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

The PCA9557 is a silicon CMOS circuit which provides parallel input/output expansion for SMBus and I2C-bus applications. The PCA9557 consists of an 8-bit input port register, 8-bit output port register, and an I2C-bus/SMBus interface. It has low current consumption and a high-impedance open-drain ou Lower voltage, higher performance migration path for the PCA9556\n8 general purpose input/output expander/collector\nInput/output configuration register\nActive HIGH polarity inversion register\nI2C-bus and SMBus interface logic\nInternal power-on reset\nNoise filter on SCL/SDA inputs\nActive LOW re;

恩XP

Package：16-SOIC（0.154"，3.90mm 寬）；包裝：管件 類別：集成電路（IC） I/O 擴展器 描述：IC I/O EXPANDER I2C 8B 16SOIC

TI

德州儀器

Package：16-SSOP（0.209"，5.30mm 寬）；包裝：管件 類別：集成電路（IC） I/O 擴展器 描述：IC I/O EXPANDER I2C 8B 16SSOP

TI

德州儀器

Package：16-TFSOP（0.173"，4.40mm 寬）；包裝：管件 類別：集成電路（IC） I/O 擴展器 描述：IC I/O EXPANDER I2C 8B 16TVSOP

TI

德州儀器