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UR5HCSPI-SA01 Datasheet

  • UR5HCSPI-SA01

  • SPICoder SA01 - Very low-power SPI-interface keyboard encode...

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  • 22頁

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SPICoder廬 SA01 UR5HCSPI-SA01
Very Low-Power Keyboard Encoder and
Power Management IC for H/PCs
HID & SYSTEM MANAGEMENT PRODUCTS, KEYCODER廬 FAMILY
DESCRIPTION
The SPICoder廬 SA01
UR5HCSPI-SA01, a member of
Semtech鈥檚 KeyCoder廬 product
family, is a keyboard encoder and
power management IC designed
specifically for handheld PCs
(H/PCs), web phones and other
systems that run Microsoft廬
Windows廬 CE and utilize the Intel
StrongARM鈩?processor.
The SPICoder廬 SA01 offers
several features necessary to
H/PCs, including extremely low
power consumption, real estate-
saving size, and special keyboard
modes.
The IC consumes an extremely
small amount of power (less than
2 碌A at 3 V) and provides the host
system both power management
and I/O flexibility, with minimal
battery drainage.
Special keyboard modes and built-
in power management features
allow the SPICoder廬 SA01 to
operate in harmony with the power
management modes of
Windows廬 CE, resulting in greater
user flexibility, and longer battery
life.
The IC scans, debounces and
encodes an 8 x 14 keyboard
matrix. It communicates with the
host over the SPI channel,
implementing a high-reliability two-
way protocol. The SPICoder廬
SA01 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?Ideal for use with the Intel
StrongARM鈩?processor
鈥?Patented technology for extremely
low power consumption 鈥?/div>
typically less than 2 碌A between
3-5 V
鈥?Offers overall system power
management capabilities
鈥?Available in low-profile QFP
package
鈥?Implements high-reliability two-
way protocol
鈥?Fully compatible with the
Windows廬 CE keyboard
specification
鈥?Works in harmony with the power
management modes of
Windows廬 CE
鈥?Provides special modes of
operation for H/PCs, including
programmable 鈥渨ake-up鈥?keys
鈥?Scans an 8 x 14 matrix; controls
discrete switches and LED
indicators
鈥?Compatible with 鈥渟ystem-on
silicon鈥?CPUs for H/PCs
PRELIMINARY
APPLICATIONS
鈥?StrongARM鈩?handheld PCs
鈥?Windows廬 CE platforms
鈥?Web phones
PIN ASSIGNMENTS
_ATN
_SS
SCK
MOSI
MISO
XSW
SW0
C8
C9
C10/WUKO
C11
PWR_OK
NC0
OSCO
OSCI
Vcc
NC
NC
_RESET
_WKU
Vx
C7
33
34
23
22
鈥?Personal digital assistants (PDAs)
鈥?Wearable computers
鈥?Internet appliances
QFP
NC
C12
C13
GIO0
_IOTEST
Vss
NC
R7
R6
R5
R4
44
1
12
11
Semtech, SPICoder, and KeyCoder are registered
trademarks of Semtech Corporation. Self-Power
Management is a trademark of Semtech
Corporation. All other trademarks belong to their
respective companies.
Copyright 漏1998-2002 Semtech Corporation
DOC5-SPI-SA01-DS-107 2002-07
UR5HCSPI-SA01-FB
44-pin QFP
(0.80 mm pitch
(10x10 mm)
1
www.semtech.com
C6
C5
C4
C3
C2
C1
C0
R0
R1
R2
R3

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