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UR5HCSPI-XX-FB Datasheet

  • UR5HCSPI-XX-FB

  • ENCODER|CMOS|QFP|44PIN|PLASTIC

  • 20頁(yè)

  • ETC

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SPICoder
TM
UR5HCSPI
Extremely Low-Power Keyboard Encoder
& Power Management IC for H/PCs
HID & SYSTEM MANAGEMENT PRODUCTS, H/PC IC FAMILY
DESCRIPTION
The SPICoder
TM
UR5HCSPI
keyboard encoder and power
management IC is designed
specifically for handheld PCs
(H/PCs). The off-the-shelf
SPICoder
TM
will readily work with
CPUs designed for Windows廬 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
SPICoder
TM
make it the ideal
companion for the new generation
of Windows廬 CE-compatible,
single-chip computers: low-power
consumption; real estate-saving
size; and special keyboard modes.
Extremely low power consumption
(less than 2 碌A(chǔ) at 3 Volts), 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 SPICoder
TM
to
operate in harmony with the power
management modes of
Windows廬 CE, resulting in more
user flexibility and longer battery
life.
The SPICoder
TM
also offers
programmable features for wake-up
keys and general purpose I/O pins.
FEATURES
鈥?SPI-compatible keyboard encoder
and power management IC
鈥?Compatible with Windows廬 CE
keyboard specification
鈥?Extremely low power consumption
鈥?typically consuming less than
2 碌A(chǔ) between 3-5V
鈥?Offers overall system power
management capabilities
鈥?Compatible with 鈥渟ystem-on silicon鈥?/div>
CPUs for H/PCs
鈥?Special keyboard and power
management modes for H/PCs,
including programmable 鈥渨ake-up鈥?/div>
keys
鈥?Scans, debounces, and encodes
an 8 x 12 matrix and controls
discrete switches and LED
indicators
APPLICATIONS
鈥?StrongARM
TM
handheld PCs
鈥?Windows廬 CE platforms
鈥?Web phones
PIN ASSIGNMENTS
_ATN
_SS
SCK
MOSI
MISO
XSW
SW0
C8
C9
C10/WUKO
C11/_LID
C6
C7
Vx
NC
_WKU
_RESET
Vcc
OSCI
OSCO
NC0
NC
鈥?Personal digital assistants (PDAs)
鈥?Wearable computers
鈥?Internet appliances
6
23
22
_PWR_OK
NC0
OSCO
OSCI
Vcc
NC
NC
_RESET
_WKU
Vx
C7
33
34
UR5HCSPI-FB
QFP
NC
LED2
LED1
LED0
_IOTEST
Vss
NC
R7
R6
R5
R4
44
1
12
11
C5
C4
C3
C2
C1
C0
R0
R1
R2
R3
R4
7
1
40
39
12
UR5HCSPI-FN
PLCC
34
C6
C5
C4
C3
C2
C1
C0
R0
R1
R2
R3
17
18
23
29
28
_PWR_OK
_ATN
_SS
SCK
MOSI
MISO
XSW
SW0
C8
C9
C10/WUKO
SPICoder is a trademark of Semtech Corporation.
All other trademarks belong to their respective
companies.
Copyright 漏1997-2001 Semtech Corporation
DOC5-SPI-DS-118
1
www.semtech.com
NC
R5
R6
R7
Vss
NC
_IOTEST
LED0/GIO0
LED1/C13
LED2/C12
C11/_LID

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