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參數(shù)資料
| 型號： | MC1066 |
| 廠商： | ON SEMICONDUCTOR |
| 英文描述： | Hex Inverter Buffers/Drivers With Open-Collector High-Voltage Outputs 14-CDIP -55 to 125 |
| 中文描述： | 符合ACPI的SMBus溫度傳感器內(nèi)部和外部二極管輸入 |
| 文件頁數(shù)： | 1/16頁 |
| 文件大?。?/td> | 196K |
| 代理商： | MC1066 |
Semiconductor Components Industries, LLC, 1999
February, 2000 – Rev. 0
1
Publication Order Number:
MC1066/D
The MC1066 is a serially programmable temperature sensor
optimized for monitoring modern high performance CPUs with
on–board integrated temperature sensing diodes. Temperature data is
converted from the CPU’s diode outputs and made available as an
8–bit digital word.
Communication with the MC1066 is accomplished via the standard
System Management Bus (SMBus) commonly used in modern
computer systems. This permits reading the current internal/external
temperature, programming the threshold setpoints, and configuring
the device. Additionally, an interrupt is generated on the
ALERT/COMP pin when temperature moves outside the preset
threshold windows in either direction. A separate CRITICAL setpoint
is provided through external hardwiring for “fail safe” operation per
ACPI guidelines.
A Standby command may be sent via the SMBus or by signaling the
STBY input pin to activate the low–power Standby mode. Registers
can be accessed while in Standby mode. Address selection inputs
allow up to nine MC1066s to share the same 2–wire SMBus for
multi–zone monitoring.
All registers can be read by the host, and both polled and interrupt
driven systems are easily accommodated. Small size, low installed
cost, and ease of use make the MC1066 an ideal choice for
implementing sophisticated system management schemes, such as
ACPI.
Features
Specifically ACPI–Compliant
Backward Compliant to Older APM Systems
Includes Internal
and
External Sensing Capability
Outputs Temperature As 8–Bit Digital Word
Solid State Temperature Sensing; 1
°
C Resolution
3.0 — 5.5V Operating Range
Independent Internal and External Threshold Set–Points With
ALERT/COMP Interrupt Output
SMBus 2–Wire Serial Interface
Optional CRITICAL Set–Point for Full ACPI Compliant
Implementation
Up To Nine MC1066s May Share the Same Bus
Low Standby Power Mode
Low Power: 70
μ
A (max) Operating, 10
μ
A (max) Standby Mode
16–Pin Plastic QSOP Package
Typical Applications
Thermal Protection For Intel “Deschutes” Pentium
II and Other High Performance
CPUs with Integrated On–Board Diode - No Sensor Mounting Problems!
Accurate Temperature Sensing From Any Silicon Junction Diode
Thermal Management in Electronic Systems: Computers, Network Equipment, Power Supplies
16–Pin QSOP
DB SUFFIX
CASE TBD
PRELIMINARY INFORMATION
http://onsemi.com
PIN CONFIGURATION
(Top View)
Device
Package
Shipping
ORDERING INFORMATION
MC1066DBR2
16–Pin QSOP
2500 Tape/Reel
MC1066
1
2
3
4
16
15
14
13
CRIT1
VDD
D+
D–
CRIT0
NC
STBY
SCL
INT_SEL
SDA
ALERT/COMP
ADD0
OS
5
6
7
8
12
11
10
9
ADD1
GND
GND
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