AR1020-I/ML Microchip Technology, AR1020-I/ML Datasheet - Page 7

• Manufacturer Part Number: AR1020-I/ML
• Description: IC TOUCH SCREEN CTRLR 20-QFN
• Manufacturer: Microchip Technology
• Type: Resistiver

Specifications of AR1020-I/ML

• Resolution (bits): 10 b
• Touch Panel Interface: 4-Wire, 5-Wire, 8-Wire
• Number Of Inputs/keys: 3 Key
• 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
• Package / Case: 20-VQFN Exposed Pad, 20-HVQFN, 20-SQFN, 20-DHVQFN
• Voltage Supply Source: Single Supply
• Controller Type: Touch Screen
• Ic Interface Type: I2C, SPI
• Supply Voltage Range: 3.3V To 5V
• Operating Temperature Range: -40°C To +85°C
• Digital Ic Case Style: QFN
• No. Of Pins: 20
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Sampling Rate (per Second): -
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant

6 PIN DIAGRAM
© 2009 Microchip Technology, Inc.
Figure 2 : Pin Diagrams – SOIC / SSOP and QFN Packages
VDD
M1
SY-
M2
WAKE
SIQ
SY+
SS
SDO
NC
SCK/SCL/TX
NC
SDI/SDA/RX
SX+
Y+
Y-
5WSX-
X+
X-
VSS
Table 2: Pin Descriptions
Pin Name
SOIC, SSOP
10
11
12
13
14
15
16
17
18
19
20
1
9
2
3
4
5
6
7
8
Pin #
QFN
18
19
20
10
11
12
13
14
15
16
17
1
2
3
4
5
6
7
8
9
Supply Voltage
Communication Selection
Sense Y- (8-Wire). Tie to VSS, if not used.
4/8-wire or 5-wire Sensor Selection
Touch Wake-Up
LED drive / SPI Interrupt. No Connect, if not used.
Sense Y+ (8-Wire). Tie to VSS, if not used.
Slave Select (SPI). Tie to VSS, if not used.
SPI Serial Data Output / I
No Connection. No Connect or tie to VSS or VDD.
SPI/I
No Connection. No Connect or tie to VSS or VDD.
I
Sense X+ (8-Wire). Tie to VSS, if not used.
Y+ Drive
Y- Drive
5W Sense (5-Wire) / Sense X- (8-Wire). Tie to VSS, if not used.
X+ Drive
X- Drive
Supply Voltage Ground
2
C Serial Data / SPI Serial Data Input / UART Receive
2
C Serial Clock / UART Transmit
Pin Description
2
C Interrupt. Tie to VSS, if UART.
DS41393A-Page 3