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PCA9554APW

8-bit I2C-bus and SMBus I/O port with interrupt

Generaldescription ThePCA9554andPCA9554Aare16-pinCMOSdevicesthatprovide8bitsofGeneralPurposeparallelInput/Output(GPIO)expansionforI2C-bus/SMBusapplicationsandweredevelopedtoenhancetheNXPSemiconductorsfamilyofI2C-busI/Oexpanders.Theimprovementsincludehigherd

ETC

ETC

PCA9554APW

8-bit I2C-bus and SMBus I/O port with interrupt

Generaldescription ThePCA9554andPCA9554Aare16-pinCMOSdevicesthatprovide8bitsofGeneralPurposeparallelInput/Output(GPIO)expansionforI2C-bus/SMBusapplicationsandweredevelopedtoenhancetheNXPSemiconductorsfamilyofI2C-busI/Oexpanders.Theimprovementsincludehigherd

ETC

ETC

PCA9554APW

8-bit I2C and SMBus I/O port with interrupt

DESCRIPTION ThePCA9554andPCA9554Aare16-pinCMOSdevicesthatprovide8bitsofGeneralPurposeparallelInput/Output(GPIO)expansionforI2C/SMBusapplicationsandweredevelopedtoenhancethePhilipsfamilyofICI/Oexpanders.Theimprovementsincludehigherdrivecapability,5VI/Ot

PHIPhilips Semiconductors

飞利浦荷兰皇家飞利浦

PHI

PCA9554APW

8-bit I2C-bus and SMBus I/O port with interrupt; • Operating power supply voltage range of 2.3 V to 5.5 V\n• 5 V tolerant I/Os\n• Polarity Inversion register\n• Active LOW interrupt output\n• Low standby current\n• Noise filter on SCL/SDA inputs\n• No glitch on power-up\n• Internal power-on reset\n• 8 I/O pins which default to 8 inputs\n• 0 Hz to 400 kHz clock frequency\n• ESD protection exceeds 2000 V HBM per JESD22-A114 and 1000 V CDM perJESD22-C101\n• Latch-up testing is done to JEDEC Standard JESD78 which exceeds 100 mA\n• AEC-Q100 compliance available\n• Packages offered: DIP16, SO16, SSOP16, SSOP20, TSSOP16, HVQFN16 (2 versions: 4 mm x 4 mm x 0.85 mm and 3 mm x 3 mm x 0.85 mm), and bare die\n;

The PCA9554 and PCA9554A are 16-pin CMOS devices that provide 8 bits of General Purpose parallel Input/Output (GPIO) expansion for I2C-bus/SMBus applications and were 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 configuration, 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, and so on.\nThe PCA9554/PCA9554A consist of an 8-bit Configuration register (Input or Output selection); 8-bit Input Port register, 8-bit Output Port 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 Port or Output Port 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 PCF8574 series, software changes are required due to the enhancements and are discussed in Application Note AN469.\nThe PCA9554/PCA9554A 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.\nThree hardware pins (A0, A1, A2) vary the fixed I2C-bus address and allow up to eight devices to share the same I2C-bus/SMBus. The PCA9554A is identical to the PCA9554 except that the fixed I2C-bus address is different allowing up to sixteen of these devices (eight of each) on the same I2C-bus/SMBus.\n

恩XP

恩XP

PCA9554APW

REMOTE 8-BIT I2C AND SMBus I/O EXPANDER WITH INTERRUPT OUTPUT AND CONFIGURATION REGISTERS

TITexas Instruments

德州仪器美国德州仪器公司

PCA9554APW

SMBus I/O Expander With Interrupt Output

TI1Texas Instruments

德州仪器美国德州仪器公司

PCA9554APW

Package:16-TSSOP(0.173",4.40mm 宽);包装:管件 类别:集成电路(IC) I/O 扩展器 描述:IC I/O EXPANDER I2C 8B 16TSSOP

TI2Texas Instruments

德州仪器美国德州仪器公司

PCA9554APW,112

8-bit I2C-bus and SMBus I/O port with interrupt

Generaldescription ThePCA9554andPCA9554Aare16-pinCMOSdevicesthatprovide8bitsofGeneralPurposeparallelInput/Output(GPIO)expansionforI2C-bus/SMBusapplicationsandweredevelopedtoenhancetheNXPSemiconductorsfamilyofI2C-busI/Oexpanders.Theimprovementsincludehigherd

ETC

ETC

PCA9554APW,118

8-bit I2C-bus and SMBus I/O port with interrupt

Generaldescription ThePCA9554andPCA9554Aare16-pinCMOSdevicesthatprovide8bitsofGeneralPurposeparallelInput/Output(GPIO)expansionforI2C-bus/SMBusapplicationsandweredevelopedtoenhancetheNXPSemiconductorsfamilyofI2C-busI/Oexpanders.Theimprovementsincludehigherd

ETC

ETC

PCA9554APWG4

REMOTE 8-BIT I2C AND SMBus I/O EXPANDER WITH INTERRUPT OUTPUT AND CONFIGURATION REGISTERS

TITexas Instruments

德州仪器美国德州仪器公司

产品属性

  • 产品编号:

    PCA9554APW

  • 制造商:

    Texas Instruments

  • 类别:

    集成电路(IC) > I/O 扩展器

  • 包装:

    管件

  • I/O 数:

    8

  • 接口:

    I²C,SMBus

  • 中断输出:

  • 特性:

    POR

  • 输出类型:

    推挽式

  • 电流 - 灌/拉输出:

    10mA,25mA

  • 电压 - 供电:

    2.3V ~ 5.5V

  • 工作温度:

    -40°C ~ 85°C

  • 安装类型:

    表面贴装型

  • 封装/外壳:

    16-TSSOP(0.173",4.40mm 宽)

  • 供应商器件封装:

    16-TSSOP

  • 描述:

    IC I/O EXPANDER I2C 8B 16TSSOP

供应商型号品牌批号封装库存备注价格
TI
21+
TSSOP16
3800
进口全新原装现货
询价
恩XP
23+
NA
2000
询价
恩XP
24+
TSSOP16
45524
原装正品,现货库存,1小时内发货
询价
恩XP
25+
TSSOP16
32360
NXP/恩智浦全新特价PCA9554APW即刻询购立享优惠#长期有货
询价
118
87500
15+
0
原厂原装
询价
恩XP
2021+
TSSOP16
9450
原装现货。
询价
恩XP
21+
TSSOP16
10000
全新原装公司现货
询价
恩XP
21+
TSSOP
8080
只做原装,质量保证
询价
恩XP
23+
N/A
12000
一级代理,专注军工、汽车、医疗、工业、新能源、电力
询价
MAXIM/美信
2021+
SOP-8
9000
全新原装正品 现货供应
询价
更多PCA9554APW供应商 更新时间2025-7-30 17:18:00