Touch Screen Controllers

Touch screen controllers are data converters which convert user actions on a screen to signals that can be read by a device. These controllers plug into sensors that communicate touch actions electronically, enabling the use of a touch screen device as an input mechanism in place of a mouse or keypad.


What are touch screen controllers used for?

Touch screen controllers are used in ATMs and point of sale equipment as well as in smart technology devices such as tablets, mobile phones, laptops and Kindles. Touch screen controllers are also standard in the manufacturing and engineering industries where display screens act as control panels for machinery and specialised equipment.


Types of touch screen controllers

Touch screen controllers come in two types: capacitive and resistive.


Capacitive touch screen controllers are compatible with screen panels coated with indium tin dioxide. The film coating conducts a constant electrical current across a sensor to pick up on any change in electrical charge when the screen is touched.


Resistive touch screen controllers produce an electrically resistive layer. The changes in resistance on this layer are identified as touch events, which are picked up by the controller for processing of data. 


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Description Price Conversion Rate Resolution Interface Type Sensing Technology Sensing Wire Type Mounting Type Package Type Pin Count Typical Operating Supply Voltage Dimensions Length Width Height Maximum Operating Temperature
RS Stock No. 178-4997
Mfr. Part No.AR1021-I/SS
BrandMicrochip
HK$13.26
Each (In a Tube of 67)
units
140sps 10 bit SPI Resistive 4-Wire, 5-Wire, 8-Wire Surface Mount SSOP 20 2.5 → 5 V 7.5 x 5.6 x 1.85mm 7.5mm 5.6mm 1.85mm +85 °C
RS Stock No. 665-8737
Mfr. Part No.ADS7846N
HK$38.66
Each
units
125ksps 12 bit - - - Surface Mount TSSOP 16 - 5 x 4.4 x 1.15mm 5mm 4.4mm 1.15mm +85 °C
RS Stock No. 125-4201
Mfr. Part No.CY8CMBR2044-24LKXI
HK$24.072
Each (In a Pack of 5)
units
- - UART Capacitive - Surface Mount QFN 16 1.71 → 5.5 V 3 x 3 x 0.55mm 3mm 3mm 0.55mm +85 °C
RS Stock No. 125-4142
Mfr. Part No.CY8C20110-SX2I
HK$14.518
Each (In a Pack of 5)
units
- - Serial-I2C Capacitive 2-Wire Surface Mount SOIC 16 2.4 → 5.25 V 9.98 x 3.98 x 1.48mm 9.98mm 3.98mm 1.48mm +85 °C
RS Stock No. 185-1355
Mfr. Part No.BU21078FV-E2
BrandROHM
HK$14.928
Each (In a Pack of 5)
units
- 8 bit - Capacitive 2-Wire Surface Mount SSOP-B 28 3 → 5.5 V 10.35 x 5.6 x 1.15mm 10.35mm 5.6mm 1.15mm +85 °C
RS Stock No. 177-1836
Mfr. Part No.AR1021-I/SO
BrandMicrochip
HK$15.21
Each (In a Pack of 5)
units
- 10 bit I2C, SPI Resistive 4-Wire, 5-Wire, 8-Wire Surface Mount SOIC 20 - 12.8 x 7.5 x 2.35mm 12.8mm 7.5mm 2.35mm +85 °C
RS Stock No. 146-0306
Mfr. Part No.MTCH108-I/SS
BrandMicrochip
HK$7.298
Each (In a Tube of 67)
units
- - Simple I/O Capacitive - Surface Mount SSOP 20 2.05 → 3.6 V 7.5 x 5.6 x 1.85mm 7.5mm 5.6mm 1.85mm +85 °C
RS Stock No. 165-2152
Mfr. Part No.MTCH6301-I/PT
BrandMicrochip
HK$19.491
Each (In a Tray of 160)
units
- 12 bit Serial-I2C Capacitive - Surface Mount TQFP 44 2.3 → 3.6 V 10 x 10 x 1.05mm 10mm 10mm 1.05mm +85 °C
RS Stock No. 893-8284
Mfr. Part No.MTCH6303-I/RG
BrandMicrochip
HK$31.96
Each (In a Pack of 2)
units
- 10 bit Serial-I2C Capacitive - Surface Mount QFN 64 2.3 3.6 V 9 x 9 x 0.9mm 9mm 9mm 0.9mm +85 °C
RS Stock No. 661-3548
Mfr. Part No.TSC2046IPW
HK$18.49
Each (In a Pack of 5)
units
- - - - - Surface Mount TSSOP 16 - 5 x 4.4 x 1.15mm 5mm 4.4mm 1.15mm +85 °C
New
RS Stock No. 193-8497
Mfr. Part No.CY8CMBR3102-SX1IT
HK$15.184
Each (In a Pack of 5)
units
- - I2C Capacitive 2-Wire Surface Mount SOIC 8 1.8 V 4.97 x 3.98 x 1.47mm 4.97mm 3.98mm 1.47mm +85 °C
New
RS Stock No. 194-9162
Mfr. Part No.CY8CMBR3106S-LQXI
HK$25.832
Each (In a Pack of 5)
units
- - - Capacitive 2-Wire Surface Mount QFN 24 1.71 → 5.5 V 4 x 4 x 0.55mm 4mm 4mm 0.55mm +85 °C
RS Stock No. 171-4088
Mfr. Part No.BU21027MUV-E2
BrandROHM
HK$10.356
Each (On a Reel of 2500)
units
- 12 bit Serial-I2C Resistive 4-Wire Surface Mount VQFN020V4040 20 3 V 4 x 4 x 0.98mm 4mm 4mm 0.98mm +85 °C
RS Stock No. 911-5647
Mfr. Part No.AR1100-I/SS
BrandMicrochip
HK$14.307
Each (In a Tube of 67)
units
- 10 bit SPI Resistive 4-Wire, 5-Wire, 8-Wire Surface Mount SSOP 20 5 V 7.5 x 5.6 x 1.85mm 7.5mm 5.6mm 1.85mm +85 °C
RS Stock No. 923-6766
Mfr. Part No.ADS7845E
HK$62.168
Each (In a Tube of 75)
units
- - - - - Surface Mount SSOP 16 - 5 x 4 x 1.5mm 5mm 4mm 1.5mm +85 °C
RS Stock No. 125-4203
Mfr. Part No.CY8CTMG120-56LTXI
HK$34.82
Each
units
- - Serial-I2C Capacitive 2-Wire Surface Mount QFN 56 3 → 5.25 V 8.1 x 8.1 x 0.95mm 8.1mm 8.1mm 0.95mm +85 °C
RS Stock No. 127-6599
Mfr. Part No.AT42QT1060-MMU
BrandMicrochip
HK$18.74
Each (In a Pack of 2)
units
- 8 bit Serial-I2C Spread-Spectrum Charge-Transfer - Surface Mount QFN 28 1.8 → 5.5 V 4.05 x 4.05 x 0.95mm 4.05mm 4.05mm 0.95mm +85 °C
RS Stock No. 922-2981
Mfr. Part No.ADS7846N
HK$33.082
Each (In a Tube of 90)
units
125ksps 12 bit - - - Surface Mount TSSOP 16 - 5 x 4.4 x 1.15mm 5mm 4.4mm 1.15mm +85 °C
RS Stock No. 177-2764
Mfr. Part No.AT42QT1010-MAHR
BrandMicrochip
HK$4.16
Each (On a Reel of 3000)
units
- 14 bit Digital Output - - Surface Mount UDFN/USON 8 1.8 V 2.05 x 2 x 0.55mm 2.05mm 2mm 0.55mm +85 °C
RS Stock No. 171-4180
Mfr. Part No.BU21027MUV-E2
BrandROHM
HK$15.692
Each (In a Pack of 5)
units
- 12 bit Serial-I2C Resistive 4-Wire Surface Mount VQFN020V4040 20 3 V 4 x 4 x 0.98mm 4mm 4mm 0.98mm +85 °C
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