FT800Q-T

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1. Feature

    1. FT800 features include graphics controller, audio processing and resistive touch controller.

    2. Embedded Video Engine (EVE) with widget support to offload the system MPU and provide various graphics capabilities

    3. Built-in graphics operations allow users without specialized knowledge to create high-quality displays

    4. Integration with 4-wire touchscreen controller with median filtering and touch force sensing. 

        - The hardware engine can recognize touch tags and track touch motion. 

        - It provides notifications for up to 255 touch tabs.

    5. Standard serial interface for host MPU/MCU, SPI up to 30MHz or I²C clock up to 3.4MHz

    6. Programmable interrupt controller provides interrupts to host MPU/MCU

    7. Built-in 12MHz crystal oscillator with PLL, providing 48MHz or 36MHz system clock

    8. Video RGB parallel output with 2-bit dithering (default RGB data width 6-6-6); 

        - configurable to support resolutions up to 512x512 and LCD R/G/B data widths from 1 to 6

    9. Programmable timing to adjust HSYNC and VSYNC timing to connect multiple monitors

  10. Supports LCD displays in WQVGA (480x272) and QVGA (320x240) formats, with data enable (DE) support mode and VSYNC/HSYNC mode

  11. Although only 6-bit (RGB-6,6,6) pins are available, the FT800 computes 8-bit color; this improves halftone appearance

  12. Display enable control output to LCD panel

  13. Mono audio channel output with PWM output

  14. 64-voice polyphonic synthesizer

  15. Plays audio waves in mono 8-bit linear PCM, 4-bit ADPCM and µ-Law encoding formats at sampling frequencies from 8 kHz to 48 kHz. 

        - Built-in digital filter reduces system design complexity with external filtering

  16. PWM output for LED backlight dimming control

  17. Low power consumption for portable applications, 24mA active (typical) and 10-25 uA sleep (typical)

  18. No framebuffer RAM required

  19. Advanced object-oriented architecture supports low-cost MPU/MCU using I2C and SPI interface as system host

  20. Power mode control allows the chip to enter power-down, sleep and standby states

  21. Supports host interface I/O voltages from 1.8V to 3.3V

  22. Internal regulator provides 1.2V to digital core

  23. -40°C to 85°C extended operating temperature range

  24. Available in a compact lead-free, VQFN-48, 7mm X 7mm X 0.9mm package, RoHS compliant

2. Application

    1. Point-of-sale machines

    2. Multifunction printer

    3. Meter

    4. Home security system

    5. Graphical touchpad - remote control, dial pad

    6. Telephone/video conferencing system

    7. Telephone and switchboard

    8. Medical Devices

    9. Blood pressure display

  10. Heart monitor

  11. Blood sugar level display

  12. Ventilator

  13. Gas Chromatograph

  14. Power meter

  15. Electrical

  16. STB

  17. Thermostat

  18. Display of sprinkler system

  19. Medical Devices

  20. GPS/Satellite Navigation

  21. Vending machine control panel

  22. Elevator control

3. Pin configuration

4. Function Description

    1. Serial host interface

    2. System clock

    3. Graphics engine

    4. Parallel RGB video interface

    5. Audio engine

    6. Touch Engine

    7. Power management

5. Clock frequency

After power-up, the internal relaxation oscillator is not trimmed. The chip-to-chip frequency range can be wide. If the application uses an internal clock without an external clock source, clock trimming is recommended in the following ways software for better performance. When the input clock is 12MHz, the system clock defaults to 48MHz. Allows the host to switch the system through the host command "CLK48MHz" and "CLK36MHz" to control the clock between 48MHz and 36MHz, respectively. This clock switch runs synchronously with the VSYNC edge. This is to avoid switching clocks. Therefore, clock switching will only take effect when REG_PCLK is non-zero.