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参数资料
| 型号： | PCA9534PW/DG,118 |
| 厂商： | NXP Semiconductors |
| 文件页数： | 1/25页 |
| 文件大小： | 0K |
| 描述： | IC I/O EXPANDER I2C/SMBU 16TSSOP |
| 标准包装： | 2,500 |
| 系列： | * |
1.
General description
The PCA9534 is a 16-pin CMOS device that provide 8 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, 400 kHz clock frequency, 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 PCA9534 consists of an 8-bit Conguration register (Input or Output selection); 8-bit
Input register, 8-bit Output register and an 8-bit Polarity Inversion register (active HIGH or
active LOW operation). 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 Input Port 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 PCF8574 series,
software changes are required due to the enhancements and are discussed in
Application
Note AN469.
The PCA9534 is identical to the PCA9554 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 PCA9534 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.
2.
Features
I 8-bit I2C-bus GPIO
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
I No glitch on power-up
I Internal power-on reset
PCA9534
8-bit I2C-bus and SMBus low power I/O port with interrupt
Rev. 03 — 6 November 2006
Product data sheet
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相关代理商/技术参数 |
参数描述 |
|---|---|
| PCA9534PWG4 | 功能描述:接口-I/O扩展器 Rem 8B I2C & Lo-Pwr I/O Expander 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 |
| PCA9534PWR | 功能描述:接口-I/O扩展器 Remote 8B I2C & Lo- Pwr I/O Expander 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 |
| PCA9534PWRG4 | 功能描述:接口-I/O扩展器 Remote 8B I2C & Lo- Pwr I/O Expander 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 |
| PCA9534RGTR | 制造商:TI 制造商全称:Texas Instruments 功能描述:REMOTE 8-BIT I2C AND SMBus LOW-POWER I/O EXPANDER WITH INTERRUPT OUTPUT AND CONFIGURATION REGISTERS |
| PCA9534RGVR | 功能描述:接口-I/O扩展器 Remote 8B I2C & Lo- Pwr I/O Expander 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 |
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