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PDF UR7HCTS2-U860-DR Data sheet ( Hoja de datos )
| Número de pieza | UR7HCTS2-U860-DR | |
| Descripción | High-Performance USB Touch Screen Controller / Digitizer | |
| Fabricantes | Semtech Corporation | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de UR7HCTS2-U860-DR (archivo pdf) en la parte inferior de esta página. Total 12 Páginas | ||
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ScreenCoderTM UR7HCTS2-U860
High-Performance USB
Touch Screen Controller / Digitizer
HID & SYSTEM MANAGEMENT PRODUCTS, MOUSECODERTM FAMILY
DESCRIPTION
The ScreenCoderTM USB IC is the
first single IC that seamlessly
interfaces ANY 4- or 8-wire
resistive touch screen to a USB-
equipped system. It is also the
first touch screen controller IC on
the market designed to
accommodate a very wide range of
size, capacitance and resistance of
4- or 8-wire touch screens,
providing a universal performance
solution among different OEM
products and touch screen
vendors. This unique feature of the
IC provides OEMs with a wide
variety of interchangeable touch
screen options.
Unlike digitizers, the
ScreenCoderTM USB integrates a
digitizer with a controller that
performs all touch detection, noise
filtering, error elimination and
provides the host with processed
and stable positioning data over
USB. Semtech’s unique motion
algorithms provide high resistance
to RF and other noise sources
resulting in precise, non-jittery
cursor control.
Ideal application for the
ScreenCoderTM USB include
portable devices, interactive kiosks
and industrial / custom displays
with integrated touch screens.
The universal features of the
ScreenCoderTM USB, as
implemented in both the system
and the sensor interface, reduce
the development effort and cost of
touch input based systems. The
ScreenCoderTM USB is available in
a slim, 36-pin SSOP package.
FEATURES
• Controller & digitizer in a single IC
• Interfaces the system via USB
• Works with ANY 4- or 8-wire
resistive touch screen regardless
of size, material or vendor
• Provides high resolution - 1000
points per axis, enabling IC to
make precise drawing and
signature captures
• Accurate, quick touch response
due to Semtech’s advanced
sampling technology and
algorithms
• Highly resistant to RF and other
noise
• No digitizer or external A/D
necessary
• Fully compliant with USB HID
specifications; works with native
USB drivers including Windows®
98, Me and 2000
• Convienent calibration applet
offered free of charge
• Uses slim 36-pin, SSOP package
• Customized versions available
APPLICATIONS
• Handhelds/Notebooks
• Portable Devices
PIN ASSIGNMENTS
• Interactive Kiosks
• Industrial/Custom Touch Screens
1
RSVD1
RSVD2
RSVD3
SXL
SYT
SYB
SXR
RSVD4
RSVD5
RSVD6
RSVD7
VREF
_RESET
VSS2
VDD
OSCIN
_OSCOUT
VSS
18
36-pin SSOP
36
D+
D-
_RB
RSVD13
XR2
YB2
YT2
XL2
RSVD12
RSVD11
USBV
RSVD10
RSVD9
RSVD8
XL1
YT1
YB1
XR1
19
ScreenCoder, MouseCoder are trademarks of
Semtech Corp. All other trademarks belong to
their respective companies.
Copyright Semtech 2000-2001
DOC7-TS2-U860-DS-101
1
www.semtech.com
1 page  
USB FUNCTIONALITY
The ScreenCoderTM USB is a low-
speed USB device with remote
wake-up capability. The IC asks
the system to send report requests
every 10ms according to USB
specification for low speed device.
The ScreenCoderTM USB describes
itself as a pointer, and provides
absolute position data to the
system.
USB DESCRIPTORS
Offset Part
Size
Device Descriptor
0 bLength
1
1 bDescriptonType 1
2 bcdUSB
2
3
bDeviceClass
1
4 bDeviceSubClass 1
5 bDeviceProtocol 1
6 bMaxPacketSize0 1
8 idVendor
2
10 idProduct
2
12 bcdDevice
2
14
iManufacture
1
15 iProduct
1
16
iSerialNumber
1
17 bNum-
1
Configuration Descriptor
0 bLength
1
1 bDescriptorType 1
2
wTotalLength
2
4 bNumInterface 1
5 bConfigurationValue1
6
iConfiguration
1
7
bmAttribute
1
8 MaxPower
1
Interface Descriptor
0 bLength
1
1 bDescriptorType 1
2 bInterfaceNumber 1
3 bAlternateSetting 1
4 bNumEndpoints 1
5 bInterfaceClass 1
6 bInterfaceSubClass 1
7 bInterfaceProtocol 1
8 iInterface
1
HID Descriptor
0 bLength
1
1 bDescriptorType 1
2 bcdHID
2
4 bCountryCode 1
5 bNumDescriptor 1
6 bDescriptorType 1
7 wDescriptorLength 2
Value Description
0x12
0x01
0x0100
0x00
0x00
0x00
0x08
0x047A
0x0004
0x0061
0x04
0x0E
0x00
0x01
Numeric expression specifying the size of
device descriptor
Device descriptor type
USB HID spec release number 01.00
Class code
Sub class code
Protocol code
Maximum packet size for EP0
USAR's vendor ID
USAR ScreenCoderTM USB Product ID
Device release number
Index of string descriptor describing
manufacturer
Index of string descriptor describing
product
Index of String descriptor describing
serial number
Number of possible configurations
0x09
0x02
0x0022
0x01
0x01
0x00
0xA0
0x32
Size of configuration descriptor in bytes
Configuration (assigned by USB)
Total length of data returned for this
Number of interfaces supported by this
configuration
Current configuration value
Configuration string descriptor index
Configuration characteristics - bus
powered, with remote wakeup
Maximum power consumption of USB
device 100 mA
0x09
0x04
0x00
0x00
0x01
0x03
0x00
0x02
0x00
Size of Interface descriptor in bytes
Interface descriptor type
Number of interface
Number of alternate setting
Number of endpoint
Class code (HID)
Subclass code (nor boot interface
subclass)
Protocol code = mouse
Index of string descriptor describing this
interface
0x09
0x21
0x0100
0x00
0x01
0x22
0x0038
Size of HID descriptor in byte
HID descriptor type
HID Spec release number
Hardware target country
Number of HID class descriptor follow
Report descriptor type
Total length of report descriptor
Copyright Semtech 2000-2001
DOC7-TS2-U860-DS-101
5
www.semtech.com
5 Page 
Page Left Blank Intentionally
Copyright Semtech 2000-2001
DOC7-TS2-U860-DS-101
11
www.semtech.com
11 Page | ||
| Páginas | Total 12 Páginas | |
| PDF Descargar | [ Datasheet UR7HCTS2-U860-DR.PDF ] | |
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