Datasheet

Datasheet

2/10

TSZ02201-0Y1Y0F300060-1-2

© 2012 ROHM Co., Ltd. All rights reserved.

19.Jun.2012 Rev.001

www.rohm.com

TSZ22111・15・001

BU21021GUL

●Pin Layout

1

2

3

4

5

A

T4

PVDD

DVDD

VDD

DVSS

B

XP

AVDD

AVSS

DVDD_EXT

C

XN

YP

RSTB

T1

T2

D

YN

SEL_CSB

SO

T3

IFSEL

E

ECL

EDA

SCL_SCK

SDA_SI

INT

Top view

Figure 2. Pin Layout

●Pin Descriptions

Pin no.

Pin Name

I/O

Description

Equivalent

circuit

D1

YN

I/O

YN channel input.

D

C1

XN

I/O

XN channel input.

D

C2

YP

I/O

YP channel input.

D

B1

XP

I/O

XP channel input.

D

A1

T4

I/O

Test input / output.

D

A2

PVDD

O

Regulator output for touch screen voltage supply.

D

B3

AVDD

O

Regulator output for analog circuit.

D

A2

DVDD

I/O

Regulator output for digital circuit

D

B4

AVSS

-

Analog ground.

-

A4

VDD

-

Chip power supply.

-

A5

DVSS

-

Digital ground.

-

B5

DVDD_EXT

I

Digital power supply select. （L=internal、H=external）

A

C3

RSTB

I

Reset (Low active)

C

C4

T1

I

Test input.

A

C5

T2

I

Test input.

A

D4

T3

I

Test input.

A

D5

IFSEL

I

Host interface select. (L=4-wire SPI, H=2-wire serial)

A

D3

SO

O

2-wire serial

High impedance

4-wire SPI

Data output

O

E5

INT

O

Interrupt

E

D2

SEL_CSB

I

2-wire serial

Slave address select

4-wire SPI

Chip select

I

E4

SDA_SI

I/O

2-wire serial

Data input / output

4-wire SPI

Data input

I/O

E3

SCL_SCK

I

2-wire serial

Clock input

4-wire SPI

Clock input

I

E2

EDA

I/O

SDA for EEPROM

B

E1

ECL

I/O

SCL for EEPROM

B

(*1) Bypass AVDD and DVDD to GND with 1.0 uF capacitor and PVDD and T4 need terminal opening.

(*2) Digital voltage can be supplied by DVDD when DVDD_EXT=H.

(*3) ECL and EDA need pull-up with 4.7kΩ resister in use case. If not use, connect to GND.

(*4) SCL_SCK and SDA_SI need pull-up with over 4.7kΩ resister and SO need terminal opening when use 2-wire serial I/F.

(*5) Above parameters are only recommended for use. Absolute reliability is not guaranteed.

(*6) When VDD is not supplied, state of RSTB=”H” is prohibition.