ur7hcpxz-s440 Semtech Corporation, ur7hcpxz-s440 Datasheet

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ur7hcpxz-s440

Manufacturer Part Number
ur7hcpxz-s440
Description
Advanced Click-to-select No-drifttm Pointing Stick Controller
Manufacturer
Semtech Corporation
Datasheet
The PixiPoint
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) PixiPoint
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
CleanStop
cursor to stop exactly when you
want it to and EasyDrag
reduces the speed of the cursor
during drag, making it easier to
handle.
The PixiPoint
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.
The PixiPoint
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
HID & SYSTEM MANAGEMENT PRODUCTS, MOUSECODER
DESCRIPTION
TM
, which allows the
TM
TM
TM
TM
Z IC is also available
Z Serial mouse
Z utilizes a special,
Z offers an
TM
, which
• Interfaces the system via serial
• Accurate No-Drift
• Interfaces strain gauge “miniature
• Implements the Tap (select),
• EasyDrag
• Handhelds/Notebooks
• Smart Phones
FEATURES
APPLICATIONS
1
PIN ASSIGNMENTS
port, making it ideal for non-PC
systems
via Semtech’s advanced algorithm
joysticks” with Z-Axis functionality,
such as those from CTS
Double Tap (execute) and Press
Hold (drag) in firmware – no
special serial drivers required
speed of the cursor during drag,
making it easier to handle
TM
_RESET
feature reduces the
DRVZ
VREF
SELX
SELZ
VSS2
VDD
PixiPoint
AD
TM
cursor control
8
1
32
9
No-Drift
TM
TM
FAMILY
Z Serial UR7HCPXZ-S440
Advanced “Click-to-Select”
TM
• Offers CleanStop
• Supports Scrolling (MouseWheel)
• Low-power consumption of
• Operates at 3-5V in extended
• Uses small 32-pin 7mm X 7mm
• Inexpensive, turn-key solution
• Utilizes sophisticated, patented
• Customized versions available
• Internet appliances
• Instrumentation
Pointing Stick Controller
www.semtech.com
when you want it to
typically less than 3mA makes it
ideal for battery-operated systems
temperature range
LQFP package
signal conditioning circuit
requiring less than 15 components
16
25
24
17
SP1
SP0
INH
_RB
_SB
_MB
_LB
SENSOR_SEL
TM
so cursor stops

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ur7hcpxz-s440 Summary of contents

Page 1

... AD SELX SELZ DRVZ VREF _RESET VSS2 VDD Serial UR7HCPXZ-S440 Advanced “Click-to-Select” Pointing Stick Controller TM FAMILY • Offers CleanStop TM 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 • ...

Page 2

... XXX= Denotes Revision number Left, Middle, Scroll And Right Mouse Buttons 3 Switch Interface X Input Y Input Z Input Control 16-Bit Timer Ocillator Circuit 2 OSCIN-OSCOUT 2 TA=-20° +85° C UR7HCPXZ-S440-FG Order number EVK7-PXZ-S440-XXX 3 X/Y/Z Channel Activation Control Analog Input Signal 5 Signal Condition. Control Power Strobe www.semtech.com ...

Page 3

... FUNCTIONAL DESCRIPTION The UR7HCPXZ-S440 consists functionally of four major sections (see Functional Diagram, previous page). These are the PixiPoint TM Z Interface, the 16-Bit Timer, the Oscillator Circuit and the Serial Communication Port. All sections communicate with each other and operate concurrently. SIGNAL CONDITIONING CIRCUIT ...

Page 4

... Driver with Plug-n-Play support. Copyright ©1999-2001 Semtech Corporation DOC7-PXZ-S440-DS-103 POWER CONSUMPTION The UR7HCPXZ-S440 typically consumes less than 3mA. Low-power consumption makes it suitable for use in battery-operated systems. SERIAL COMMUNICATION Communication through the serial port is uni-directional at a fixed speed of 1200 Baud, 7N1 protocol (7 data bits, 1 stop bit, no parity check). ...

Page 5

... 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. Copyright ©1999-2001 Semtech Corporation DOC7-PXZ-S440-DS-103 FEATURES ...

Page 6

... SUGGESTED INTERFACING FOR THE PIXIPOINT Copyright ©1999-2001 Semtech Corporation DOC7-PXZ-S440-DS-103 TM Z SERIAL UR7HCPXZ-S440-FG 6 www.semtech.com ...

Page 7

... MECHANICAL INFORMATION FOR FG (32 PIN LQFP) PACKAGE Detail Recommended PCB Footprint Copyright ©1999-2001 Semtech Corporation DOC7-PXZ-S440-DS-103 Symbol ...

Page 8

... Supply Voltage Vdd Input Voltage Vin Current Drain per Pin I (not including Vss or Vdd) Operating Temperature Ta UR7HCPXZ-S440 Storage Temperature Range Tstg DC Electrical Characteristics, Temperature range=T low to T high unless otherwise noted) Characteristic Symbol Supply Voltage Output Voltage (10 µA load) Voh Vol ...

Page 9

... PIXIPOINT TM Z SERIAL BILL OF MATERIALS FOR PAGE 6 SCHEMATIC UR7HCPXZ-S440-FG BOM Description Quantity Manufacturer Capacitors Generic C2 Generic C4 1 Generic C5 1 Generic C8 1 Generic ICs National U3 1 Generic U1 1 Semtech U2 1 TelCom Resistors Generic R3 1 Generic R1 1 Generic R4,R5 2 Generic ...

Page 10

... Telefax Copyright ©1999-2001Semtech Corporation. All rights reserved. PixiPoint and MouseCoder are trademarks of Semtech Corporation. Semtech is a registered trademark of Semtech Corporation. All other trademarks belong to their respective companies. INTELLECTUAL PROPERTY DISCLAIMER This specification is provided "as is" with no warranties whatsoever ...

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