Semtech Corp. I/O Expanders SX1509BIULTRT

I/O Expander 16 I²C 400kHz 28-QFN-UT (4x4)

I/O Expander 16 I²C 400kHz 28-QFN-UT (4x4)

I/O Expander 16 I²C 400kHz 28-QFN-UT (4x4)

Manufacturer: Semtech Corporation
Win Source Part Number: 101623-SX1509BIULTRT
Packaging: Reel - TR
Features: Keypad Controller, LED Output, POR
Mounting: SMD (SMT)
Output Type: Open Drain, Push-Pull
Number of I/O: 16
Current - Output Source/Sink: 8mA, 15mA
Interrupt Output: Yes
Family Name: SX1509BIULTRT
Categories: Integrated Circuits
Status: Active
Temperature Range - Operating: -40°C to 85°C
Case / Package: 28-QFN-UT (4x4)
Supply Voltage - Operating: 1.425 V to 3.6 V
Max Frequency: 400kHz
Alternative Parts (Cross-Reference): PI4IOE5V9521XTEX ; PI4IOE5V9522UEX; PI4IOE5V9537UEX;
Introduction Date: September 09, 2010
ECCN: EAR99
Country of Origin: Malaysia
Estimated EOL Date: 2027
Halogen Free: Compliant
Is this a common-used part?: Yes
Popularity: High
Fake Threat In the Open Market: 38 pct.
Supply and Demand Status: Balance

Telecom IC, 16 I/O, I2C, 400kHz, QFN, Surface Mount Product overview: SX1509BIULTRT from Semtech is an Interface Transceiver IC for serial communication, bus conversion, signal driving, receiver stages, and industrial networking. It is useful for engineers and buyers comparing datasheets, replacement parts, BOM lines, package options, lifecycle status, and procurement availability. Key searchable attributes include SMD, 400kHz, QFN. Search-friendly keywords include interface IC, transceiver, driver, receiver, CAN, RS-485, SMD, 400kHz, QFN, Interface Transceiver IC. This listing supports clearer product discovery for industrial, commercial, repair, automation, power, sensing, and embedded system projects. Product number 749-SX1509BIULTRT can be used for catalog matching and distributor lookup.