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MAX7315 - 8-Port I/O Expander

General Description

The MAX7315 I2C™-/SMBus-compatible serial interfaced peripheral provides microprocessors with 8 I/O ports.

Each I/O port can be individually configured as either an open-drain current-sinking output rated at 50mA at 5.5V, or a logic input with transition detection.

Key Features

  • o 400kbps, 2-Wire Serial Interface, 5.5V Tolerant o 2V to 3.6V Operation o Overall 8-Bit PWM LED Intensity Control Global 16-Step Intensity Control Plus Individual 16-Step Intensity Control o Automatic Two-Phase LED Blinking o 50mA Maximum Port Output Current o Outputs Are 5.5V-Rated Open Drain o Inputs Are Overvoltage Protected to 5.5V o Transition Detection with Interrupt Output o Low Standby Current (1.2µA typ; 3.3µA max) o Tiny 3mm x 3mm, Thin QFN Package o -40°C to +125°C Temperature Range.

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Other Datasheets by Maxim Integrated (now Analog Devices)

Part Number Description
MAX7310 2-Wire-Interfaced 8-Bit I/O Port Expander
MAX7311 2-Wire-Interfaced 16-Bit I/O Port Expander
MAX7313 16-Port I/O Expander
MAX7314 18-Port GPIO
MAX7316 10-Port I/O Expander

Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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www.DataSheet4U.com 19-3056; Rev 0; 10/03 8-Port I/O Expander with LED Intensity Control and Interrupt General Description The MAX7315 I2C™-/SMBus-compatible serial interfaced peripheral provides microprocessors with 8 I/O ports. Each I/O port can be individually configured as either an open-drain current-sinking output rated at 50mA at 5.5V, or a logic input with transition detection. A ninth port can be used for transition detection interrupt or as a generalpurpose output. The outputs are capable of directly driving LEDs, or providing logic outputs with external resistive pullup up to 5.5V. PWM current drive is integrated with 8 bits of control.