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參數(shù)資料
| 型號： | UR7HCMTB |
| 廠商： | Semtech Corporation |
| 英文描述： | Trackball and Mouse PS2/RS232 Encoder With Ballistic Gain(帶彈道增益的軌跡球和鼠標(biāo)PS/RS232譯碼器) |
| 中文描述： | 軌跡球和鼠標(biāo)PS2/RS232編碼器彈道增益（帶彈道增益的軌跡球和鼠標(biāo)PS/RS232譯碼器） |
| 文件頁數(shù)： | 1/12頁 |
| 文件大小： | 80K |
| 代理商： | UR7HCMTB |
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TC
RTS
SER_OUT
RESET
VSS
LIN
M_SW
R_SW
L_SW
TD
STROBE
OSCIN
OSCOUT
VDD
+X
-X
-Y
+Y
PDIP/
S OIC
mousec oder produc t spec ific ations
Trac kCoder UR 7HCMT B
Trac kball and Mouse
PS 2/R S 232 E nc oder
With Ballistic Gain
Trac kCoder UR 7HCMT B
D
O
C
7 - H C
M T
B
- D
S
- 1 0 0
Desc ription
The UR7HCMTB TrackCoder
TM
is a
low-power, single-chip mouse and
trackball encoder that interfaces a
trackball/mouse photodiode sensing
circuit and three switches.
The UR7HCMTB provides protocol
auto-sensing, allowing the device to be
linked through either the serial or PS/2
mouse port of the host system.
The UR7HCMTB will auto-switch
between the Serial and PS/2 mouse
communication protocols depending on
the port to which the device is
actually connected.
The IC provides three-button mouse
functionality. It is compatible with the
IBM/Microsoft two-button and Logitech
three-button mouse protocols.
The UR7HCMTB offers a factory
programmable Ballistic Gain table that
may be switched on and off
dynamically. A fourth button is
available to act as an on/off switch.
Communication through the serial port
is half-duplex at a fixed speed of 1200
Baud. PS/2 communication, at 10
kbps, is bidirectional. The UR7CMTB
supports all commands from and to the
system, as defined in the IBM PS/2
Mouse Communication Protocol.
The URH7CMTB is a CMOS device
operating at 4 MHz. The low-power
consumption of the IC makes it suitable
for battery-operated systems. Power in
the serial mode, as in any standard
mouse, can be drawn from the RS232
lines of the host system.
The URH7CMTB is available in Plastic
DIP and SOIC packages. Custom
versions are also available.
F eatures
Autoselectable RS232 and PS/2 hardware interface
Implements two- and three-button mouse
IBM/Microsoft/Logitech-compatible
Provides built-in direct interface for phototransistors
Factory programmable hysteresis and Fine Gain control
Strobed Illumination of of phototransistors
CMOS/TTL digital inputs and non-strobed version available
Factory-programmable Ballistic Gain table
Ballistic Gain can be switched on & off dynamically, optionally using 4th button
Test mode for quadrature encoders adjustment and calibration
Low power consumption in a 3 to 6 Volt operating range
Small 18 pin PDIP or SOIC packages available
Sun Microsystems and Custom versions available
A pplic ations
Embedded pointing devices
Industrial panels
Instrumentation
Standard mouse and trackball devices
Custom system interfaces
Pin C onfiguration
1
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