DMC TSC-55/RU User manual
Analog Resistive Touch Screen Controller
TSC-55/RU User’s Guide
Document No. DER-S0189A 1 Rev.2.0 ©2021 DMC Co., Ltd.
TSC-55/RU 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. Interface type........................................................................................................................... 6
4.1. Serial mode........................................................................................................................................6
4.2. USB mode..........................................................................................................................................6
5. Packing Specification ............................................................................................................. 7
5.1. Outline................................................................................................................................................7
5.2. Packing material.................................................................................................................................7
5.3. Outer case and lot label......................................................................................................................7
5.4. Product name label ............................................................................................................................8
6. Changes & Improvements......................................................................................................8
6.1. Version History...................................................................................................................................9
7. Warranty.................................................................................................................................10
7.1. Warranty Period ...............................................................................................................................10
7.2. Warranty Target ...............................................................................................................................10
7.3. Warranty Exceptions ........................................................................................................................10
8. Precautions for Use ..............................................................................................................11
8.1. General Handling .............................................................................................................................11
8.2. Others...............................................................................................................................................11
Dimensional Drawing
Document No. DER-S0189A 2 Rev.2.0 ©2021 DMC Co., Ltd.
TSC-55/RU User’s Guide
1. Product Overview
1.1. Products Applicable
This specification is applicable to TSC-55/RU.
1.2. Overview
TSC-55/RU 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 serial
correspondence at 9600bps and USB. TSC-55/RU 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, and automatic calibration data loading with an external EEPROM.
§ TSC-55/RU TSC-55/RU 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.
In addition, the correction data can be saved in the IC on the board with the built-in
EEPROM.
TSC-55/RU 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/RU is a succeeding model of the boards of the TSC-35/RU. TSC-55/RU is lead-free and compliant
with RoHS.
Document No. DER-S0189A 3 Rev.2.0 ©2021 DMC Co., Ltd.
TSC-55/RU 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/RU 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/RU 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/RU)
(RS-232C/USB)
To host
xl
Detection layer
Touch
(Touch Screen)
Drive layer
E
D
C
B
A
Vcc
Document No. DER-S0189A 4 Rev.2.0 ©2021 DMC Co., Ltd.
TSC-55/RU User’s Guide
2. Specifications
General Specifications
Item
Rating
Remarks
Operating Temp.
Serial/USB
-40°C to +80°C
No dew condensation
Storing Temp.
Serial/USB
-40°C to +85°C
No dew condensation
Supply Voltage
Serial
DC 3.0V to 5.5V
USB
DC 3.0V to 5.5V
Consumption Current
75mA
In serial mode, 50pps,
Vin=5.0V, at touch input.
Correspondence
(Serial)
Format
Asynchronous Serial
Fixed value
Transfer Rate
9600bps
Data Format
8bit
Stop Bit
1bit
Parity
None
Correspondence
(USB)
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: 150p/s with DMC original
driver software. (TSC-DD)
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-S0189A 5 Rev.2.0 ©2021 DMC Co., Ltd.
TSC-55/RU 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
1
Vbus
USB Vbus
2
D-
USB D-
3
D+
USB D+
4
GND
USB GND
5
Shield
USB FG
CN5
1
Dout
RS-232C Data Output
2
Din
RS-232C Data Input
3
GND
RS-232C GND
CN6
1
Vin
Power Input
2
GND
GND
*1: When you use it at 3.3V of the serial mode, please do not connect TSC-55/RU to Vbus of CN4.
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
CN5
S3B-PH-K-S
J.S.T. Mfg Co., Ltd
CN6
S2B-PH-K-S
J.S.T. Mfg Co., Ltd
Document No. DER-S0189A 6 Rev.2.0 ©2021 DMC Co., Ltd.
TSC-55/RU User’s Guide
4. Interface type
TSC-55/RU has serial and USB interface type. You choose either type. You cannot use both these at the
same time.
(Notice) In the state that connected a serial and a USB cable to a computer, please do not start power on of
TSC-55/RU and computer. Because it may cause malfunction.
4.1. Serial mode
In serial mode, please use CN5 for connecting to host computer, and CN6 for power supply.
Specifications
Transmission format:Asynchronous serial
Transfer rate: 9600bps
Data format: 8 bit
Stop bit: 1 bit
Parity: None
4.2. USB mode
In USB mode, please use CN4 for connecting to host computer.
Specifications
Transmission spec: USB Specification 2.0 Full Speed
Transfer mode: Control transfer (Command) / Interrupt transfer (Coordinate)
Device class: Vendor definition
Document No. DER-S0189A 7 Rev.2.0 ©2021 DMC Co., Ltd.
TSC-55/RU User’s Guide
5. Packing Specification
5.1. Outline
TSC-55/RU is wrapped up in the air packing of the prevention of static protection type and puts it in a
packing box.
5.2. Packing material
Outer case: 75 x 55 x 15 mm, clay coated newsback board
Cushioning: 120 x 70 mm, air packing, static protection
5.3. Outer case and lot label
T S C - 55/ R U
Lot number
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
Product name, DMC logo
3I09
Document No. DER-S0189A 8 Rev.2.0 ©2021 DMC Co., Ltd.
TSC-55/RU User’s Guide
5.4. Product name label
Backside of board
Product Name Label
TSC-55/RU: 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/RU Rev.A
Screw Hole
Document No. DER-S0189A 9 Rev.2.0 ©2021 DMC Co., Ltd.
TSC-55/RU User’s Guide
6. Changes & Improvements
6.1. Version History
§ TSC-55/RU
Ver0.1 (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)
5.4. Product Name Label: Label contents changes (applied from mass production)
5.3. Outer case and lot label: The example of lot number changes to be same as 5.4.
Ver2.0 (June 25, 2021)
1.2. Overview: Added the description that EEPROM is built in TSC-55 / RU.
2. Specifications: Revised the operating temperature and storage temperature of general specifications.
5.4. Product name label: Corrected the QR code to Data Matrix.
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