参数资料
| 型号： | PCA9500BS,118 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 1/26页 |
| 文件大小： | 0K |
| 描述： | IC I/O EXPANDER I2C 8B 16HVQFN |
| 产品培训模块： | I²C Bus Fundamentals |
| 特色产品： | NXP - I2C Interface |
| 标准包装： | 1 |
| 接口： | I²C，SM 总线 |
| 输入/输出数： | 8 |
| 中断输出： | 无 |
| 频率 - 时钟： | 400kHz |
| 电源电压： | 2.5 V ~ 3.6 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 16-VQFN 裸露焊盘 |
| 供应商设备封装： | 16-HVQFN |
| 包装： | 标准包装 |
| 包括： | EEPROM，POR |
| 产品目录页面： | 824 (CN2011-ZH PDF) |
| 其它名称： | 568-3351-6 |
1.
General description
The PCA9500 is an 8-bit I/O expander with an on-board 2-kbit EEPROM.
The I/O expander's eight quasi-bidirectional data pins can be independently assigned as
inputs or outputs to monitor board level status or activate indicator devices such as LEDs.
The system master writes to the I/O conguration bits in the same way as for the
PCF8574. The data for each input or output is kept in the corresponding Input or Output
register. The system master can read all registers.
The EEPROM can be used to store error codes or board manufacturing data for
read-back by application software for diagnostic purposes and is included in the I/O
expander package.
The PCA9500 has 3 address pins with internal pull-up resistors allowing up to 8 devices to
share the common two-wire I2C software protocol serial data bus. The xed GPIO I2C-bus
address is the same as the PCF8574 and the xed EEPROM I2C-bus address is the same
as the PCF8582C-2, so the PCA9500 appears as two separate devices to the bus master.
The PCA9500 supports hot insertion to facilitate usage in removable cards on backplane
systems.
The PCA9501 is an alternative to the functionally similar PCA9500 for systems where a
higher number of devices are required to share the same I2C-bus or an interrupt output is
required.
2.
Features
I 8 general purpose input/output expander/collector
I Drop-in replacement for PCF8574 with integrated 2-kbit EEPROM
I Internal 256 × 8 EEPROM
I Self timed write cycle
I 4 byte page write operation
I I2C-bus and SMBus interface logic
I Internal power-on reset
I Noise lter on SCL/SDA inputs
I 3 address pins allowing up to 8 devices on the I2C-bus/SMBus
I No glitch on power-up
I Supports hot insertion
I Power-up with all channels congured as inputs
I Low standby current
I Operating power supply voltage range of 2.5 V to 3.6 V
PCA9500
8-bit I2C-bus and SMBus I/O port with 2-kbit EEPROM
Rev. 04 — 15 April 2009
Product data sheet
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相关代理商/技术参数 |
参数描述 |
|---|---|
| PCA9500BSHP | 功能描述:接口-I/O扩展器 RoHS:否 制造商:NXP Semiconductors 逻辑系列: 输入/输出端数量: 最大工作频率:100 kHz 工作电源电压:1.65 V to 5.5 V 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:HVQFN-16 封装:Reel |
| PCA9500D | 功能描述:接口-I/O扩展器 I/O EXPANDER W/2K EE RoHS:否 制造商:NXP Semiconductors 逻辑系列: 输入/输出端数量: 最大工作频率:100 kHz 工作电源电压:1.65 V to 5.5 V 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:HVQFN-16 封装:Reel |
| PCA9500D,112 | 功能描述:接口-I/O扩展器 I/O EXPANDER W/2K EE RoHS:否 制造商:NXP Semiconductors 逻辑系列: 输入/输出端数量: 最大工作频率:100 kHz 工作电源电压:1.65 V to 5.5 V 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:HVQFN-16 封装:Reel |
| PCA9500D,118 | 功能描述:接口-I/O扩展器 8BIT I2C RoHS:否 制造商:NXP Semiconductors 逻辑系列: 输入/输出端数量: 最大工作频率:100 kHz 工作电源电压:1.65 V to 5.5 V 工作温度范围:- 40 C to + 85 C 安装风格:SMD/SMT 封装 / 箱体:HVQFN-16 封装:Reel |
| PCA9500D,118-CUT TAPE | 制造商:NXP 功能描述:PCA9500 Series 8-Bit I2C and SMBus I/O Port w/ 2-kbit EEPROM - SOIC - 16 |
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