The TM1668 SMD SOIC24 LED Driver IC Chip is a high-performance LED display driver and keypad scanning controller from Titan Micro Electronics. It integrates an MCU serial interface, data latch, LED driver, and keyboard scanning functions into a single IC, minimizing external components and simplifying circuit design. The device supports multiple LED display configurations, 8-level PWM brightness control, and a 3-wire serial communication interface (CLK, STB, DIO). It is widely used in induction cookers, microwave ovens, washing machines, air conditioners, set-top boxes, electronic weighing scales, smart meters, and other digital display applications. Key Specifications • Part Number: TM1668 • IC Type: LED Display & Keypad Driver • Package: SOIC-24 / SOP-24 SMD • Mounting Type: Surface Mount • Supply Voltage: 4.5V to 5.5V • Display Modes: 10×7 to 13×4 (Segments × Digits) • Serial Interface: CLK, STB, DIO • Key Scan: 10 × 2 Matrix • Brightness Control: 8-Level PWM Dimming • Oscillator: Built-in RC Oscillator • Reset: Built-in Power-On Reset • Segment Drive Current: 20mA • Digit Drive Current: 80mA • Clock Frequency: Up to 1MHz • Operating Temperature: -40°C to +80°C • Power Dissipation: 400mW • Technology: CMOS • RoHS Compliant: Yes • Applications: LED Displays, Home Appliances, Industrial Control Panels, Consumer Electronics, Digital Meters, Induction Cookers, Microwave Ovens, Set-Top Boxes, Electronic Weighing Scales.