AR1020-I/SO Microchip Technology, AR1020-I/SO Datasheet - Page 22
![IC TOUCH SCREEN CTRLR 20-SOIC](/photos/6/64/66480/150-20-soic_sml.jpg)
AR1020-I/SO
Manufacturer Part Number
AR1020-I/SO
Description
IC TOUCH SCREEN CTRLR 20-SOIC
Manufacturer
Microchip Technology
Type
Resistiver
Specifications of AR1020-I/SO
Package / Case
20-SOIC (7.5mm Width)
Touch Panel Interface
4-Wire, 5-Wire, 8-Wire
Number Of Inputs/keys
3 Key
Resolution (bits)
10 b
Data Interface
I²C, Serial, SPI™
Voltage - Supply
3.3 V ~ 5.5 V
Current - Supply
17mA
Operating Temperature
-40°C ~ 85°C
Mounting Type
Surface Mount
Voltage Supply Source
Single Supply
Resolution
10 bit
Interface Type
I2C, SPI
Supply Voltage (max)
5 V
Supply Voltage (min)
3.3 V
Maximum Operating Temperature
+ 85 C
Minimum Operating Temperature
- 40 C
Mounting Style
SMD/SMT
Supply Current
300 mA
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:
AR1020-I/SO
Manufacturer:
NSC
Quantity:
1 500
Part Number:
AR1020-I/SO
Manufacturer:
MICROCHIP/微芯
Quantity:
20 000
7.14 Command Response
A received command will be responded to as follows.
<Header><DataSize><Response><Command><Data>…<Data>
7.15 Commands
7.15.1 Enable Touch - 0x12
Controller will send touch coordinate reports for valid touch conditions.
Send
Receive : <0x55><0x02><Response><0x12>
7.15.2 Disable Touch - 0x13
Controller will not send any touch coordinate reports. A touch will, however, still wake up the controller if asleep.
Send
Receive : <0x55><0x02><Response><0x13>
DS41393A-Page 18
<Header> is defined as a value of 0x55 and is used to mark the beginning of the response packet.
<DataSize> is the number of bytes being sent in the response packet, after <DataSize>.
<Response> is a returned status to the received command.
<Command> is a confirmation of the command being responded to.
<Data> represent from zero to eight bytes of returned data.
Command
Table 9 : Command Set Summary
: <0x55><0x01><0x12>
: <0x55><0x01><0x13>
Value
0x2B
0x12
0x13
0x14
0x20
0x21
0x22
0x23
0x28
0x29
Value Description
0x00
0x01
0x03
0x04
0xFC
Enable Touch
Disable Touch
Calibrate Mode
Register Read
Register Write
Register Start Address Request
Registers Write to Eeprom
EEPROM Read
EEPROM Write
EEPROM Write to Registers
Success
Unrecognized Command
Unrecognized Header
Command Timeout (entire command not received within 100ms)
Calibration Cancel
Command Description
© 2009 Microchip Technology, Inc.