ASC7511 Datasheet, PDF (1/19 Pages) List of Unclassifed Manufacturers – LOW- OLTAGE 2-WIRE DIGITAL TEMPERATURE SENSOR

aSC7511
LOW-VOLTAGE 2-WIRE DIGITAL TEMPERATURE SENSOR
WITH THERMAL ALARM
Fully Released Specification
PRODUCT SPECIFICATION
Product Description
The aSC7511 is a high-precision CMOS temperature
sensor with SMBus compatible serial digital interface,
intended for use in PC thermal management applications.
The aSC7511 can measure temperature of a remote
thermal diode to an accuracy of ±1°C. Internal temperature
can be measured to ±3°C.
Communication of configuration, temperature and alarm
status takes place over the PC standard System
Management Bus (SMBus).
The aSC7511 features thermal alarm functions with a user-
programmable trip and turn-off temperatures. The THERM
output comparator can be set to control a fan while
ALERT signals that the remote or local temperature is
outside of a range of temperatures. ALERT pin may be
optionally configured as a second THERM output,
THERM2 , controlling a second fan.
The aSC7511 is available in SOP-8 and MSOP-8 surface
mount packages.
Features
• Local and remote temperature sensors
• 0.25°C resolution, ±1°C accuracy on remote diode
• 1°C resolution, ±3°C accuracy on local sensor
• Extended temperature measurement range 0°C to
+127°C (default) or –55°C to +150°C
• 2-wire SMBus serial interface with SMBus alert
• Programmable over / under temperature limits
• Offset registers for system calibration
• One or two over-temperature fail-safe THERM
outputs
• 8-lead, Pb-free, SOIC (SOP) or MSOP package
Applications
Desktop Computers – Motherboards and Graphics Cards
Laptop Computers
Pin Configuration
SOP-8 and MSOP-8
V_DD
1
8 _SCL
D+
D-
THERM
2
7
aSC7511
3
6
4
5
SDA
ALERT /
THERM2
GND
Application Diagram
3.3V
2
3
CPU
SMBus SDA ⁷
Interface SCL ⁸
1
aSC7511
4 _THERM
6 ALERT /
THERM2
Ordering Information
Part Number
Package
aSC7511D8 8-Lead SOP
Temperature Range
and Operating Voltage
-40°C to +125°C, 3.3V
aSC7511M8 8-Lead MSOP -40°C to +125°C, 3.3V
Ayww – Assembly site, year, workweek
© Andigilog, Inc. 2006
-1-
www.andigilog.com
Marking
How Supplied
aSC7511
Ayww
7511
Ayww
2500 units Tape & Reel
2500 units Tape & Reel
August 2006 - 70A04010