For a full datasheet of the most common 16x1 variant, you can refer to the Phico D-0 94V-0 LCD Display Datasheet hosted on Scribd. Technical Specifications (Common Variant: DV-16100)
Operating these legacy displays in a modern context requires careful attention to the contrast voltage. While the logic typically runs at 5V, the contrast pin often requires a variable voltage between 0V and 5V, usually managed via a 10k-ohm potentiometer. Without this precise adjustment, the display will either appear entirely blank or show solid "blocks" in the character cells, leading many hobbyists to believe the unit is defective when it is simply misconfigured. phico d0 94v0 lcd display datasheet pdf