UR5HCSPI-FB Datasheet PDF - Semtech Corporation
Part Number | UR5HCSPI-FB | |
Description | Zero-PowerTM Keyboard Encoder & Power Management IC for H/PCs | |
Manufacturers | Semtech Corporation | |
Logo | ||
There is a preview and UR5HCSPI-FB download ( pdf file ) link at the bottom of this page. Total 20 Pages |
Preview 1 page No Preview Available ! SPICoderTM UR5HCSPI
Zero-PowerTM Keyboard Encoder &
Power Management IC for H/PCs
HID & SYSTEM MANAGEMENT PRODUCTS, H/PC IC FAMILY
DESCRIPTION
The SPICoderTM UR5HCSPI
keyboard encoder and power
management IC is designed
specifically for handheld PCs
(H/PCs). The off-the-shelf
UR5HCSPI will readily work with
CPUs designed for Windows CE®,
saving OEMs significant
development time and money as
well as minimizing time-to-market for
the new generations of handheld
products.
Three main design features of the
UR5HCSPI make it the ideal
companion for the new generation
of Windows CE® -compatible,
single-chip computers: low-power
consumption; real estate-saving
size; and special keyboard modes.
FEATURES
• SPI-compatible keyboard encoder
and power management IC with
other interfaces available
• Compatible with Windows CE®
keyboard specification
• Zero-PowerTM — typically
consuming less than 2µA,
between 3-5V
• Offers overall system power
management capabilities
APPLICATIONS
• StrongARMTM Handheld PCs
• Windows CE® Platforms
• Web Phones
PIN ASSIGNMENTS
• Compatible with “system-on silicon”
CPUs for H/PCs
• Special keyboard and power
management modes for H/PCs,
including programmable “wake-up”
keys
• Scans, debounces, and encodes
an 8 x 12 matrix and controls
discrete switches and LED
indicators
• Custom versions available
• Personal Digital Assistants (PDAs)
• Wearable Computers
• Internet Appliance
“Quasi” Zero-PowerTM consumption
(less than 2µA @ 3V), a must for
H/PCs, provides the host system
with both power management and
I/O flexibility, with almost no battery
drainage.
Finally, special keyboard modes
and built-in power management
features allow the SPICoderTM to
operate in harmony with the power
management modes of Windows
CE®, resulting in more user flexibility
and longer battery life.
33 23
34
_PWR_OK
22 NC
NC0
LED2
OSCO
LED1
OSCI
Vcc
UR5HCSPI-FB
LED0
_IOTEST
NC QFP
Vss
NC NC
_RESET
R7
_WKU
R6
Vx R5
C7
44
1
R4
12
11
6
C5 7
40
1 39
C4
C3
C2
C1
UR5HCSPI-FN
C0 12
PLCC
34
R0
R1
R2
R3
R4 17
29
18 23 28
_PWR_OK
_ATN
_SS
SCK
MOSI
MISO
XSW
SW0
C8
C9
C10/WUKO
The UR5HCSPI also offers
programmable features for wake-up
keys and general purpose I/O pins.
SPICoder is a trademark of Semtech Corp. All
other trademarks belong to their respective
companies.
Copyright Semtech 1997-2001
DOC5-SPI-DS-117
1
www.semtech.com
|
|
PIN DESCRIPTIONS, (CON’T)
XSW
The XSW pin is dedicated to an
external switch. This pin is
handled differently than the rest of
the switch matrix and is intended
to be connected to a switch
physically located on the outside of
the unit.
SW0
The SW0 pin is a dedicated input
pin for a switch.
PWR_OK
The PWR_OK is an active low pin
that monitors the battery status of
the unit. When the UR5HCSPI
detects a transition from high to
low on this pin, it will immediately
enter the STOP mode, turn the LED
off and remain in this state until the
batteries of the unit are replaced
and the signal is deasserted.
THE WINDOWS CE® KEYBOARD
The following illustration shows a typical implementation of a Windows CE®
keyboard.
Windows CE® does not support the following keyboard keys typically
found on desktop and laptop keyboards:
power
esc 1 ! 2 @ 3 # 4 $ 5 % 6 ^ 7 & 8 * 9 ( 0 )
_
-
~
`
Q
W
E
RTY
U
I O P =+ \ |
tab A S D F G H J K L ; : ' " enter
shift
Z X C V B N M ,< .> /?
shift
ctrl alt
[{ ]}
INSERT
SCROLL LOCK
PAUSE
NUM LOCK
Function Keys (F1-F12)
PRINT SCREEN
If the keyboard implements the Windows key, the following key
combinations are supported in the Windows CE® environment:
Key Combination
Result
Windows
Windows+K
Windows+I
Windows+C
Windows+E
Windows+R
Windows+H
Ctrl+Windows+A
Open Start Menu
Open Keyboard Tool
Open Stylus Tool
Open Control Panel
Explore the H/PC
Display the Run Dialog Box
Open Windows CE® Help
Select all on desktop
Copyright Semtech 1997-2001
DOC5-SPI-DS-117
5
www.semtech.com
Preview 5 Page |
Part DetailsOn this page, you can learn information such as the schematic, equivalent, pinout, replacement, circuit, and manual for UR5HCSPI-FB electronic component. |
Information | Total 20 Pages | |
Link URL | [ Copy URL to Clipboard ] | |
Download | [ UR5HCSPI-FB.PDF Datasheet ] |
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UR5HCSPI-FB | The function is Zero-PowerTM Keyboard Encoder & Power Management IC for H/PCs. Semtech Corporation | |
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