PCA9501BS: 带有中断、2-kbit EEPROM和6个地址引脚的8位I2C总线和SMBus I/O端口
PCA9501是一款8位I/O扩展器，带有板载2-kbit EEPROM。
I/O可扩展的八个准双向数据引脚可独立分配为输入或输出，以监视板卡电平状态或激活LED等指示器件。系统主器件按与PCF8574相同的方式写入I/O配置引脚。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。系统主器件可读取所有寄存器。
EEPROM可用于储存错误代码或板卡制造数据以便应用软件读回进行诊断，EEPROM包含在I/O扩展器封装内。
当任何输入状态与其对应的输入端口寄存器状态不同时，激活PCA9501低电平有效的开漏中断输出。它用于向系统指示主器件输入状态已改变且器件需要询问。
PCA9501有六个带有内部上拉电阻的地址引脚，允许最多64个器件共享共用的两线I²C总线软件协议串行数据总线。固定的GPIO地址以“0”开头而固定的EEPROM I²C总线地址以“1”开头，所以PCA9501看似总线主器件的两个独立器件。
PCA9501支持热插入以便在背板系统上使用移动卡。
PCA9501BS: 产品结构框图
sot662-1_3d
数据手册 (1)
| 名称/描述 | Modified Date |
|---|---|
| 8-bit I2C-bus and SMBus I/O port with interrupt, 2-kbit EEPROM and 6 address pins (REV 4.0) PDF (170.0 kB) PCA9501 [English] | 10 Feb 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 |
| I2C manual (REV 1.0) PDF (4.2 MB) AN10216 [English] | 27 Mar 2003 |
| 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 (4)
| 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 |
| 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 |
| Combination GPIO expanders and EEPROMs for smaller boards; NXP® 8-bit I2C/SMBus GPIO expanders with 2-K... (REV 1.0) PDF (227.0 kB) 75016018 [English] | 01 Jun 2007 |
封装信息 (1)
| 名称/描述 | Modified Date |
|---|---|
| plastic thermal enhanced very thin quad flat package; no leads; 20 terminals; body 5 x 5 x 0.85 mm (REV 1.0) PDF (209.0 kB) SOT662-1 [English] | 08 Feb 2016 |
包装 (1)
| 名称/描述 | Modified Date |
|---|---|
| HVQFN20; Reel pack; SMD, 13" Q1/T1 Standard product orientation Orderable part number ending ,118 or... (REV 1.0) PDF (266.0 kB) SOT662-1_118 [English] | 18 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 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PCA9501BS | Active | 8 | 2.5 | 3.6 | Y | 1 | 60 | 25 | 100 | 0.1 | Y | Quasi | Int I source | 400 | 111.83 | HVQFN20 | SOT662-1 | -40~85 | 64 | EEPROM 2K byte |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| PCA9501BS | | SOT662-1 | Reel 13" Q1/T1 | Active | PCA9501BS,118 (9352 738 13118) | 9501 | PCA9501BS |    | Always Pb-free | 0.0 | 2.0 | 5E8 | 1 | 1 |
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