SX1509B - Worlds Lowest Voltage Level Shifting GPIO
SEMTECH
Download the SX1509B datasheet PDF.
This datasheet also covers the SX1508B variant, as both devices belong to the same worlds lowest voltage level shifting gpio family and are provided as variant models within a single manufacturer datasheet.
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.
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.
Full PDF Text Transcription for SX1509B (Reference)
Note: Below is a high-fidelity text extraction (approx. 800 characters) for
SX1509B. For precise diagrams, and layout, please refer to the original PDF.
SX1508B/SX1509B World’s Lowest Voltage Level Shifting GPIO with LED Driver and Keypad Engine ADVANCED COMMUNICATIONS & SENSING SX1508B/SX1509B World’s Lowest Voltage Leve...
View more extracted text
D 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
SX1509B Datasheet
