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參數(shù)資料
| 型號(hào)： | UR8HC342 |
| 廠商： | Semtech Corporation |
| 英文描述： | Robust 8042 Keyboard / ACPI-Embedded Controller(健壯8042鍵盤/ACPI-嵌入式控制器) |
| 中文描述： | 魯棒8042鍵盤/ ACPI的嵌入式控制器（健壯8042鍵盤/ ACPI的嵌入式控制器） |
| 文件頁(yè)數(shù)： | 1/12頁(yè) |
| 文件大?。?/td> | 225K |
| 代理商： | UR8HC342 |
ACPITroller 342 UR8HC342
Robust 8042 Keyboard /
ACPI-Embedded Controller
ACPITroller is a registered trademark of Semtech
Corporation. All other trademarks belong to their
respective companies.
Copyright 1998-2001 Semtech Corporation
DOC8-342-DS-105
www.semtech.com
1
HID & SYSTEM MANAGEMENT PRODUCTS, SYSTEM MGMT IC FAMILY
DESCRIPTION
FEATURES
Handhelds / Notebooks
Industrial / Vertical systems
ACPI-compatible systems
Single board computers
The ACPITroller 342 UR8HC342 is
a single IC that functions both as an
8042-type Human Input Device
Controller (HIDC) and an ACPI-
compliant Embedded Controller
(EC). The ACPITroller 342
provides the typical functionality of
an 8042-type HID controller with
embedded key and motion
scanning. In addition, the
ACPITroller 342 functions as an
ACPI-compliant embedded
controller (EC) and SMBus host.
The IC achieves unparalleled
minimum power consumption
(typically less than 1 μA) due to
Semtech's patented extremely low-
power technologies for both PS/2
ports and the SMBus port – an
industry first. The ACPITroller 342
can power down even when
devices are connected and active.
Based on Semtech's patented
extremely low-power technology,
the ACPITroller 342 always
operates in the "STOP" mode,
independently of the configuration
and without any data or event
losses.
Using the ACPITroller 342, system
designers can implement systems
that take advantage of the SMBus,
the Smart Battery System, and the
ACPI specifications, all using a
single IC.
AlphaKey
TM
keyboard manager
enables matrix programming
Support of up to 8 ACPI GPE
interrupt inputs
100% compatible with the ACPI
specifications
SMBus compatible host complies
with version 1.0 of the SBS/SMBus
specifications
Firmware filters any dangerous
SMBus commands
Offers an Internal Virtual SMBus
Device (IVSD), GPIO, and 10-bit
A/D
Three-volt and five-volt operation
Supports active PS/2 muliplexing
with an appropriate driver
Acts as an 8042 HID and ACPI
embedded controller (EC)
Typically consumes less than 1μA
Two external PS/2 ports for external
keyboard and mouse with auto-
detect and hot-plug support
Patented extremely low-power
operation of all PS/2 ports and the
SMBus port – an industry first
Simultaneous operation of external
and internal input devices
AlphaMouse
TM
Pointing Devices
Manager provides Mousewheel
support – a first for an EC
Acts as a keyboard controller and
encoder for an 8 x 16 keyboard
matrix; supports all three keyboard
scan code sets
1
80
61
20
21
40
41
60
IVSD20/AN0
SCL0
SDA0
PS21CLK
PS20CLK
IMCLK
PS21DAT
PS20DAT
IMDAT
GIO13/DA2/PWM2
GIO12/DA1/PWM1
GIO37/GPE7/DOCK
GIO36/GPE6/LID
IOW
IOR
8042S
A2
ACPIS
SCI
KBINIT
A
I
I
C
R
S
S
X
X
V
G
G
G
I
R
R
R
R
C
C
G
G
D
D
D
D
D
D
D
D
V
V
A
R
R
R
R
S
G
G
GIO32/GPE2/PWBUTTON
GIO33/GPE3/PWBOVERRIDE
GIO34/GPE4
GIO35/GPE5
SMBINT
KEYWKUP
COL0
COL1
COL2
COL3
COL4
COL5
COL6
COL7
COL8
COL9
COL10
COL11
COL12
COL13
UR8HC342-FQ
APPLICATIONS
PIN ASSIGNMENTS
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| UR8HC342-FQ | 制造商:SEMTECH 制造商全稱:Semtech Corporation 功能描述:USAR ACPITrollerTM 342 Robust 8042 Keyboard / ACPI-Embedded Controller |
| UR8HC342-XX-FQ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:KEYBOARD CONTROLLER |
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