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SX1508B Datasheet Worlds Lowest Voltage Level Shifting Gpio

Manufacturer: SEMTECH

Overview: SX1508B/SX1509B World’s Lowest Voltage Level Shifting GPIO with LED Driver and Keypad Engine ADVANCED MUNICATIONS & SENSING SX1508B/SX1509B World’s Lowest Voltage Level Shifting GPIO with LED Driver and Keypad.

General Description

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

This family of GPIOs es 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 munication and control from a remote location is advantageous.

Key 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.

SX1508B Distributor