ADT7484A(2012) データシートの表示（PDF） - ON Semiconductor
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ADT7484A Datasheet PDF : 14 Pages
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ADT7484A/ADT7486A
Digital Temperature Sensor
with SST Interface
The ADT7484A/ADT7486A are simple digital temperature sensors
for use in PC applications with a Simple Serial Transport (SST)
interface. These devices can monitor their own temperature as well as
the temperature of one (ADT7484A) or two (ADT7486A) remote
sensor diodes. The ADT7484A/ADT7486A are controlled by a single
SST bidirectional data line. The devices are fixed-address SST clients
where the target address is chosen by the state of the two address pins,
ADD0 and ADD1.
Features
1 On-Chip Temperature Sensor
1 or 2 Remote Temperature Sensors
Simple Serial Transport (SST) Interface Rev 1 Compliant
These Devices are Pb-Free and are RoHS Compliant
Applications
Personal Computers
Portable Personal Devices
Industrial Sensor Nets
ON-CHIP
TEMPERATURE
SENSOR
LOCAL TEMP
VALUE REGISTER
D1+
D1−
ANALOG
A/D
D2+
MUX
CONVERTER
D2−
REMOTE TEMP
VALUE REGISTER
OFFSET
REGISTERS
ADT7484A/
ADT7486A
SST
INTERFACE
ADDRESS
SELECTION
VCC
GND
RESERVED
ADD0 ADD1 SST
ADT7486A ONLY
Figure 1. Functional Block Diagram
Semiconductor Components Industries, LLC, 2012
1
July, 2012 − Rev. 5
http://onsemi.com
SOIC−8
CASE 751
MSOP−8
MSOP−10
CASE 846AB CASE 846AC
PIN ASSIGNMENTS
VCC 1
8 SST
GND 2 ADT7484A 7 ADD0
D1+ 3 (Top View) 6 RESERVED
D1− 4
5 ADD1
VCC 1
10 SST
GND 2
9 ADD0
D1+
3
ADT7486A
(Top View)
8
RESERVED
D1− 4
7 ADD1
D2+ 5
6 D2−
MARKING DIAGRAMS
8
T7484A
ALYWG
G
1
SOIC−8
T7484A = Specific Device Code
A
= Assembly Location
L
= Wafer Lot
Y
= Year
W
= Work Week
G
= Pb-Free Package
8
10
T20
AYWG
G
T22
AYWG
G
1
1
MSOP−8
MSOP−10
T2x = Specific Device Code
A = Assembly Location
Y = Year
W = Work Week
G = Pb-Free Package
(Note: Microdot may be in either location)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 11 of this data sheet.
Publication Order Number:
ADT7484A−86A/D
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