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The SparkFun Large Digit Driver is a chainable controller board that solders directly to the back of 6.5" 7-segment LED displays. It uses the TPIC6C596 shift register IC to drive individual segments, making it easy to build multi-digit scoreboards, lap timers, and large-format numerical displays visible from a distance.

The board attaches via 10 castellated pads at the bottom and 2 at the top. It requires dual power: 12V for the LED segments and 5V for the driver IC. Six input and six output pins (GND, LAT, CLK, SER, 5V, 12V) enable daisy-chaining multiple drivers together for multi-digit displays.

Key Features

  • Chainable Design – Daisy-chain multiple drivers for multi-digit displays
  • Direct Mount – Solders to the back of 6.5" 7-segment displays via castellated pads
  • TPIC6C596 Driver – Shift register IC for serial segment control
  • Dual Power Input – 12V for LEDs, 5V for driver IC
  • 6-Pin I/O – GND, LAT, CLK, SER, 5V, 12V on both input and output

Specifications

  • Driver IC – TPIC6C596
  • IC Supply Voltage – 5V
  • LED Supply Voltage – 12V
  • Interface – Serial (Clock, Latch, Data)
  • Mounting – Castellated through-hole pads

Ideal For

  • Scoreboards and sports timers
  • Lap counters and race displays
  • Large-format clocks and countdown timers
  • Any project needing digits visible from a distance

Package Contents

  • 1× SparkFun Large Digit Driver Board

Resources

The SparkFun Large Digit Driver appears in the following collections:

SKU SF-WIG-13279