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PDF UR8HC007-004 Data sheet ( Hoja de datos )
| Número de pieza | UR8HC007-004 | |
| Descripción | Zero-PowerTM Input Device and Power Management IC | |
| Fabricantes | Semtech Corporation | |
| Logotipo |  |
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JunoTM 04 UR8HC007-004
Zero-PowerTM Input Device and
Power Management IC
HID & SYSTEM MANAGEMENT PRODUCTS, H/PC IC FAMILY
DESCRIPTION
The JunoTM 04 is a member of a
series of input device and power
management companion ICs for
RISC-based portable systems. On
a single IC, the JunoTM 04 integrates
control of any 4-wire or 8-wire
resistive touch screen, keyboard
scanning, unique power
management capabilities, and
plenty of General Purpose Input /
Output (GPIO).
The JunoTM 04 provides continuous
operation between 3 and 5V and
scans a fully programmable 8 X 16
keyboard matrix.The Zero-PowerTM
JunoTM 04 will power down even
between key presses. Typical
power consumption is less than 1
µA, a first for embedded ICs.
The JunoTM 04 is equipped with
Semtech’s proprietary protocol
developed specifically for RISC-
based handheld machines. It
interfaces the system via either
Asynchronous Serial (UART) or the
Serial Peripheral Interface (SPI).
The integration of features, many of
them programmable, on one IC
increases flexibility and reduces
component count and cost.
FEATURES
• Typically consumes less than 1µA
• Scans an 8 x 16 keyboard matrix
that supports Japanese, English
and European keyboards
• Interfaces any four- or eight-wire
resistive touch screen
• Operates continuously between 3
Volts and 5 Volts
• Offers unique power management
capabilities that work in harmony
with Windows® CE power modes
• Always runs in "Stop" mode without
data or event loss
• 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
• Provides programmable features
that allow for maximum design
differentiation without
customization
• Cost-effective, reducing overall
system costs by integrating
features that would typically
require multiple components
• Available in 80-pin 13 x 13 mm,
1.7mm high package to
accommodate slim designs
APPLICATIONS
• Jupiter-class devices
• Professional H/PCs
• H/PCs
• Web Phones, G3 Terminals
PIN ASSIGNMENTS
60 41
61
R1
R0
BOT3/RIGHT
BOT2/LEFT
BOT1/BOT
BOT0/TOP
TOP3/RIGHTEN
TOP2/LEFTEN
TOP1/BOTEN
TOP0/TOPEN
VDD
AVREF
AVSS
TOPAD
BOTAD
LEFTAD
RIGHTAD
C15
C14
GIO31/AD1
80
UR8HC007-004-FQ
40
RIGHT2/GIO66
RIGHT3/GIO67
C8
C9
C10
C11
GIO00/LED0
GIO01/LED1
GIO02/LED2
GIO03/LED3
VSS
OSCO
OSCI
C12
C13
RESET
VSS1
LID
PWROK
MOSI/RXD
21
1 20
Juno is a trademark of Semtech Corporation. All
other trademarks belong to their respective
companies.
Copyright @1998-2001 Semtech Corporation
DOC8-007-004-DS-103
1
www.semtech.com
1 page  
PIN DEFINITIONS, (CON’T)
Pin Numbers
Mnemonic
BOT3/RIGHT
QFP
63
Type
O
BOT2/LEFT
64 O
BOT1/BOT
65 O
BOT0/TOP
66 O
TOP3/_RIGHTEN
67 O
TOP2/_LEFTEN
68 O
TOP1/_BOTEN
69 O
TOP0/_TOPEN
70 O
_TOUCHINT
RIGHTAD
LEFTAD
BOTAD
TOPAD
System and Power
Management
_LID
PWROK
_HSUS
5
77
76
75
74
23
22
9
I
Ai
Ai
Ai
Ai
I±Int
I±Int
I
Name and Function
If no hardware touchscreen driver,
drive output to bottom side of
touchscreen; otherwise output for right
side of touchscreen
If no hardware touchscreen driver,
drive output to bottom side of
touchscreen; otherwise output for left
side of touchscreen
If no hardware touchscreen driver,
drive output to bottom side of
touchscreen; otherwise output for
bottom side of touchscreen
If no hardware touchscreen driver,
drive output to bottom side of
touchscreen; otherwise output for top
side of touchscreen
If no hardware touchscreen driver,
drive output to top side of touchscreen;
otherwise enable output to right side of
touchscreen
If no hardware touchscreen driver,
drive output to top side of touchscreen;
otherwise enable output to left side of
touchscreen
If no hardware touchscreen driver,
drive output to top side of touchscreen;
otherwise enable output to bottom side
of touchscreen
If no hardware touchscreen driver,
drive output to top side of touchscreen;
otherwise enable output to top side of
touchscreen
Touchscreen interrupt input
A/D input from right side of
touchscreen
A/D input from left side of touchscreen
A/D input from bottom side of
touchscreen
A/D input from top side of touchscreen
Lid closed signal from the lid switch
(active-low). Capable of interrupt on
both positive and negative edges
Power OK signal. Capable of interrupt
on both positive and negative edges
Host Suspended signal (active-low).
When "Low," indicates that host
computer system is in power-reduced
or Stop mode.
Copyright ©1998-2001 Semtech Corporation
DOC8-007-004-DS-103
5
www.semtech.com
5 Page 
POWER MANAGEMENT MODES OF OPERATION
The JunoTM family has three modes
of operation relating to its power
consumption.
POWER MANAGEMENT
The Juno™ UR8HC007 family of controllers implements two power
management methods: system-coordinated power management and
Self-Power Management™ (SPM).
The "Stop" mode is the lowest
power consumption mode. In this
mode, the crystal is stopped and
the IC consumes only 1 µA of
leakage current. This is the default
mode to which the IC will revert any
time an event or a signal condition
does not force it to exit this mode.
The "Wait" mode is entered each
time it is necessary for a timer to be
running in order to perform a
system function. Such functions
include the LED blinking mode and
the use of one of the PWM
channels. Typical power
consumption in this mode is several
hundred µAs.
System-coordinated power management primarily determines the tasks
performed and the type of reports communicated to the Host. The Juno™
04 monitors the system states through the PWROK (Power OK), _LID (Lid
closed) and _HSUS (Host suspended) lines. In addition to these signal
inputs, the UR8HC007 family provides a set of registers, described in the
"Registers" chapter of the JunoTM 04 Technical Reference Manual, that can
be used by the host to control the PM-related performance of the controller
through software. According to the status of these lines (or register
settings), the Juno™ 04 will enable or disable specific tasks and reports
suited to the current power and system management state of the Host.
Self-Power Management™ describes a method implemented by the Juno™
family of controllers that, independently of any system intervention, results in
the lowest power consumption possible within the given parameters of its
operation. Through Self-Power Management™, the Juno™ controllers are
capable of typically operating at only 1 µA, independent of the state of the
system. Self-Power Management™ primarily determines the actual power
consumption of the controller IC.
The "Run" mode is entered briefly,
only to process an event or while an
interrupt-generating signal condition
persists. The controller IC will
remain in this mode only for as long
a signal prohibits it from reentering
a lower power consumption mode
or for as long as it is necessary to
process a Host-related transaction
(a few milliseconds).
The Juno™ 04 implements the Semtech-patented Self-Power
Management™ method to achieve the minimum power consumption
possible, independent of the Host power management state.
Even when the Host is in the active state, the IC can still operate most of
the time at only 1 µA, even with external PS/2 devices attached to it.
Critical
Suspend
PWROK=0
PWROK=0
PWROK=1
AND
_LID=0
PWROK=1
AND _LID=1
AND _HSUS=1
PWROK=1
AND _LID=1
AND _HSUS=0
PWROK=1
AND _LID=0
Lid
Closed*
PWROK=0
PWROK=1
AND _LID=1
AND _HSUS=1
Host
Suspend
PWROK=1
AND _LID=1
AND _HSUS=0
PWROK=1
AND _LID=0
PWROK=1 AND _LID=1 AND _HSUS=1
PWROK=1 AND _LID=1
AND _HSUS=0
SPM
Copyright ©1998-2001 Semtech Corporation
DOC8-007-004-DS-103
11
www.semtech.com
11 Page | ||
| Páginas | Total 20 Páginas | |
| PDF Descargar | [ Datasheet UR8HC007-004.PDF ] | |
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