【16-Bit I/O Expansion Module】 16-bit bidirectional ports; I²C/SMBus compatible; supports standard (100kHz) and fast (400kHz) modes; Suitable for microcontroller extension
【Low Power Design】 Less than 3.5µA standby current; 2000mAh battery life; 1.8µA sleep mode; suitable for portable and low-power applications
【Interrupt-Driven Response】 Open-drain INT pin triggers on input change; reduces MCU polling overhead; supports real-time status monitoring
【Flexible Address Configuration】 Three hardware address pins (A0/A1/A2); supports up to 8 devices in parallel; easy to integrate into multi-device systems
【Plug-and-Play Compatibility】 Built-in pull-up resistors; 5V-tolerant I/O ports; compatible with for for Arduino , for for Raspberry Pi, STM32; no external components required