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PCA9538 IC产品资料

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PCA9538 IC产品资料
资料编号:
377343
资料标题:
PCA9538
品 牌:
PHILIPS
点击次数:
462
文件大小:
200
资料属性:
....

PCA9538 资料标题简介

8-bit I2C and SMBus low power I/O port

PCA9538 资料关键信息

The PCA9538 is a 16-pin CMOS device that provide 8 bits of
General Purpose parallel Input/Output (GPIO) expansion with
interrupt and reset for I2C/SMBus applications and was developed
to enhance the Philips family of I2C I/O expanders. I/O expanders
provides a simple solution when additional I/O is needed for ACPI
power switches, sensors, pushbuttons, LEDs, fans, etc.
The PCA9538 consists of an 8-bit Configuration 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 configuration 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.
The PCA9538 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, replacement of A2 with
RESET and different address range.
The PCA9538 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. The RESET pin
causes the same reset/initialization to occur without depowering the
device.
Two hardware pins (A0 and A1) vary the fixed I2C address and allow
up to four devices to share the same I2C/SMBus.

特别说明:如遇压缩包有密码,请在压缩包中注释说明中查找。

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PCA9538 相关资料推介

型号 厂商 描述 文件大小 下载
PCA9538 PHILIPS 8-bit I2C and SMBus low power I/O port 200
PCA9536 TI Remote 4-Bit I2C and SMBus I/O Expander With Configuration Registers 767
PCA9535 NXP 16-bit I2C-bus and SMBus, low power I/O port with interrupt 194
PCA9532 NXP 16-bit I2C LED dimmer 170
PCA9535HF NXP 16-bit I2C-bus and SMBus, low power I/O port with interrupt 194
PCA9535BS NXP 16-bit I2C-bus and SMBus, low power I/O port with interrupt 194
PCA9535 TI Remote 16-Bit I2C and SMBus, Low-Power I/O Expander 1009
PCA9535CD NXP 16-bit I2C-bus and SMBus, low power I/O port with interrupt 194
PCA9535PW NXP 16-bit I2C-bus and SMBus, low power I/O port with interrupt 194
PCA9536 NXP 4-bit I2C and SMBus I/O po 160
PCA9539 TI 16 位 I2C 和 SMBus 低功耗 I/O 扩展器 寄存器 790
PCA9535CPW NXP 16-bit I2C-bus and SMBus, low power I/O port with interrupt 194
PCA9534A TI Remote 8-Bit I2C and SMBus Low-Power I/O Expander With Interrupt Output and Conf 1040
PCA9535C NXP 16-bit I2C-bus and SMBus, low power I/O port with interrupt 194
PCA9530 NXP 2-bit I2C LED dimmer 139
PCA9535D NXP 16-bit I2C-bus and SMBus, low power I/O port with interrupt 194
PCA9531 NXP 8-bit I2C-bus LED dimmer 164
PCA9533 NXP 4-bit I2C LED dimmer 134
PCA9534 PHILIPS 8-bit I2C and SMBus, low power I/O port 147
PCA9535CHF NXP 16-bit I2C-bus and SMBus, low power I/O port with interrupt 194

PCA9538 相关产品库存信息

型号 厂商 封装 描述 资料 采购
PCA9530DP PHILIPS TSSOP-8 2-bitI2C型LED调光
PCA9536DP Philips SSOP 全新原装
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