AR1010T-I/SS Microchip Technology, AR1010T-I/SS Datasheet - Page 30
![IC TOUCH SCREEN CTRLR 20-SSOP](/photos/6/58/65895/150-20-ssop_sml.jpg)
AR1010T-I/SS
Manufacturer Part Number
AR1010T-I/SS
Description
IC TOUCH SCREEN CTRLR 20-SSOP
Manufacturer
Microchip Technology
Type
Resistiver
Specifications of AR1010T-I/SS
Package / Case
20-SSOP
Touch Panel Interface
4-Wire, 5-Wire, 8-Wire
Number Of Inputs/keys
3 Key
Resolution (bits)
10 b
Data Interface
UART
Data Rate/sampling Rate (sps, Bps)
9.6k
Voltage - Supply
3.3 V ~ 5 V
Current - Supply
17mA
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Voltage Supply Source
Single Supply
Supply Voltage Range
3.135V To 3.465V, 4.75V To 5.25V
Operating Temperature Range
-40°C To +85°C
Digital Ic Case Style
TSSOP
No. Of Pins
20
Svhc
No SVHC (15-Dec-2010)
Supply
RoHS Compliant
Ic Function
Touch Screen Controller
Rohs Compliant
Yes
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Sampling Rate (per Second)
-
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AR1010T-I/SS
Manufacturer:
MICROCHIP
Quantity:
12 000
Part Number:
AR1010T-I/SS
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
8.3 4-Wire Sensor
A 4-wire resistive touch sensor consists of a Stable and Flex layer, electrically separated by spacer dots. The
layers are assembled perpendicular to each other. The touch position is determined by first applying a voltage
gradient across the flex layer and using the stable layer to measure the flex layer’s touch position voltage. The
second step is applying a voltage gradient across the stable layer and using the flex layer to measure the stable
layer’s touch position voltage.
The measured voltage at any position across a driven axis is predictable. A touch moving in the direction of the
driven axis will yield a linearly changing voltage. A touch moving perpendicular to the driven axis will yield a
relatively unchanging voltage.
Figure 14: 4-Wire Decoding
DS41393A-Page 26
© 2009 Microchip Technology, Inc.