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TSZ02201-0L5L0FF00890-1-2

© 2016 ROHM Co., Ltd. All rights reserved.

4.Aug.2016 Rev.001

www.rohm.com

TSZ22111 • 15 • 001

BU21026MUV

Contents

General Description ........................................................................................................................................................................1

Features..........................................................................................................................................................................................1

Applications ....................................................................................................................................................................................1

Key Specifications...........................................................................................................................................................................1

Package..........................................................................................................................................................................................1

Typical Application Circuit(s) ...........................................................................................................................................................1

Contents .........................................................................................................................................................................................2

Pin Configuration(s) ........................................................................................................................................................................3

Pin Description(s) ...........................................................................................................................................................................3

Equivalent circuit.............................................................................................................................................................................3

Block Diagram(s) ............................................................................................................................................................................4

Description of Block(s)....................................................................................................................................................................4

Power on Reset...........................................................................................................................................................................4

A/D Converter .............................................................................................................................................................................4

Touch Screen I/F .........................................................................................................................................................................4

Touch Detection ..........................................................................................................................................................................5

Digital Filter .................................................................................................................................................................................5

Absolute Maximum Ratings ............................................................................................................................................................6

Thermal Resistance

(Note 1) ...............................................................................................................................................................6

Recommended Operating Conditions.............................................................................................................................................6

Electrical Characteristics.................................................................................................................................................................6

Power on Reset Timing Chart .........................................................................................................................................................7

2-wire Serial Interface Timing Chart................................................................................................................................................7

2-wire Serial Interface.....................................................................................................................................................................8

Start Condition.............................................................................................................................................................................8

Stop Condition.............................................................................................................................................................................8

Data Transfer ..............................................................................................................................................................................8

Acknowledge Bit (sending)..........................................................................................................................................................8

Acknowledge Bit (receiving) ........................................................................................................................................................8

Address Byte...............................................................................................................................................................................8

Command Byte ...........................................................................................................................................................................9

Write Protocol............................................................................................................................................................................ 11

Read Protocol ...........................................................................................................................................................................12

Operation ......................................................................................................................................................................................13

Position Detection of Touch Screen...........................................................................................................................................13

Touch Pressure Measurement ..................................................................................................................................................13

A/D Conversion Time ................................................................................................................................................................14

A/D Sampling Time with 2-wire Serial Interface ........................................................................................................................14

Operational Notes.........................................................................................................................................................................15

Ordering Information.....................................................................................................................................................................17

Marking Diagrams.........................................................................................................................................................................17

Physical Dimension, Tape and Reel Information...........................................................................................................................18

Revision History............................................................................................................................................................................19