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BU21049GUL Datenblatt(PDF) 2 Page - Rohm

Teilenummer BU21049GUL
Bauteilbeschribung  4-wire Resistive Touch Screen Controller
Download  26 Pages
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Hersteller  ROHM [Rohm]
Direct Link  http://www.rohm.com
Logo ROHM - Rohm

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BU21049GUL
TSZ02201-0Y1Y0F300010-1-2
© 2011 ROHM Co., Ltd. All rights reserved.
31.JAN.2012 Rev.001
www.rohm.co
TSZ22111・15・001
2/23
Datasheet
Datasheet
●Pin Configuration
●Pin Description
(*1) AD1 connect to GND.
(*2) SCL and SDA need pull-up with over 2.2kΩ resister.
(*3) RSTB connect to VDD if not control.
(*4) VREF bypass to GND with a 1.0uF capacitor and cannot connect to supply.
●Equivalent circuit
Pin
No
Pin
Name
I/O
Description
Equivalent
circuit
A1
YP
I/O
YP channel input
D
A2
XN
I/O
XN channel input
D
A3
YN
I/O
YN channel input
D
A4
AD0
I
Slave address input bit0
A
B1
XP
I/O
XP channel input
D
B2
PGND
-
Ground for touch screen drivers
-
B3
AD1
I
Test input(*1)
A
B4
SDA
I/O
Serial data(*2)
C
C1
PVDD
-
Power supply for touch screen
drivers.
-
C2
AUX
I
Auxiliary channel input
D
C3
RSTB
I
System reset(*3)
A
C4
SCL
I
Serial clock(*2)
-
D1
VREF
-
Regulator
output
for
control
logic.(*4)
-
D2
GND
-
Ground
-
D3
VDD
-
Power supply
-
D4
INT
O
Interrupt output. Pin polarity with
active low.
B
1
2
3
4
A
B
C
D
Top View
VREF
GND
VDD
INT
PVDD
AUX
RSTB
SCL
XP
PGND
AD1
SDA
YP
XN
YN
AD0
PAD
PAD
PAD
PAD
Fig.A
Fig.B
Fig.C
Fig.D


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