only 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 | EFR | IFR(FIT) | MTBF（小时） | MSL | MSL LF |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PCA9557BS | | SOT629-1 | Reel 13" Q2/T3 | Active | PCA9557BSHP (9352 727 75128) | 9557 | PCA9557BS |    | Always Pb-free | 0.0 | 2.0 | 5E8 | 1 | 1 | |
| Reel 13" Q1/T1 | Active | PCA9557BS,118 (9352 727 75118) | 9557 | PCA9557BS | | Always Pb-free | 0.0 | 2.0 | 5E8 | 1 | 1 |
- 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
- plastic thermal enhanced very thin quad flat package; no leads; 16 terminals; body 4 x 4 x 0.85 mm PCA9633
- HVQFN16; Reel pack; SMD, 13" Q2/T3 Standard product orientation Orderable part number ending ,128 or... PCA9551
- HVQFN16; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or... PCA9633
- PCA9557
- PCA9557
- PCA9633
