Your processor will not support an 8 bit or 4 bit parallel interface for your alphanumeric display. You are left with the option of a serial interface or SPI interface. In the past, serial was not a desirable option.
Why?
- The serial interface LCD module required additional electronics that increased the cost of a 16×2 LCD display or 20×2 LCD Display by as much as $10 per LCD.
- The lead time of the Character display was longer.
- The MOQ on the Character LCD module was high.
This changes everything: Times have changed. Monochrome LCD displays are now available with the Sitronix ST7070.
The cost difference? Much less cost then the $10 per LCD display in the past. The cost increase is about the same as upgrading your LCD module from a TN to a FSTN.
Is there a tooling (NRE) fee? Smaller Character displays such as an 8 line by 2 rows, or an 8 line by 1 row may require a modified PCB to accept the new controller IC. The tooling cost is less than a custom LCD module that requires a bezel to be modified.
Focus Display Solutions offers the character module with the serial interface. Whether you need a 16×2, 16×1, 8×2 or 8×1 LCD module, we offer our LCD modules with the Sitronix IC.
You can find our selection of monochrome character LCD’s at FocusLCD.com.
Need a quote or sample? …Call us.
