SX8634I05AWLTRT datasheet(3/80 Pages) SEMTECH

Part #	SX8634I05AWLTRT

Description	Low Power, Capacitive Button and Slider Touch Controller with Enhanced LED

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Manufacturer	SEMTECH [Semtech Corporation]

Direct Link	http://www.semtech.com

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ADVANCED COMMUNICATIONS & SENSING

DATASHEET

Revision 7_6, October 10

www.semtech.com

3

SX8634

Low Power, Capacitive Button and Slider Touch Controller

(12 sensors) with Enhanced LED Drivers and Proximity Sensing

3.15.4

Example

25

3.16

General Purpose Input and Outputs

25

3.16.1

Introduction and Definitions

25

3.16.2

GPI

26

3.16.3

GPP

26

3.16.4

GPO

27

3.16.5

Intensity index vs PWM pulse width

30

3.17

Smart Wake Up

31

4

PIN DESCRIPTIONS ..................................................................................................................... 32

4.1

Introduction

32

4.2

ASI pins

32

4.3

Host interface pins

33

4.4

Power management pins

36

4.5

General purpose IO pins

37

5

DETAILED CONFIGURATION DESCRIPTIONS .............................................................................. 38

5.1

Introduction

38

5.2

General Parameters

41

5.3

Capacitive Sensors Parameters

42

5.4

Button Parameters

47

5.5

Slider Parameters

51

5.6

Mapping Parameters

55

5.7

GPIO Parameters

58

6

I2C INTERFACE........................................................................................................................... 62

6.1

I2C Write

62

6.2

I2C read

63

6.3

I2C Registers Overview

64

6.4

Status Registers

65

6.5

Control Registers

68

6.6

SPM Gateway Registers

70

6.6.1

SPM Write Sequence

71

6.6.2

SPM Read Sequence

72

6.7

NVM burn

73

7

APPLICATION INFORMATION ...................................................................................................... 74

7.1

Typical Application Schematic

74

7.2

Example of Touch+Proximity Module

75

7.2.1

Overview

75

7.2.2

Operation

75

7.2.3

Performance

75

7.2.4

Schematics

76

7.2.5

Layout

77

8

REFERENCES ............................................................................................................................. 78

9

PACKAGING INFORMATION ........................................................................................................ 79

9.1

Package Outline Drawing

79

9.2

Land Pattern

79

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SX8634I05AWLTRT Datasheet(PDF) 3 Page - Semtech Corporation

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