AR1010-ISLASHML datasheet(52/70 Pages) MICROCHIP

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AR1000 SERIES RESISTIVE TOUCH SCREEN CONTROLLER

DS41393B-page 52

Preliminary

 2009-2012 Microchip Technology Inc.

11.1

Minimum Operating Voltage

The AR1000 series controller will operate down to 2.5V ± 5%. Touch performance will be optimized by using the high-

est allowable voltage for the design.

The PICkit Serial included in the AR1000 Development kit supports 3V-5V range of operation.

11.2

AR1000 Electrical Characteristics

Operating Voltage: 2.5 ≤ VDD ≤ 5.25V

Function

Input

Output

VSS ≤ VIL ≤ 0.15*VDD

(0.25*VDD + 0.9V) ≤ VIH ≤ VDD

—

VSS ≤ VIL ≤ 0.15*VDD

(0.25*VDD + 0.9V) ≤ VIH ≤ VDD

—

SCL/SCK

SCL/SCK/TX

VSS ≤ VIL ≤ 0.2*VDD

0.8*VDD ≤ VIH ≤ VDD

—

SCL/SCK/TX

—

VSS ≤ VOL(1) ≤ (1.2V – 0.15*VDD)(2)

(1.25*VDD – 2.25V)(3) ≤ VOH(1) ≤ VDD

SDI

SDI/SDA/RX

VSS ≤ VIL ≤ 0.2*VDD

0.8*VDD ≤ VIH ≤ VDD

—

SDO

—

VSS ≤ VOL(1) ≤ (1.2V – 0.15*VDD)(2)

(1.25*VDD – 2.25V)(3) ≤ VOH(1) ≤ VDD

SIQ

—

VSS ≤ VOL(1) ≤ (1.2V – 0.15*VDD)(2)

(1.25*VDD – 2.25V)(3) ≤ VOH(1) ≤ VDD

SDA

SDI/SDA/RX

VSS ≤ VIL ≤ 0.2*VDD

0.8*VDD ≤ VIH ≤ VDD

Open-drain

SDI/SDA/RX

VSS ≤ VIL ≤ 0.2*VDD

0.8*VDD ≤ VIH ≤ VDD

—

VSS ≤ VIL ≤ 0.2*VDD

0.8*VDD ≤ VIH ≤ VDD

—

Note 1:

These parameters are characterized but not tested.

At 10 mA.

At -4 mA.

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