TM1637 4-Digit 7-Segment Display – Specifications

Display Type

• 4-digit 7-segment LED display
• Typically red LED (other colors available depending on module)

Driver IC

• TM1637 LED driver and key-scan controller

Operating Voltage

• 3V to 5V DC (commonly used with 5V)

Interface

• 2-wire serial interface (CLK, DIO)

Current Consumption

• Low power, typically < 80 mA (depends on brightness level and LED color)

Brightness Levels

• 8 adjustable brightness levels

Microcontroller Compatibility

• Compatible with Arduino, ESP8266, ESP32, Raspberry Pi, STM32, and most microcontrollers

Digit Format

• 4 digits, each with 7 segments + decimal point

Refresh Rate

• Controlled by TM1637 driver (flicker-free display)

Module Size

• Typical size: 42 mm × 24 mm × 12 mm (varies by manufacturer)

Mounting

• PCB with mounting holes (commonly 2 holes)

Applications

• Timers
• Clocks
• Counters
• Temperature displays
• Voltage or sensor readings