AR1020-I/SS Microchip Technology Inc., AR1020-I/SS Datasheet - Page 12
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AR1020-I/SS
Manufacturer Part Number
AR1020-I/SS
Description
Touch Sensing Controller, 20 SSOP .209in TUBE
Manufacturer
Microchip Technology Inc.
Datasheet
1.AR1020-ISS.pdf
(37 pages)
Specifications of AR1020-I/SS
Operating Voltage
3.3 to 5.0 Volts ±5%
Standby Sleep Current
<1 μA
Operating “no Touch” Current
3.0 mA Typ.
Lead Free Status / Rohs Status
RoHS Compliant part
Electrostatic Device
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7.7 Communication Interface
The desired communication type is hardware selectable by chip part number and using pin M1.
The communication interface pins are shown below for each communication type.
7.7.1 I
I
The SDO pin functions as an interrupt output. It is asserted high when data is available.
Timing diagrams are shown below.
DS41393A-Page 8
2
C operates in slave mode with 7-bit address of 0x9A.
Table 5 : Communication Selection
Table 6 : Communication Pins
Figure 7 : I
Figure 8 : I
UART
UART
Type
2
Type
SPI
C
SPI
I
I
2
2
C
C
RX, TX, VSS
SCL, SDA, SDO (Irq), VSS
SCK, SDI, SDO, SS, SIQ (Irq), VSS
Chip P/N
AR1020
AR1020
AR1010
2
2
C Timing Diagram – Receive Data
C Timing Diagram – Transmit Data
Communication Pins
M1 pin
VDD
VDD
VSS
© 2009 Microchip Technology, Inc.