Part: FT5x16 Series — FocalTech Systems Co.,LTD.

Type: Capacitive Touch Panel Controller IC

Description: Single-chip capacitive touch panel controller ICs with a built-in MCU, supporting mutual capacitance sensing for true multi-touch (up to 5 points) with I2C/SPI interfaces and 2.8V to 3.6V operating voltage.

Operating Conditions:

• Supply voltage: 2.8V to 3.6V
• Operating temperature: -20°C to +85°C
• IOVCC supply voltage: 1.8V to 3.6V

Absolute Maximum Ratings:

Key Specs:

• Multi-touch capability: Up to 5 points
• FT5216 TX/RX lines: Up to 16 TX + 10 RX
• FT5316 TX/RX lines: Up to 21 TX + 12 RX
• Report rate: More than 100Hz
• ADC accuracy: 12-Bit
• Program Memory: 32KB Flash
• Data Memory: 4KB SRAM
• I2C SCL frequency: 0 to 400 KHz
• SPI data transfer: 8-bit packets

Features:

• Mutual Capacitive Sensing Techniques
• Auto-calibration
• Full Programmable Scan Sequences
• Optional Interfaces: I2C/SPI
• Built-in Enhanced MCU with DSP accelerator
• 3 Operating Modes: Active, Monitor, Hibernate
• Watch dog timer
• Voltage regulator for 1.8V digital circuits
• Power On Reset (POR)

Applications:

• Mobile phones, smart phones
• MIDs
• Navigation systems, GPS
• Game consoles
• POS (Point of Sales) devices
• Portable MP3 and MP4 media players
• Digital cameras

Package:

• QFN-5x5-40L
• QFN-6x6-48L

• Mutual Capacitive Sensing Techniques
• True Multi-touch with up to 5 Points of Absolution X and Y Coordinates
• Immune to RF Interferences
• Auto-calibration: Insensitive to Capacitance and Environmental Variations
• FT5216 supports up to 16 TX lines + 10 RX lines
• FT5316 supports up to 21 TX lines + 12 RX lines
• Full Programmable Scan Sequences to Support Various TX/RX Configurations
• High Report Rate: More than 100Hz
• Touch Resolution of 100 Dots per Inch (dpi) or above -depending on the Panel Size
• Optional Interfaces :I2C/SPI
• 2.8V to 3.6V Operating Voltage
• IOVCC Connected to External or Internal 1.8V to 3.6V Voltage Supply for Digital IO Circuits
• Capable of Driving Single Channel (transmit/receive) Resistance: Up to10K Ω
• Capable of Supporting Single Channel (transmit/receive) Capacitance: 60 pF
• Optimal Sensing Mutual Capacitor: 1pF~4pF
• 12-Bit ADC Accuracy
• Built-in Enhanced MCU
• 3 Operating Modes
• Active
• Monitor
• Hibernate
• Operating Temperature Range: -20°C to +85°C

FT5x16 accommodate a wide range of applications with a set of buttons up to a 2D touch sensing device, their typical applications are listed below.

• Mobile phones, smart phones
• MIDs
• Navigation systems, GPS
• Game consoles
• POS (Point of Sales) devices
• Portable MP3 and MP4 media players
• Digital cameras

FT5x16 Series ICs support < 5.0' Touch Panel, users may find out their target IC from the specs. listed in the following table,

Remarks: FocalTech suggests to use pitch between 4.0mm to 6.0mm; The customer can decide the pitch based on applications.

FT5316DEE Pinout — QFN-48

Notes

• FT5316DEE variant: This pinout is extracted from the FT5316DME column in Table 4-1, which matches the FT5316DEE package variant (QFN-48). The FT5216GM7 variant shown in the package diagram is a different package (BGA) and has fewer pins.
• TX22 numbering: The table lists "TX22" at pin 22; TX21 is not present in the datasheet.
• Power supply decoupling: VDD5 (pin 23) and VDDD (pin 27) each require 1 μF ceramic capacitors to ground.
• GPIO6/Wake: Pin 30 serves dual function as interrupt request output or wakeup input depending on configuration.

Table 3-2 DC Characteristics (VDDA=VDD3=2.83.6V, Ta=-20 85°C )

1.If VDDA and VDD3 are 3.3V, the max value of VDD5 is 6V.

Table 3-1 Absolute Maximum Ratings

Notes

1.If used beyond the absolute maximum ratings, FT5x16 may be permanently damaged. It is strongly recommended that the device be used within the electrical characteristics in normal operations. If exposed to the condition not within the electrical characteristics, it may affect the reliability of the device.

2.Make sure VDDA(high) ≥ VSSA (low)

3.Make sure VDD (high) ≥ VSS (low)

FT5x16 accommodate a wide range of applications with a set of buttons up to a 2D touch sensing device, their typical applications are listed below.

• Mobile phones, smart phones
• MIDs
• Navigation systems, GPS
• Game consoles
• POS (Point of Sales) devices
• Portable MP3 and MP4 media players
• Digital cameras

FT5x16 Series ICs support < 5.0' Touch Panel, users may find out their target IC from the specs. listed in the following table,

Remarks: FocalTech suggests to use pitch between 4.0mm to 6.0mm; The customer can decide the pitch based on applications.

THIS DOCUMENT CONTAINS INFORMATION PROPRIETARY TO FOCALTECH SYSTEMS CO.,LTD., AND MAY NOT BE REPRODUCED, DISCLOSED OR USED IN WHOLE OR PART WITHOUT THE EXPRESS WRITTEN PERMISSION OF FOCALTECH SYSTEMS CO.,LTD.