参数资料
| 型号： | PCA9501BS,118 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 1/28页 |
| 文件大小： | 0K |
| 描述： | IC I/O EXPANDER I2C 8B 20HVQFN |
| 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： | 是 |
| 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： | 20-VQFN 裸露焊盘 |
| 供应商设备封装： | 20-HVQFN（5x5） |
| 包装： | 标准包装 |
| 包括： | EEPROM |
| 产品目录页面： | 824 (CN2011-ZH PDF) |
| 配用： | 568-4002-ND - DEMO BOARD I2C |
| 其它名称： | 568-3352-6 |
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1.
General description
The PCA9501 is an 8-bit I/O expander with an on-board 2-kbit EEPROM.
The I/O expandable 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 are included in the I/O
expander package.
The PCA9501 active LOW open-drain interrupt output is activated when any input state
differs from its corresponding input port register state. It is used to indicate to the system
master that an input state has changed and the device needs to be interrogated.
The PCA9501 has six address pins with internal pull-up resistors allowing up to
64 devices to share the common two-wire I2C-bus software protocol serial data bus. The
xed GPIO address starts with ‘0’ and the xed EEPROM I2C-bus address starts with ‘1’,
so the PCA9501 appears as two separate devices to the bus master.
The PCA9501 supports hot insertion to facilitate usage in removable cards on backplane
systems.
2.
Features
I 8 general purpose input/output expander/collector
I Replacement for PCF8574 with integrated 2-kbit EEPROM
I Internal 256 × 8 EEPROM
I Self timed write cycle (5 ms typical)
I 16 byte page write operation
I I2C-bus and SMBus interface logic
I Internal power-on reset
I Noise lter on SCL/SDA inputs
I Active LOW interrupt output
I 6 address pins allowing up to 64 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
PCA9501
8-bit I2C-bus and SMBus I/O port with interrupt, 2-kbit
EEPROM and 6 address pins
Rev. 04 — 10 February 2009
Product data sheet
相关PDF资料 |
PDF描述 |
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| PCA9535BS,118 | IC I/O EXPANDER I2C 16B 24HVQFN |
| 2-583859-3 | CONN CARDEDGE HSNG 36POS DL .156 |
| PCA9500BS,118 | IC I/O EXPANDER I2C 8B 16HVQFN |
| 1-583864-3 | HOUSING CSTL 125 C/L 28 POS |
| 2-583861-5 | CONN CARDEDGE HSNG .100 36DL POS |
相关代理商/技术参数 |
参数描述 |
|---|---|
| PCA9501BS-T | 功能描述:接口-I/O扩展器 8BIT I2C FMQB GPIONT PU2K EPR 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 |
| PCA9501D | 功能描述:接口-I/O扩展器 8BIT I2C FMQB GPIONT PU2K EPR 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 |
| PCA9501D,112 | 功能描述:接口-I/O扩展器 8BIT I2C FMQB GPIONT 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 |
| PCA9501D,118 | 功能描述:接口-I/O扩展器 8BIT I2C FMQB GPIONT PU2K EPR 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 |
| PCA9501PW | 功能描述:I2C 接口集成电路 I/O EXPANDER W/2K EE RoHS:否 制造商:NXP Semiconductors 电源电压-最大:5.5 V 电源电压-最小:2.3 V 最大工作频率:400 KHz 最大工作温度:+ 85 C 封装 / 箱体:TSSOP-16 |
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