參數(shù)資料
型號(hào): UR7HCTS2-S840
廠商: Semtech Corporation
英文描述: SPI/Serial Interface,Low Power PS/2 Touch Screen Controller/Digitizer(串行外圍接口/串行接口,低功率,PS/2觸摸屏幕控制器/數(shù)字化轉(zhuǎn)換器)
中文描述: 的SPI /串行接口,低功耗的PS / 2觸摸屏控制器/數(shù)字轉(zhuǎn)換器(串行外圍接口/串行接口,低功率,的PS / 2觸摸屏幕控制器/數(shù)字化轉(zhuǎn)換器)
文件頁(yè)數(shù): 1/16頁(yè)
文件大小: 177K
代理商: UR7HCTS2-S840
ScreenCoder
TM
UR7HCTS2-S840
SPI/Serial Interface, Low-Power
Touch Screen Controller/Digitizer
ScreenCoder, MouseCoder and Self-Power
Management are trademarks of Semtech
Corpoation. All other trademarks belong to their
respective companies.
Copyright 2000-2001 Semtech Corporation
DOC7-TS2-S840-DS-103
www.semtech.com
1
HID & SYSTEM MANAGEMENT PRODUCTS, MOUSECODER
TM
FAMILY
DESCRIPTION
FEATURES
1
9
16
8
25
32
24
17
LQFP
SYT
SXL
_PWR_DOWN
SOUT
ISEL/SCLK
TxD
RSVD2
_RB
OSCIN
_OSCOUT
VSS
XR1
YB1
YT1
XL1
_RTS/_SS
S
X
_
V
_
V
V
X
X
R
X
Y
Y
X
_
S
The ScreenCoder
TM
SPI/Serial
UR7HCTS2-S840 is a touch screen
controller and integrated digitizer IC
designed specifically for RISC-
based systems, such as wireless
Internet appliances. The small,
single footprint IC interfaces the
system via either the Serial
Peripheral Interface (SPI) or
asynchronous serial.
Unlike simple A/D implementations,
the ScreenCoder
TM
SPI/Serial does
not require complicated software
drivers and no processing burden
is placed on the CPU. Due to the
IC’s superior data processing and
sampling rate, the ScreenCoder
TM
SPI/Serial is ideal for use in systems
requiring handwriting recognition.
Patented power management
techniques are also implemented
so that the IC only consumes 1 μA
of current most of the time, even
with the external mouse connected.
The IC operates at 3 to 5 Volts.
Features of Semtech’s motion
algorithm include resistance to RF
and other noise which provides
smooth and precise motion control.
The ScreenCoder
TM
SPI/Serial also
works flawlessly with any 4-wire or
8-wire touch screen, regardless of
size or manufacturer.
The cost-effective solution requires
few external components, allowing
for a simple and real estate saving
implementation.
Exrtremely low-power operation —
IC typically consumes less than
1 μA
Highly resistant to RF and other
noise sources
Uses sophisticated power
management for maximum power
savings
Offers external PS/2 port for the
hot-plug connection of an external
PS/2 pointing device
Capable of providing other
features, such as battery
monitoring and GPIO
PS/2 and USB interfaces available
Available in tiny 7mm X 7mm
32-pin LQFP package
Touch screen controller / digitizer
in a single, small footprint IC
Interfaces the system via either
Serial Peripheral Interface (SPI) or
asynchronous serial
Works with any 4-wire or 8-wire
resistive touch screen, regardless
of size, material or vendor
Provides high resolution of 1000
points per axis and a sampling
rate of 200Hz
Accurate, quick touch response
due to advanced sampling
technology and patented
algorithms
Wireless internet appliances
Handheld PCs (H/PCs)
Web phones
Portable systems
APPLICATIONS
PIN ASSIGNMENTS
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