Microchip Technology AC164127-3 データシート

Microchip Human Interface Solutions

The Microchip Graphics Display 

Designer (GDD) is a visual 

design tool that provides 

customers with a quick and 

easy way of creating Graphical 

User Interface (GUI) screens for 

graphical interface applications 

on Microchip MCUs.

It provides the following advantages to the developers:

   

■

Simplifi es coding for the GUI screens with an ability to 

draw, resize and delete screen objects

   

■

Eliminates the need to manually calculate the x- and y- 

coordinates for on-screen object placements

   

■

Generates output source fi les

   

■

Ability to import various graphical resources, including 

custom fonts and bitmap images

Microchip graphics solutions support various screen sizes 

and colors ranging from small monochrome OLED displays 

up to WVGA displays with vivid color. The table below 

shows the bits per pixel required to represent color.

Mono

Black and White

1

Grayscale

4 shades

16 shades

2

4

Color

256 colors

65K colors

16 million colors

8

16

24

As the color depth and display resolution increase, the 

frame buffer grows. Depending on the size, the frame 

buffer can be stored in the microcontroller RAM, in external 

SRAM or integrated into an external graphics controller. 

The table below shows examples of the frame buffer sizes 

required for some popular resolution and color depths.

   

■

PIC24 “DA” family supports up to 96 KB on chip 

   

■

PIC32 MCUs support up to 128 KB on chip 

   

■

External SRAM can be used for larger frame buffers

   

■

For advanced graphics, external graphics controllers 

have additional frame buffer storage

 

Microchip offers varying levels of solutions to drive 

everything from simple monochrome LCDs to full color 

WVGA user interfaces.
Graphics support includes the following approaches:

   

■

PIC24F “DA” integrated graphics controller

   

■

PIC32 controllerless graphics

   

■

Support for PIC MCU with external graphics controllers

The silicon offering is complemented with powerful, free 

and easy to use graphics library, display designer GUI 

and hardware development kits with flexible interface to 

various glass sizes.

The Microchip Graphics 

Library is highly modular 

and is optimized for 

Microchip’s 16- and 32-bit 

microcontrollers. It is easy 

to use and has an open 

documented interface for driver or controller support. The 

library supports the following features:

   

■

Pre-made graphics objects

   

■

Multiple fonts and languages

   

■

User interface for mTouch™ sensing

   

■

Includes buttons, charts, check boxes, scroll bars, list 

boxes, images and basic animation

1 bpp

(Mono)

2 bpp

(4 shades)

4 bpp

(16 shades)

8 bpp

(256 colors)

16 bpp

(65K colors)

WVGA

800 × 480

7"

48,000

96,000

192,000

384,000

768,000

VGA

640 × 480

5.7"

38,400 

76,800 

153,600 

307,200 

614,400 

WQVGA 

480 × 272 

4.3"

16,320

32,640 

65,280 

130,560 

261,120 

QVGA 

320 × 240 

3.2"

9,600 

19,200 

38,400 

76,800 

153,600 

Common for OLED

128 × 64 

1" –2.7"

1,024 

2,048 

4,096 

8,192 

16,384 

  Internal PIC® MCU SRAM   

  External SRAM