BU21049GUL Datasheet, PDF (1/26 Pages) Rohm – 4-wire Resistive Touch Screen Controller

BU21049GUL
4-wire Resistive
Touch Screen Controller
BU21049GUL
●General Description
Unlike most resistive touch screen controllers, the
BU21049GUL 4-wire resistive touch-screen controller
generate data to enable dual touch detection.
The Host processor can use data to detect single point
coordinates and dual coordinates.
●Features
■ Enables single touch and dual touch using
standard 4-wire resistive touch screen
■ I2C like interface for interfacing to the host
processor
■ 12-bit Resolution
■ Single 1.65V to 3.60V Supply.
■ Power on reset
■ Auto power down control
■ Built-in clock oscillation circuit
●Typical Application Circuits
●Key Specifications
■ Power supply voltage
■ Temperature range
■ Standby current
■ Sleep current
■ Operating current
■ Coordinate resolution
1.65V～3.6.0V
-20[℃]～85[℃]
1.0uA (Max.)
100uA (Typ.)
0.8mA(Typ.)
12bit
●Packages
VCSP50L2
2.00 ㎜ × 2.00 ㎜ × 0.55(max) ㎜
●Applications
■ Equipment with a built in the user interface of 4-wire
resistive touch screen
■ Portable information equipment like as Smart phone,
Table, PDA.
■ Audio-visual equipment like as Digital still camera,
Digital video camera, portable TV.
■ PC/ PC peripheral equipment like as Laptop, Touch
screen monitor, printer.
○Product structure：Silicon monolithic integrated circuit ○This product is not designed protection against radioactive rays
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TSZ22111・14・001
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TSZ02201-0Y1Y0F300010-1-2
31.JAN.2012 Rev.001