TM
Juno UR8HC007-001
Input Device and Power Management
Companion IC for Jupiter Devices
HID & SYSTEM MANAGEMENT PRODUCTS, H/PC IC FAMILY
DESCRIPTION
FEATURES
TM
Juno 01 is a member of a series of
• Typically consumes less than 1 µA
• Scans a fully programmable 8 X
16 matrix that supports Japanese,
English and European keyboards
• Operates continuously between 3
and 5 Volts
• GPIO pins provide interrupt at
both falling and rising edge of
signals, ideal for lid functions,
power, ring indicators, docking
signals, battery measurement, etc.
• Has additional GPIO available for
LEDs, switches, etc.
• Offers internal control of LCD
brightness/contrast, audio, etc. as
well as four 10-bit A/D channels
for power management monitoring
• Cost-effective, reducing overall
system costs by integrating
features that would typically
require multiple additional
multi-functional companion ICs for
Jupiter and other devices running
®
®
Microsoft Windows CE and
utilizing RISC-based processors.
The IC interfaces the system via
either asynchronous serial or the
Serial Peripheral Interface (SPI) and
provides keyboard scanning,
special general purpose I/O (GPIO)
and unique system power
• Offers unique power management
capabilities that work in harmony
®
with Windows CE’s power modes
• Always runs in “Stop” mode
without data or event loss
TM
management capabilities.
• Provides three Zero-Power PS/2
ports for the hot-plug connection
of external keyboards/mice &
internal mouse, including
MouseWheels
• Uses proprietary circuitry, so
“Stop” mode is entered even when
PS/2 devices are connected and
active
TM
TM
The Zero-Power Juno will power
down even between key presses.
Semtech’s proprietary circuitry
(patent pending) allows the IC to
power down even when PS/2
devices are connected and active.
Typical power consumption is less
than 1 µA, a first for embedded ICs.
components
• Provides programmable features
that allow for maximum design
differentiation without
customization
TM
• Available in 1.7mm high package
to accommodate slim designs
• Other Juno versions offer control
of internal pointing device
TM
The Juno provides continuous
operation between 3 and 5V and
scans a fully programmable 8 X 16
keyboard matrix. The IC is equipped
PIN ASSIGNMENTS
• Jupiter devices/Professional PCs
• H/PCs, Web Phones, & G3
Terminals
TM
with three Zero-Power PS/2 ports
for the hot-plug connection of an
external PS/2 keyboard and mouse
as well as an internal PS/2 mouse,
including those with MouseWheels.
APPLICATIONS
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60
TM
In addition, the Juno offers special
61
PWM1
PWM0
R7
R6
R5
R4
R3
R2
R1
40
C14
C15
EPX3
general purpose I/O (GPIO), ideal
for use for lid functions, power
switches, ring indicators, docking
signals, battery measurement, LEDs,
etc.
EPX2
GIO14/SW14
GIO15/SW15
GIO00/LED0
GIO01/LED1
GIO02/LED2
GIO03/LED3
VSS
OSCO
OSCI
PS2EN
HSUS
RESET
VSS1
LID
PWROK
MOSI/RXD
R0
VDD
The integration of features, many of
them programmable, on one IC
increases flexibility and reduces
component count and cost.
UR8HC007-001-FQ
AVREF
AVSS
EPX10
EPX9
EPX1
EPX0
GIO33/AD3
GIO32/AD2
GIO31/AD1
80
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Juno is a trademark of Semtech Corporation. All
other trademarks belong to their respective
companies.
Copyright @1998-2001 Semtech Corporation
DOC8-007-001-DS-108
www.semtech.com
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