These displays were used in old Nokia 5110/3310 cell phones. It's a 84x48 pixel monochrome LCD display. These displays are small, only about 1.5" diagonal, but very readable and come with a white backlight. This display is made of 84x48 individual pixels, so you can use it for graphics, text or bitmaps.
To drive the display, you will need 3 to 5 digital output pins (depending on whether you want to manually control the chip select and reset lines). Another pin can be used to control (via on/off or PWM) the backlight - the backlight LEDs are wired to a transistor.
The display driver is a PCD8544 chip, and it runs at 3.3V so you'll need a 3V supply handy (you don't need that much current though, maybe 10mA tops). Logic levels must be 3V to prevent damage but we include a free level shifter chip so you can easily connect it to 5V logic such as an Arduino.
To make it easy for you to use the display, a graphics library that can print text, pixels, rectangles, circles and lines is available! The library is written for the Arduino but can easily be ported to your favorite microcontroller.
- Board size is 1.94"x1.66"x0.25"
Nokia 5110/3310 Monochrome LCD Screen 
- Brand: Adafruit
- Product Code: ADA-338
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- Availability: Out Of Stock
- Ex Tax: £11.77
- Price in reward points: 200