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PDF UR7HCPXZ-S440 Data sheet ( Hoja de datos )
| Número de pieza | UR7HCPXZ-S440 | |
| Descripción | Advanced Click-to-Select No-DriftTM Pointing Stick Controller | |
| Fabricantes | Semtech Corporation | |
| Logotipo |  |
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PixiPointTM Z Serial UR7HCPXZ-S440
Advanced “Click-to-Select”
No-DriftTM Pointing Stick Controller
HID & SYSTEM MANAGEMENT PRODUCTS, MOUSECODERTM FAMILY
DESCRIPTION
The PixiPointTM Z Serial mouse
encoder is a cost-effective, high-
functionality IC for strain gauge
“miniature joysticks” with Z-axis
functionality, such as the CTS series
106, 108 & 109. Ideal for portable
and other systems that need to
interface a mouse to a serial port,
the low-power (typically less than
3mA) PixiPointTM Z offers an
advanced algorithm for enhanced
motion control.
The IC implements the Tap (select)
and Double Tap (execute) and
Press Hold (drag) functions in
firmware. No special drivers are
needed to access these “Z”
functions. Other special features
provided by the IC include
CleanStopTM, which allows the
cursor to stop exactly when you
want it to and EasyDragTM, which
reduces the speed of the cursor
during drag, making it easier to
handle.
FEATURES
• Interfaces the system via serial
port, making it ideal for non-PC
systems
• Accurate No-DriftTM cursor control
via Semtech’s advanced algorithm
• Interfaces strain gauge “miniature
joysticks” with Z-Axis functionality,
such as those from CTS
• Implements the Tap (select),
Double Tap (execute) and Press
Hold (drag) in firmware – no
special serial drivers required
• EasyDragTM feature reduces the
speed of the cursor during drag,
making it easier to handle
APPLICATIONS
• Handhelds/Notebooks
• Smart Phones
PIN ASSIGNMENTS
• Offers CleanStopTM so cursor stops
when you want it to
• Supports Scrolling (MouseWheel)
• Low-power consumption of
typically less than 3mA makes it
ideal for battery-operated systems
• Operates at 3-5V in extended
temperature range
• Uses small 32-pin 7mm X 7mm
LQFP package
• Inexpensive, turn-key solution
• Utilizes sophisticated, patented
signal conditioning circuit
requiring less than 15 components
• Customized versions available
• Internet appliances
• Instrumentation
The PixiPointTM Z utilizes a special,
patented signal conditioning circuit
which enables a low-cost, simple
and real estate-saving
implementation. Just a few low
tolerance external components are
needed.
Serial transmission use speed of
1200 Baud with 7N1 framing. The
IC, a CMOS device operating at 4
MHz, utilizes the standard serial
mouse protocol, including Plug-n-
Play identification for MouseWheel
support.
32
AD
SELX
SELZ
DRVZ
VREF
_RESET
VSS2
VDD
1
8
9
25
24
SP1
SP0
INH
_RB
_SB
_MB
_LB
SENSOR_SEL
17
16
The PixiPointTM Z IC is also available
for PS/2-enabled systems.
PixiPoint is a trademark of Semtech Corporation.
All other trademarks belong to their respective
companies.
Copyright ©1999-2001 Semtech Corporation
DOC7-PXZ-S440-DS-103
1
www.semtech.com
1 page  
HARDWARE INTERFACE FOR THE COMMUNICATION LINES
The TXD and RTS lines are CMOS logic-level signals, suitable for direct connection to the pins of an UART.
Interfacing via the RS-232 port requires an addition of an inverting driver and receiver. Simple one-transistor
inverting driver and receiver can also be utilized. Contact Semtech for more details.
FEATURES
Byte 1
b0
b1
b2
b3
b4
b5
b6
Byte 2
b0
b1
b2
b3
b4
b5
b6
Byte 3
b0
b1
b2
b3
b4
b5
b6
Byte 4
b0
b1
b2
b3
b4
b5
b6
X6
X7: MSB of X Data
Y6
Y7: MSB of Y Data
Right Button Status, 1 = depressed
Left Button Status, 1 = depressed
Always=1
X0: LSB of X data
X1
X2
X3
X4
X5
Always=0
Y0: LSB of Y data
Y1
Y2
Y3
Y4
Y5
Always=0
Z0: LSB of Z data
Z1
Z2
Z3: MSB of Z data
Middle Button Status; 1=depressed
Always=0
Always=0
Copyright ©1999-2001 Semtech Corporation
DOC7-PXZ-S440-DS-103
5
www.semtech.com
5 Page | ||
| Páginas | Total 10 Páginas | |
| PDF Descargar | [ Datasheet UR7HCPXZ-S440.PDF ] | |
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