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PCA9556

Part Number	PCA9556
Manufacturer	NXP
Description	Octal SMBus Registered Interface
Published	Mar 22, 2005
Detailed Description	INTEGRATED CIRCUITS PCA9556 Octal SMBus Registered Interface Product specification 1998 Dec 18 Philips Semiconductors ...
Datasheet	PCA9556 PDF File

Overview

INTEGRATED CIRCUITS PCA9556 Octal SMBus Registered Interface Product specification 1998 Dec 18 Philips Semiconductors Philips Semiconductors Product specification Octal SMBus Registered Interface PCA9556 FEATURES • SMBus compliance with fixed 3.
3V voltage levels • Operating power supply voltage range of 3.
0V – 3.
6V • Active high polarity inverter register • Write protect register • Active low reset pin • Low leakage current on power-down • Noise filter on SCL/SDA inputs • No glitch on power-up • Internal power-on reset • 8 I/O pins which default to 8 inputs • High impedance open drain on I/O DESCRIPTION The PCA9556 is a silicon CMOS circuit which provides parallel input/output expans...

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