I like to know if it is possible to use 16F676 internal 4MHz osc with a LCD. I am asking this cause I tried the 16F88 internal 4MHz during the voltmeter code and the LCD and everything came to freakin halt. The display was like waaaay slow in changing the welcome screen to VA display mode. I thought it was due to halving the osc frequency. I never tried this so I am asking for advice. This project is to make a separate ADC read out display for the easypic as I would like to see the ADC value sometimes when the circuit is working and also during real testing times. And I have a salvaged 16 X 2 LCD from the junk which works The circuit will have 4 A2D inputs and LCD will have the 4 ADC read outs in 10bit. I know I can change the 16F88 code to suite the F676. But I need to use the osc pins as I/O to drive the LCD if I were to use 4 A2D. With 3 A2D I can use HS osc. But I want 4 A2D. Is it possible to drive the LCD with internal osc. The circuit won't do any thing else but read ADC and display. This will be useful for testing purposes.