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See Technical Specifications

SX1509BIULTRT

Ultra-low-voltage operation

Manufacturer:

Semtech
Mfr.Part #:

SX1509BIULTRT
Datasheet:

SX1509BIULTRT Datasheet (PDF)
Pin Count:

29
Released Date:

Feb 7, 2017
Last Modified Date:

Mar 7, 2023 4:10 PM UTC
EDA/CAD Models:

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SX1509BIULTRT 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 4-, 8-, 16-channel configuration and allows easy serial expansion of I/O through a standard 400kHz I²C interface.

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 Channels of True Bi-directional Style I/O
Programmable Pull-up/Pull-down
Push/Pull or Open-drain outputs
Programmable Polarity
• Open Drain Active Low Interrupt Output (NINT)
Bit Maskable
Programmable Edge Sensitivity
• Built-in Clock Management (Internal 2MHz
Oscillator/External Clock Input, 7 clock values)
OSCIO can be Configured as GPO
• 400kHz I2C Compatible Slave Interface
• 4 User-Selectable I²C Slave Addresses
• Power-On Reset and Reset Input (NRESET)
• Ultra Low Current Consumption: 1uA Typ
• -40°C to +85°C Operating Temperature Range
• Up to 2kV HBM ESD Protection
• Small Footprint Packages
• Pb & Halogen Free, RoHS/WEEE compliant