Skip to main content

We use cookies to understand how you use our site and improve your experience. See our Privacy Policy.

FT5X16

Capacitive Touch Panel Controller

The FT5X16 is a capacitive touch panel controller from FocalTech Systems Co.,LTD.. View the full FT5X16 datasheet below including key specifications, electrical characteristics, absolute maximum ratings.

FT5X16 shares its datasheet with FT5316, whose page lists every part number it covers.

Official FT5X16 datasheet (PDF) — the source this page was extracted from.

Manufacturer

FocalTech Systems Co.,LTD.

Category

Integrated Circuits

FT5X16 Key Specifications

ParameterValue
Data Memory4KB SRAM
Report Rate>100Hz
Master Clock24MHz
Touch PointsUp to 5 multi-touch
ADC Resolution12-bit
Host InterfaceI2C (up to 400kHz) / SPI
Program Memory32KB Flash
FT5216 Channels16 TX + 10 RX
FT5316 Channels21 TX + 12 RX
Operating ModesActive, Monitor, Hibernate
Touch Panel Size<5.0 inch
Storage Temperature-55°C to +150°C
Operating Temperature-20°C to +85°C
Max Channel Resistance10kΩ
Max Channel Capacitance60pF
IO Supply Voltage (IOVCC)1.8V to 3.6V
Optimal Mutual Capacitance1pF to 4pF
Supply Voltage (VDDA/VDD3)2.8V to 3.6V

FT5X16 Overview

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

FT5X16 Features

  • 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 Applications

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,

Model NamePanelPanelPackagePackagePackageTouch Panel SizeRecommended
Model NameTXRXTypePinSizeTouch Panel SizeRecommended
FT5216GM71610QFN5*5400.75-P0.4<3.6"~5mm
FT5316DME2112QFN6*6480.75-P0.43.7" ~ 5.0"~5mm

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

FT5X16 Pin Configuration

Pin List of FT5x16

Table 4-1 Pin Definition of FT5x16

NamePin No.Pin No.TypeDescription
NameFT5216GM7FT5316DMETypeDescription
VSSA11PWRAnalog ground
TX122OTransmit output pin
TX233OTransmit output pin
TX344OTransmit output pin
TX455OTransmit output pin
TX556OTransmit output pin
TX677OTransmit output pin
TX788OTransmit output pin
TX899OTransmit output pin
TX91010OTransmit output pin
TX101111OTransmit output pin
TX111212OTransmit output pin
TX121313OTransmit output pin
TX131414OTransmit output pin
TX141515OTransmit output pin
TX151616OTransmit output pin
TX161717OTransmit output pin
TX1718OTransmit output pin
TX1819OTransmit output pin
TX1920OTransmit output pin
TX2021OTransmit output pin
TX2222OTransmit output pin
VDD51823PWRinternal generated 5V power supply , A 1 μ F ceramic capacitor to ground is required.
VDD31924PWRAnalog power supply
VSS2025PWRAnalog ground
VSSD2126PWRDigital ground
VDDD2227PWRDigital power supply , generated internal. A 1 μ F ce- ramic capacitor to ground is required.
RST2328IExternal Reset, active low
GPIO729I/OGeneral Purpose Input/Output port
GPIO6/ Wake2430I/OInterrupt request to the host / Wakeup request from the host
MISO2531I/OSPI Slave mode, data output
MOSI2632I/OSPI Slave mode, data input
SDA/SCK2733I/OI2C data input and output / SPI Slave mode, clock input

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.

Table 4-1 Pin Definition of FT5x16

SCL/SSEL2834I/OI2C clock input / SPI Slave mode, chip select, active low
IOVCC2935PWRI/O power supply
VDDA3036PWRAnalog power supply
RX13137IReceiver input pins
RX23238IReceiver input pins
RX33339IReceiver input pins
RX43440IReceiver input pins
RX53541IReceiver input pins
RX63642IReceiver input pins
RX73743IReceiver input pins
RX83844IReceiver input pins
RX93945IReceiver input pins
RX104046IReceiver input pins
RX1147IReceiver input pins
RX1248IReceiver input pins

FT5216GM7 Package Diagram

FT5216GM7 Package Diagram

FT5X16 Electrical Characteristics

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

ItemSymbolUnitTest ConditionMin.Typ.Max.Note
Input high-level voltageVIHV0.7 x IOVCC--IOVCC
Input low -level voltageVILV-0.3--0.3 x IOVCC
Output high -level voltageVOHVIOH=-0.1mA0.7 x IOVCC----
Output low -level voltageVOLVIOH=0.1mA----0.3 x IOVCC
I/O leakage currentILIμ AVin=0~VDDA-1--1
Current consumption ( Normal operation mode )IoprmAVDDA=VDD3 = 2.8V Ta=25 °C MCLK=24MHz--TBD--
Current consumption ( Monitor mode )ImonmAVDDA=VDD3 = 2.8V Ta=25 °C MCLK=24MHz--TBD--
Current consumption ( Sleep mode )IslpmAVDDA=VDD3 = 2.8V Ta=25 °C MCLK=24MHz--TBD--
Step-up output voltageVDD5VVDDA=VDD3= 2.8V4.555.21
Power Supply voltageVDDA VDD3V2.8--3.6

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

FT5X16 Absolute Maximum Ratings

Table 3-1 Absolute Maximum Ratings

ItemSymbolUnitValueNote
Power Supply Voltage 1VDDA - VSSAV-0.3 ~ +3.61, 2
Power Supply Voltage 2VDD3 - VSSV-0.3 ~ +3.61, 3
I/O Digital VoltageIOVCCV1.8~3.61
Operating TemperatureTopr°C-20 ~ +851
Storage TemperatureTstg°C-55 ~ +1501

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 Typical Application

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,

Model NamePanelPanelPackagePackagePackageTouch Panel SizeRecommended
Model NameTXRXTypePinSizeTouch Panel SizeRecommended
FT5216GM71610QFN5*5400.75-P0.4<3.6"~5mm
FT5316DME2112QFN6*6480.75-P0.43.7" ~ 5.0"~5mm

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

FT5X16 Package Information

ItemSymbolMillimeterMillimeterMillimeter
SymbolMinTypMax
Total ThicknessA0.50.550.6
Stand OffA100.0350.05
Mold ThicknessA2----0.40.425
L/F ThicknessA30.152 REF0.152 REF0.152 REF
Lead Widthb0.150.200.25
Body SizeD5 BSC5 BSC5 BSC
E5 BSC5 BSC5 BSC
Lead Pitche0.4 BSC0.4 BSC0.4 BSC
EP SizeJ3.33.43.5
K3.33.43.5
Lead LengthL0.350.40.45
S1.151.251.35
Package Edge Toleranceaaa0.10.10.1
Mold Flatnessbbb0.10.10.1
Co Planarityccc0.080.080.08
Lead Offsetddd0.10.10.1
Exposed Pad Offseteee0.10.10.1

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.

Variants on the same datasheet

These parts have exact links to the same datasheet. They are candidates to compare, not verified drop-in replacements; check package, pinout and electrical limits.

Part NumberManufacturerPackage
FT5216FocalTech Systems Co.,LTD.QFN-40 5x5mm
FT5316FocalTech Systems Co.,LTD.QFN-48 6x6mm
FT5316DEEFocalTech Systems Co.,LTD.QFN-48
FT5316DMEFocalTech Systems Co.,LTD.QFN6*6

Other Integrated Circuits

All Integrated Circuits datasheetsAll FocalTech Systems datasheets (5)

Data on this page is extracted from publicly available manufacturer datasheets using automated tools including AI. It may contain errors or omissions. Always verify specifications against the official manufacturer datasheet before making design or purchasing decisions. See our Terms of Service. Rights holders can submit a takedown request.

Ask your AI agent about the FT5X16

Connect SheetsData to Claude, Cursor, Codex or any MCP client and your agent reads this datasheet for you: pinout, limits, register maps and design checks, with the numbers taken from the PDF.

claude mcp add --transport http sheetsdata https://mcp.sheetsdata.com/mcp

Then ask: "Can the FT5X16 run from my 12 V rail? Check it against the datasheet limits."

Create a free account $2 of usage every month, no card needed.