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BU21026MUV-E2 Arkusz danych(PDF) 1 Page - Rohm

Numer części BU21026MUV-E2
Szczegółowy opis  4-wire Resistive Touch Screen Controller
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Producent  ROHM [Rohm]
Strona internetowa  http://www.rohm.com
Logo ROHM - Rohm

BU21026MUV-E2 Arkusz danych(HTML) 1 Page - Rohm

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〇Product structure : Silicon monolithic integrated circuit 〇This product has no designed protection against radioactive rays
.
1/19
TSZ02201-0L5L0FF00890-1-2
© 2016 ROHM Co., Ltd. All rights reserved.
4.Aug.2016 Rev.001
TSZ22111 • 14 • 001
www.rohm.com
Resistive touch screen controller LSI series
4-wire Resistive
Touch Screen Controller
BU21026MUV
General Description
BU21026MUV is a low power 4-wire resistive touch
screen controller. BU21026MUV measures coordinates
and touch pressures with a 12bit A/D converter.
BU21026MUV has a digital filter for noise reduction.
Features
4-wire resistive touch screen controller
Single 1.65V to 3.60V supply.
Low standby current ( 0.8uA max)
12bit SAR A/D converter
2-wire serial interface
Command base interface
Digital filter
Touch pressure measurement
Auto power down control
Built-in clock oscillation circuit
.
Applications
Equipment with a built in user interface of 4-wire
resistive touch screen
Portable device such as smart phone, tablet, PDA.
Digital still camera, digital video camera, portable TV.
PC / PC peripheral equipment such as laptop PC,
touch screen monitor, printer.
Key Specifications
Power supply voltage
1.65V to 3.60V
Temperature range
-30℃ to 85℃
Standby current
0.8uA (Max.)
Operating current
120uA (Typ.)
Coordinate resolution
12Bits
Package
VQFN020V4040
4.00mm x 4.00mm x 1.00mm
Typical Application Circuit(s)
1. 4-wire resistive touch screen
2. Pull-up resistor for 2-wire serial interface
3. Bypass capacitors
4. Diodes for ESD protection
5. Low pass filter for noise reduction
XP
YP
XN
YN
BU21026
AD0
AD1
SDA
AUX
INT
SCL
Auxilary Input
SDA
SCL
GPIO
VDD
GND
GND
GND
1.0μF
2.2kΩ
0.1μF
2.2kΩ
Master
( 2-wire serial
interface )
0.1μF
0.1μF
0.1μF
0.1μF
10Ω
10Ω
10Ω
10Ω
GND
Touch
Screen
3
2
5
1
4
W(Typ) x D(Typ) x H(Max)
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