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PCAL6524 - Ultra low-voltage translating 24-bit Fm+ I2C ...

1. General descriptionThe PCAL6524 is a 24-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 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. In addition to providing a flexible set of GPIOs, it simplifies interconnection of a processor running at one voltage level down to V to I/O devices operating at a different voltage level V to V.

logic gates. Programmable pull-up and pull-down resistors eliminate the need for discrete components. PCAL6524 Ultra low-voltage translating 24-bit Fm+ I2C-bus/SMBus I/O expander with Agile I/O features, interrupt output and reset Rev. 2 — 15 May 2019 Product data sheet

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  Voltage, Logic

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