The TM1637 is a dedicated LED display driver and keypad scanning IC designed for driving up to 6-digit 7-segment common-anode LED displays while simultaneously scanning a 16-key matrix keyboard using only a 2-wire serial interface (CLK & DIO). It is widely used in digital clocks, induction cookers, microwave ovens, weighing scales, thermostats, and other home appliances.
Key Features
• Package: SOIC/SOP-20
• Drives 6-digit × 8-segment common-anode LED displays
• Supports 8 × 2 (16-key) keyboard scanning
• 2-wire serial interface (CLK, DIO)
• 8-level brightness control
• Built-in RC oscillator
• Built-in Power-On Reset (POR)
• Automatic display blanking
• Operating voltage: 4.5V to 5.5V
• Operating temperature: −40°C to +85°C
Applications
• Digital clocks
• Microwave ovens
• Induction cookers
• Rice cookers
• Home appliance control panels
• Timer displays
• Electronic weighing scales
• Industrial display modules
Package
• SOIC/SOP-20
Interface
• CLK – Serial Clock
• DIO – Serial Data
Display Configuration
• 6 Digits × 8 Segments
• Common Anode LED Display
