The PCA9557 is a silicon CMOS circuit which provides parallel input/output expansion forSMBus
2008-07-15 10:16
项目上用到的一款蓝牙芯片引脚太少，选择了PCA9557扩展IO，通过一路i2c可以扩展出8个IO。这款芯片没有中断输入，所以更适合做扩展输出引脚用，内部寄存器也比较少，只有4个，使用起来很容易。...
2022-01-17 06:02
项目上用到的一款蓝牙芯片引脚太少，选择了PCA9557扩展IO，通过一路i2c可以扩展出8个IO。这款芯片没有中断输入，所以更适合做扩展输出引脚用，内部寄存器也比较少，只有4个，使用起来很容易。...
2022-01-18 10:47
电子发烧友网为你提供TI(ti)PCA9557相关产品参数、数据手册，更有PCA9557的引脚图、接线图、封装手册、中文资料、英文资料，PCA9557真值表，PCA9557
2018-11-02 17:59
PCA9557 - 8-bit I2C and SMBus I/0 port with reset - NXP Semiconductors
2022-11-04 17:22
PCA9557 Remote 8-Bit I2C and SMBus Low-Power I/O Expander datasheet (Rev. J)
2022-11-04 17:22
PCA9557 - 8-bit I2C-bus and SMBus I/O port with reset - NXP Semiconductors
2022-11-04 17:22
The PCA9557 is a silicon CMOS circuit which provides parallel input/output expansion for SMBus
2010-03-12 15:31
电子发烧友网站提供《PCA9557远程8位I2C和SMBus低功耗I/O扩展器数据表.pdf》资料免费下载
2024-06-28 11:01
Dear Customer: This is an information-only announcement of a change to a device that is currently offered by Texas Instruments. The changes discussed within this PCN are for your information only.
2010-08-08 22:01
