SX1509 16 Channel I/O Output Module

 SX1509 16 Channel I/O Output Module and keyboard GPIO Voltage Level LED Driver

The SX1509 Breakout is a 16-channel GPIO expander with an I²C interface – that means with just two wires, your microcontroller can interface with 16 fully configurable digital input/output pins. The SX1509 can do so much more than just simple digital pin control. It can produce PWM signals, so you can dim LEDs. It can be set to blink or even breathe pins at varying rates. In addition, with a built-in keypad engine, it can interface with up to 64 buttons set up in an 8 x 8 matrix.

Features

• Integrated LED Driver for Enhanced Lighting
• On-Chip Keypad Scanning Engine-Support Up to 8×8 Matrix (64 Keys)
• 1.2V to 3.6V Low Operating Voltage with Dual Independent I/O Rails (VCC1, VCC2)
• 5.5V Tolerant I/Os, Up to 15mA Output Sink on –All I/Os (No Total Sink Current Limit)
• 4/8/16 Channels of True Bi-directional Style I/O
  
• Ultra Low Current Consumption of typ. 1uA
• -40°C to +85°C Operating Temperature Range
• Built-in Clock Management (Internal 2MHz Oscillator/External Clock Input, 7 clock values)