LightKey Datasheet of 1.20 inch 5x7 Dot Matrix LE.
LM12057BUR - 1.20 inch 5x7 Dot Matrix LED Display
LightKey Datasheet of 1.20 inch 5x7 Dot Matrix LED Display LM12057A/B Series – 1.20 inch 5x7 Dot Matrix LED Display ATTENTION OBSERVE PRECAUTIONS F.