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D-FT6236U-DataSheet-V1.0
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FT6236U
FocalTech Systems Co., Ltd · www.focaltech-systems.com · support@focaltech-systems.com
Self-Capacitive Touch
Panel Controller
INTRODUCTION
The FT6236U are single-chip capacitive touch panel controller IC with a built-in 16 bit enhanced Micro-controller unit (MCU).They
adopt the self-capacitance technology, which supports single point and gesture touch or two points. In conjunction with a
self-capacitive touch panel, The FT6236U implement the user-friendly input function and are widely used in various portable devices,
such as smart phones, MIDs ad GPS.
FEATURES
Self-Capacitive Sensing Techniques support single point
touch and gesture or two point touch
Absolute X and Y coordinates or gesture
1 point and gestures
High immunity to RF and power Interferences
Auto-calibration: Insensitive to Capacitance and Environ-
mental Variations
Built-in Enhanced MCU
FT6236U supports up to 28 channels of sensors /drivers
Report Rate: Up to 100Hz
Support Interfaces :I2C
Support single film material TP and triangle pattern without
additional shield
Internal accuracy ADC and smooth filters
Support 2.8V to 3.6V Operating Voltage
Support independent IOVCC
Built-in LDO for Digital Circuits
High efficient power management with 3 Operating Modes
Active Mode
Monitor Mode
Hibernation Mode
Operating Temperature Range: -40°C to +85°C
ESD:HBM≥7500V,MM≥500V
FT6236U
DATASHEET
FocalTech Systems Co., Ltd · www.focaltech-systems.com · support@focaltech-systems.com
\\
INTRODUCTION .......................................................................................................................................................... I
FEATURES..................................................................................................................................................................... I
1 OVERVIEW .......................................................................................................................................................... 1
1.1 TYPICAL APPLICATIONS ................................................................................................................................... 1
2 FUNCTIONAL DESCRIPTION.......................................................................................................................... 1
2.1 ARCHITECTURAL OVERVIEW............................................................................................................................ 1
2.2 MCU ................................................................................................................................................................ 2
2.3 OPERATION MODES .......................................................................................................................................... 2
2.4 SERIAL INTERFACE ........................................................................................................................................... 3
2.4.1 I2C ........................................................................................................................................................... 3
3 ELECTRICAL SPECIFICATIONS .................................................................................................................... 4
3.1 ABSOLUTE MAXIMUM RATINGS ....................................................................................................................... 4
3.2 DC CHARACTERISTICS ..................................................................................................................................... 4
*1: REPORT RATE: 75HZ @ 4”TP ................................................................................................................................ 5
3.3 AC CHARACTERISTICS ..................................................................................................................................... 5
3.4 I/O PORTS CIRCUITS ......................................................................................................................................... 6
3.5 POWER ON/RESET/WAKE SEQUENCE ............................................................................................................ 6
4 PIN CONFIGURATIONS .................................................................................................................................... 8
5 PACKAGE INFORMATION ............................................................................................................................ 10
5.1 PACKAGE INFORMATION OF QFN-5X5-40L PACKAGE ................................................................................... 10
TABLE OF CONTENTS
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.
Copyright © 2015, FocalTech Systems Co.,Ltd . All rights reserved Version 1.0
︱Page 1 of 10
1 OVERVIEW
1.1 Typical Applications
FT6236U 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
GPS
Game consoles
POS (Point of Sales) devices
Portable MP3 and MP4 media players
Digital cameras
MIDs
FT6236U series ICs support up to 4 inch Touch Panel; users may find out their target IC from the specs listed in the following table,
Model Name
Panel
Package
Touch Panel Size
Channel
Type
Pin
Size
FT6236U 28 QFN5*5 40 0.6-P0.4
≤4.0 inch
2 FUNCTIONAL DESCRIPTION
2.1 Architectural Overview
Figure2-1 shows the overall architecture for the FT6236U.
Enhanced MCU
48K Flash
AFECTRL
CGU
POR Power Regulator
35MHz low power
internal Oscillator
S
10bit
SAR ADC
LPF
I2C
Port0
Port1
PORT
Controller
High speed Digital processor
AFE
INTERFACE
EAC
Figure 2-1 FT6236U System Architecture Diagram
The FT6236U is comprised of five main functional parts listed below,
Touch Panel Interface Circuits
The main function for the AFE and AFE controller is to interface with the touch panel. It scans the panel by sending AC signals to the
panel and processes the received signals from the panel. So it supports both driver and Sensor functions. Key parameters to configure
this circuit can be sent via serial interfaces.
Enhanced MCU
For the Enhanced MCU, larger program and data memories are supported. Furthermore, A Flash ROM is implemented to store
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