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SX1508B - Worlds Lowest Voltage Level Shifting GPIO

Description

The SX1508B and SX1509B are complete ultra low voltage General Purpose parallel Input/Output (GPIO) expanders ideal for low power handheld battery powered equipment.

Features

  • 1.2V to 3.6V Low Operating Voltage with Dual Independent I/O Rails (VCC1, VCC2) Enable Direct Level Shifting Between I/O Banks and Host Controller 5.5V Tolerant I/Os, Up to 15mA Output Sink on All I/Os (No Total Sink Current Limit) Integrated LED Driver for Enhanced Lighting Intensity Control (256-step PWM) Blink Control (224 On/Off values) Breathing Control (224 Fade In/Out values) On-Chip Keypad Scanning Engine Support Up to 8x8 Matrix (64 Keys) Configurable Input Debouncer 8/16 Chan.

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Datasheet preview – SX1508B

Datasheet Details

Part number SX1508B
Manufacturer Semtech Corporation
File Size 2.05 MB
Description Worlds Lowest Voltage Level Shifting GPIO
Datasheet download datasheet SX1508B Datasheet
Additional preview pages of the SX1508B datasheet.

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Full PDF Text Transcription

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SX1508B/SX1509B World’s Lowest Voltage Level Shifting GPIO with LED Driver and Keypad Engine ADVANCED COMMUNICATIONS & SENSING SX1508B/SX1509B World’s Lowest Voltage Level Shifting GPIO with LED Driver and Keypad Engine GENERAL DESCRIPTION The SX1508B and SX1509B are complete ultra low voltage General Purpose parallel Input/Output (GPIO) expanders ideal for low power handheld battery powered equipment. This family of GPIOs comes in 8-, 16-channel configuration and allows easy serial 2 expansion of I/O through a standard 400kHz I C interface. GPIO devices can provide additional control and monitoring when the microcontroller or chipset has insufficient I/O ports, or in systems where serial communication and control from a remote location is advantageous.
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