PCAL6534 Datasheet Ultra Low-voltage Translating 34-bit Fm+ I2c-bus/smbus I/o Expander

Manufacturer: NXP Semiconductors

Overview: PCAL6534 Ultra low-voltage translating 34-bit Fm+ I2C-bus/SMBus I/O expander with Agile.

Datasheet Details

Part number	PCAL6534
Manufacturer	NXP Semiconductors
File Size	2.50 MB
Description	Ultra low-voltage translating 34-bit Fm+ I2C-bus/SMBus I/O expander
Datasheet	PCAL6534-NXP.pdf

General Description

The PCAL6534 is a 34-bit general purpose I/O expander that provides remote I/O expansion for most microcontroller families via the Fast-mode Plus (Fm+) I2C-bus interface.

The ultra low-voltage interface allows for direct connection to a microcontroller operating down to 0.8 V.

NXP I/O expanders provide a simple solution when additional I/Os are needed while keeping interconnections to a minimum, for example, in battery-powered mobile applications for interfacing to sensors, push buttons, keypad, etc.

Key Features

I2C-bus to parallel port expander.
1 MHz Fast-mode Plus I2C-bus.
Operating power supply voltage range of 0.8 V to 3.6 V on the I2C-bus side.
Allows bidirectional voltage-level translation and GPIO expansion between 0.8 V to 3.6 V SCL/SDA and 1.8 V, 2.5 V, 3.3 V, 5.5 V Port P.
Low standby current consumption: 2.0 A typical at 3.3 V VDD(P).
Schmitt trigger action allows slow input transition and better switching noise immunity at the SCL and SDA inputs.
Vhys =.

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