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SX1509BIULTRT The Semtech SX1509BIULTRT is a 16-channel IO expander featuring an I2C interface, suitable for low-power handheld battery-powered equipment. It supports dual independent I/O banks and offers features like LED driving and keypad scanning.
Mfr Part #:

SX1509BIULTRT

Available from 1 distributors
Mfr Name: Semtech
Semtech
The Semtech SX1509BIULTRT is a 16-channel IO expander featuring an I2C interface, suitable for low-power handheld battery-powered equipment. It supports dual independent I/O banks and offers features like LED driving and keypad scanning.
✓ Total Stock: 1,597 pcs
$ Price Range: $1.15

SX1509BIULTRT Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Xingangxin ✓
Non-Authorised Inventory information
1,597 pcs
On Request
1597 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

SX1509BIULTRT Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Clock Frequency
Current
Features
Interface
Interrupt Output
Mounting Type
Number of I
Operating Temperature
Output Type
Supplier Device Package
Supplier Package
Voltage
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SX1509BIULTRT Description

Short technical summary and product information.

The Semtech SX1509BIULTRT is an ultra-low voltage General Purpose Parallel Input/Output (GPIO) expander designed for low-power handheld battery-powered equipment. It provides 16 channels of I/O that can be expanded serially through a standard 400kHz I²C interface. This device is ideal for systems needing additional control and monitoring capabilities or where remote serial communication is advantageous.

 

Key features include dual independent I/O banks operating between 1.2V and 3.6V, with 5.5V tolerant I/Os. The SX1509BIULTRT integrates a programmable LED driver with 256-step PWM for intensity control, blinking, and breathing effects. It also includes an on-chip keypad scanning engine supporting up to a 64-key matrix without host interaction. The device operates from a core voltage as low as 1.425V and is rated for an operating temperature range of -40°C to 85°C.

 

Packaged in a 28-UFQFN Exposed Pad, the SX1509BIULTRT is designed for surface mount applications. It offers mask-programmable interrupts and a dedicated NINT pin to signal state changes on GPIO lines. Each GPIO is configurable via registers for data, direction, pull-up/pull-down, and interrupt masking.

SX1509BIULTRT Quick Information

Product Type: IO Expander
Canonical Name: SX1509BIULTRT 16-Channel I2C IO Expander with LED Driver and Keypad Engine

SX1509BIULTRT Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

SX1509BIULTRT Estimated Pricing

Qty Low High
1+ $1.15 $1.15

Estimated market price range - modelled values for guidance only, not live distributor offers.

SX1509BIULTRT Features

  • 16-channel I2C IO expander.
  • Dual independent I/O voltage rails.
  • Integrated LED driver with PWM.
  • On-chip keypad scanning engine.
  • Low voltage operation from 1.425V.

SX1509BIULTRT Applications

  • Low power handheld equipment.
  • Level shifting between microcontrollers.
  • LED lighting control applications.
  • Keypad matrix monitoring.

SX1509BIULTRT FAQs

4 frequently asked questions generated from this part’s specifications.
What is the operating voltage range of the SX1509BIULTRT?

The operating voltage range is from 1.425V to 3.6V.

What package does the SX1509BIULTRT come in?

It comes in a 28-UFQFN package with an exposed pad.

What is the operating temperature range of the SX1509BIULTRT?

The operating temperature range is from -40°C to 85°C.

Is the SX1509BIULTRT RoHS compliant?

RoHS compliance status is unverified; treat as low-confidence.

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