DMC TSC-55/U-L User manual

Analog Resistive Touch Screen Controller
TSC-55/U-L User’s Guide

Document No. DER-S0187A 1 Rev.2.0 ©2021 DMC Co., Ltd.
TSC-55/U-L User’s Guide
Table of Contents
1. Product Overview.................................................................................................................... 2
1.1. Products Applicable............................................................................................................................2
1.2. Overview ............................................................................................................................................2
1.3. Peripheral Composition Overview ......................................................................................................3
2. Specifications..........................................................................................................................4
3. Connector................................................................................................................................. 5
3.1. Explanation of a connector terminal...................................................................................................5
3.2. The mounted connector......................................................................................................................5
4. Packing Specification ............................................................................................................. 6
4.1. Outline................................................................................................................................................6
4.2. Packing material.................................................................................................................................6
4.3. Outer case and lot label......................................................................................................................6
4.4. Product name label ............................................................................................................................7
5. Changes & Improvements......................................................................................................8
5.1. Version History...................................................................................................................................8
6. Warranty...................................................................................................................................9
6.1. Warranty Period .................................................................................................................................9
6.2. Warranty Target .................................................................................................................................9
6.3. Warranty Exceptions ..........................................................................................................................9
7. Precautions for Use ..............................................................................................................10
7.1. General Handling .............................................................................................................................10
7.2. Others...............................................................................................................................................10
Dimensional Drawing

Document No. DER-S0187A 2 Rev.2.0 ©2021 DMC Co., Ltd.
TSC-55/U-L User’s Guide
1. Product Overview
1.1. Products Applicable
This specification is applicable to TSC-55/U-L.
1.2. Overview
TSC-55/U-L is 5 wire touch screen controller board that performs an A/D conversion of an analog signal of
a 5 wire resistive touch screen, and transmits the coordinate data to the host in a 10-bit resolution at USB.
TSC-55/U-L can be used for various applications for its functions including the power saving mode, seven
sampling speed settings (max. 150p/s *1), two external switch connections.
§ TSC-55/U-L TSC-55/U-L dispenses a need to newly design the peripheral circuits, and can easily
be used by connecting to the touch screen and the host. Using the driver software *2
enables the mouse emulation on various operation systems and dispenses the need
to newly design the controller software.
TSC-55/U-L is the product compatible with software of the TSC-30 series.
*1: 150 transmissions of coordinate data per second.
*2: Please contact the local sales representatives for software availability.
TSC-55/U-L is a succeeding model of the boards of the TSC-35/U-L. TSC-55/U-L is lead-free and compliant
with RoHS.

Document No. DER-S0187A 3 Rev.2.0 ©2021 DMC Co., Ltd.
TSC-55/U-L User’s Guide
1.3. Peripheral Composition Overview
5 wire resistive touch screen is operated by resistance sensitive system between two layers such as film or
glass. Two pieces of transparent materials with conductive coating are placed in the same direction as
two electrodes face each other. The 5 wire touch screen is activated when these transparent conductive
layers are pressed to contact each other with a finger or a pen. The one of these conductive layers func-
tions as an X/Y-coordinates electric circuits and the other as a detection circuits.
To measure the X-coordinates, TSC-55/U-L makes two corners Vcc among four corners. And makes others
GND. When the touch screen is pressed under this environment the voltage of the X-coordinates resistance
is detected by the detection layer (A_in) at the input point (x1), where the X-Y coordinate resistance layers
make contact. The detected voltage in supply side is higher than the GND side, which means ‘A_in’=Vcc
at the point ‘E’and ‘A_in’=0(*1) at the point ‘A’. TSC-55/U-L calculates coordinates data starting from A/D
conversion of the ‘A_in’voltage. The Y-coordinates is measured in the same way. By repeating this
process alternately, coordinate value at the input point is determined.
(*1) Excluding the loss in the controller circuits and touch screen. Actual detected voltage should be lower
than ‘Vcc - GND’because of loss happened in the circuitry.
xl
A_in
Output Data
A
0V
0000h (Min.)
B
1.25V
00FFh
C
2.5V
01FFh
D
3.75V
02FFh
E
5V
03FFh (Max.)
Vcc = 5.0V
T
o
u
c
h
5V
E
D
C
B
A
(Drive layer)
E
(Detection layer)
A_in
A_in
(TSC-50/IC)
(TSC-55/U-L)
USB
To host
xl
Detection layer
Touch
(Touch Screen)
Drive layer
E
D
C
B
A
Vcc

Document No. DER-S0187A 4 Rev.2.0 ©2021 DMC Co., Ltd.
TSC-55/U-L User’s Guide
2. Specifications
General Specifications
Item
Rating
Remarks
Operating Temp.
-40°C to +80°C
No dew condensation
Storing Temp.
-40°C to +85°C
No dew condensation
Supply Voltage
DC 3.0V to 5.5V
Consumption Current
80mA
150pps, Vin=Vbus,
at touch input
Correspondence
Spec
USB Specification 2.0 Full Speed
Transfer Mode
Control transfer (command)
Interrupt transfer (coordinate)
Device class
Vendor definition
Frequency
16MHz
16MHz fixed
Dimension
30 x 53 mm
Max height of components
4.8 mm
Performance Specifications
Description
Rating
Note
Coordinate Output Rate (point/sec)
(1) point mode
(2) 30p/s (3) 50p/s
(4) 80p/s (5) 100p/s
(6) 130p/s (7) 150p/s
Default: 150pps with DMC original
driver software.
Coordinate Resolution
10bit (1024 x 1024)
The value will be lower in the active
area of the touch screen
Linearity Error
3 LSB
Input Response Time
10ms (TYP)

Document No. DER-S0187A 5 Rev.2.0 ©2021 DMC Co., Ltd.
TSC-55/U-L User’s Guide
3. Connector
3.1. Explanation of a connector terminal
CN
Terminal
Name
Function
CN1
1
UR
5 wire Touch screen UR Input
2
LR
5 wire Touch screen LR Input
3
Sense
Coordinate detection
4
UL
5 wire Touch screen UL Input
5
LL
5 wire Touch screen LL Input
CN4
1
Vbus
USB Vbus
2
D-
USB D-
3
D+
USB D+
4
GND
USB GND
5
Shield
USB FG
3.2. The mounted connector
CN
P/N
Manufacturer
CN1
RE-H052SD-1110
J.S.T. Mfg Co., Ltd
CN4
S5B-PH-K-S
J.S.T. Mfg Co., Ltd

Document No. DER-S0187A 6 Rev.2.0 ©2021 DMC Co., Ltd.
TSC-55/U-L User’s Guide
4. Packing Specification
4.1. Outline
TSC-55/U-L is wrapped up in the air packing of the prevention of static protection type and puts it in a
packing box.
4.2. Packing material
Outer case: 75 x 55 x 15 mm, clay coated newsback board
Cushioning: 120 x 70 mm, air packing, static protection
4.3. Outer case and lot label
T S C - 55/U- L
Lot number
Product name, DMC logo
3I09
Sample: 3I09
3: the last digits of the year
I: Month Jan : A Jul : G
Feb : B Aug : H
Mar : C Sep : I
Apr : D Oct : J
May : E Nov : K
Jun : F Dec : L
09: Date manufactured

Document No. DER-S0187A 7 Rev.2.0 ©2021 DMC Co., Ltd.
TSC-55/U-L User’s Guide
4.4. Product name label
Backside of board
TSC-55/U-L: Product name
Lot#: 3I09S0100001
Definitions of the lot number
①3I09
3: the last digits of the year
I: Month Jan : A Jul : G
Feb : B Aug : H
Mar : C Sep : I
Apr : D Oct : J
May : E Nov : K
Jun : F Dec : L
09: Date manufactured
②S01: Control number for DMC use
③00001: Serial number (5 digits)
Rev: Revision information
(PbFree): lead free
Data Matrix: lot number [3I09S0100001] can be
read with a barcode reader. (Product name and
revision information are not included.)
TSC-55/U-L Rev.A
Screw Hole

Document No. DER-S0187A 8 Rev.2.0 ©2021 DMC Co., Ltd.
TSC-55/U-L User’s Guide
5. Changes & Improvements
5.1. Version History
§ TSC-55/U-L
Ver 0.1 (November 20, 2015)
Draft release
Ver1.0 (March 31, 2016)
First edition release
2. Specifications Consumption Current is described in General Specifications.
Ver1.1 (May 9, 2016)
4.4. Product Name Label: Label contents changes (applied from mass production)
4.3. Outer case and lot label: The example of lot number changes to be same as 4.4.
Ver2.0 (June 25, 2021)
2. Specifications: Revised the operating temperature and storage temperature of general specifications.
4.4. Product name label: Corrected the QR code to Data Matrix.

Document No. DER-S0187A 9 Rev.2.0 ©2021 DMC Co., Ltd.
TSC-55/U-L User’s Guide
6. Warranty
6.1. Warranty Period
§ The warranty period is limited to 1 year from the date of shipping. The warranty for the initial defection
such as appearance defection is limited to 1 month.
§ Any defected parts under proper use will be examined by the supplier and replaced by the new parts if the
defection is considered to be caused by the supplier.
§ The replacement is subject to be included in the next lot.
6.2. Warranty Target
§ The warranty only covers the product itself and does not cover any damage to others caused by using this
product. Onsite repair or replacement is not supported.
§ We will do our best for delivery problem and product defections, but the warranty for the production line is
not covered.
6.3. Warranty Exceptions
Following conditions are not covered with the warranty and subject to charge.
§ Any malfunctions and damages during transportation and transfer by the user.
§ Any malfunctions and damages caused by a natural disaster or a fire.
§ Any malfunctions and damages caused by static electricity
§ Any malfunctions and damages caused by the failure of the associated equipment.
§ If the product is remodeled, disassembled or repaired by the user.
§ If the product is glued onto the equipment and uninstalled.
§ Any malfunctions and damages caused by an improper usage and handling against the specifications and
notes.