Rainbow-electronics AT42QT1040 Uživatelský manuál stáhnout pdf (Strana 2)

9524A–AT42–03/09

AT42QT1040

1. Pinout and Schematic

1.1 Pinout Configuration

I/O CMOS input and output OD CMOS open drain output P Ground or power

Table 1-1. Pin Listing

Pin Name Type Function Notes If Unused...

1 SNS2 I/O Sense pin To Cs2 Leave open

2 SNSK1 I/O Sense pin To Cs1 + key Leave open

3SNS1I/O

Sense pin and

option detect

To Cs1 and/or option resistor Connect to option resistor*

4 SNSK0 I/O Sense pin To Cs0 + key Leave open

5SNS0I/O

Sense pin and

option detect

To Cs0 and/or option resistor Connect to option resistor*

6N/C– – –

7N/C– – –

8 Vss P Supply ground –

9 Vdd P Power –

10 N/C – – –

11 OUT0

OD Out 0 Alternative function: Debug CLK Leave open

12 OUT1

OD Out 1 Alternative function: Debug DATA Leave open

13 OUT3

OD Out 3 Leave open

14 OUT2

OD Out 2 Leave open

15 SNSK3 I/O Sense pin To Cs3 + key Leave open

16 SNS3 I/O Sense pin To Cs3 Leave open

17 N/C – – –

18 N/C – – –

19 N/C – – –

20 SNSK2 I/O Sense pin To Cs2 + key Leave open

* Option resistor should always be fitted even if channel is unused and Cs capacitor is not fixed.

N/C

VSS

VDD

N/C

SNS2

SNSK1

SNS1

SNSK0

SNS0

OUT0

OUT1

QT1040

OUT3

OUT2

SNSK3

SNS3

N/C

SNSK2

N/C

1 2 3 4 5 6 7 ... 17 18

Sensor IC 1
AT42QT1040 1

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