A range of alphanumeric LCDs, which are all supertwist (Except Order Code N24AZ, which is TN). The LCDs use the industry standard 4 or 8 bit parallel interface using the HD44780 and HD44100 (or OKI/Samsung equivalent) driver chip protocols. All LCDs have black characters on a green/yellow background, except for Order Code N25AZ, which has black characters on a grey background.