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参数资料
| 型号： | PCA9535CHF,118 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 1/26页 |
| 文件大小： | 0K |
| 描述： | IC I/O EXPANDER I2C 16B 24HWQFN |
| 标准包装： | 6,000 |
| 接口： | I²C，SM 总线 |
| 输入/输出数： | 16 |
| 中断输出： | 是 |
| 频率 - 时钟： | 400kHz |
| 电源电压： | 2.3 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 24-WFQFN 裸露焊盘 |
| 供应商设备封装： | 24-HWQFN（4x4） |
| 包装： | 带卷 (TR) |
| 包括： | POR |
| 其它名称： | 935285272118 PCA9535CHF-T PCA9535CHF-T-ND |
1.
General description
The PCA9535 and PCA9535C are 24-pin CMOS devices that provide 16 bits of General
Purpose parallel Input/Output (GPIO) expansion for I2C-bus/SMBus applications and was
developed to enhance the NXP Semiconductors family of I2C-bus I/O expanders. The
improvements include higher drive capability, 5 V I/O tolerance, lower supply current,
individual I/O conguration, and smaller packaging. I/O expanders provide a simple
solution when additional I/O is needed for ACPI power switches, sensors, push buttons,
LEDs, fans, etc.
The PCA9535 and PCA9535C consist of two 8-bit Conguration (Input or Output
selection), Input, Output and Polarity Inversion (active HIGH or active LOW operation)
registers. The system master can enable the I/Os as either inputs or outputs by writing to
the I/O conguration bits. The data for each input or output is kept in the corresponding
Input or Output register. The polarity of the read register can be inverted with the Polarity
Inversion register. All registers can be read by the system master. Although pin-to-pin and
I2C-bus address compatible with the PCF8575, software changes are required due to the
enhancements and are discussed in
Application Note AN469.
The PCA9535 is identical to the PCA9555 except for the removal of the internal I/O pull-up
resistor which greatly reduces power consumption when the I/Os are held LOW.
The PCA9535C is identical to the PCA9535 except that all the I/O pins are
high-impedance open-drain outputs.
The PCA9535 and PCA9535C open-drain interrupt output is activated when any input
state differs from its corresponding Input Port register state and is used to indicate to the
system master that an input state has changed. The power-on reset sets the registers to
their default values and initializes the device state machine.
Three hardware pins (A0, A1, A2) vary the xed I2C-bus address and allow up to eight
devices to share the same I2C-bus/SMBus. The xed I2C-bus address of the PCA9535
and PCA9535C are the same as the PCA9555 allowing up to eight of these devices in any
combination to share the same I2C-bus/SMBus.
2.
Features
I Operating power supply voltage range of 2.3 V to 5.5 V
I 5 V tolerant I/Os
I Polarity Inversion register
I Active LOW interrupt output
I Low standby current
I Noise lter on SCL/SDA inputs
PCA9535; PCA9535C
16-bit I2C-bus and SMBus, low power I/O port with interrupt
Rev. 05 — 15 September 2008
Product data sheet
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相关代理商/技术参数 |
参数描述 |
|---|---|
| PCA9535CHF-T | 功能描述:I2C 接口集成电路 DUAL I2C/SMBUS VOLT TRANSL 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 |
| PCA9535CPW | 功能描述:I2C 接口集成电路 16BIT I2C FM TP GPIO INT 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 |
| PCA9535CPW,112 | 功能描述:I2C 接口集成电路 16BIT I2C FM TP GPIO 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 |
| PCA9535CPW,118 | 功能描述:I2C 接口集成电路 16BIT I2C FM TP GPIO 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 |
| PCA9535CPW118 | 制造商:Rochester Electronics LLC 功能描述: 制造商:NXP 功能描述: 制造商:NXP Semiconductors 功能描述: |
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