PCAL6534 Datasheet (NXP) - Ultra low-voltage translating 34-bit Fm+ I2C-bus/SMBus I/O expander

PCAL6534, Ultra low-voltage translating 34-bit Fm+ I2C-bus/SMBus I/O expander

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 prov

PCAL6534 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