PCA9557 8-bit I2C and SMBus I/0 port with reset

NXP

Description

INTEGRATED CIRCUITS PCA9557 8-bit I2C and SMBus I/0 port with reset Product data File under Integrated Circuits * ICL03 2001 Dec 12 Philips .
The PCA9557 is a silicon CMOS circuit which provides parallel input/output expansion for SMBus and I2C applications.

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Datasheet Specifications

Part number: PCA9557
Manufacturer: NXP ↗
File Size: 127.39 KB
Datasheet: PCA9557_PhilipsSemiconductors.pdf
Description: 8-bit I2C and SMBus I/0 port with reset

Features

* PCA9556 PIN CONFIGURATION SCL 1 SDA 2 16 VDD 15 RESET 14 I/O7 13 I/O6 12 I/O5 11 I/O4 10 I/O3 9 I/O2
* Lower voltage, higher performance migration path for the
* 8 general purpose input/output expander/collector
* Input/output configuration register
* Active HIGH po

Applications

* The PCA9557 consists of an 8-bit input port register, 8-bit output port register, and an I2C/SMBus interface. It has low current consumption and a high impedance open drain output pin, I/O0. The system master can enable the PCA9557’s I/O as either input or output by writing to the configuration reg

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8-bit I2C and SMBus port with reset NXP

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