?Semiconductor Components Industries, LLC, 2012
July, 2012 Rev. 5
1
Publication Order Number:
ADT7488A/D
ADT7488A
SST Digital Temperature
Sensor and Voltage Monitor
The ADT7488A is a simple digital temperature sensor for use in PC
applications with Simple Serial Transport (SST) interface. It can
monitor its own temperature as well as the temperature of two remote
sensor diodes. It also measures the processor core voltage, V
CCP
; a
2.5 V supply voltage; and its own supply voltage, V
CC
. The
ADT7488A is controlled by an SST single bidirectional data line. This
device is a fixed-address SST client where the target address is chosen
by the state of the address pin, ADD.
Features
?SPAN class="pst ADT7488AARMZ-RL_2296718_4"> 1 On-Chip Temperature Sensor
?SPAN class="pst ADT7488AARMZ-RL_2296718_4"> 2 Remote Temperature Sensors
?SPAN class="pst ADT7488AARMZ-RL_2296718_4"> Monitors 3 Voltage Inputs, Including V
CC
?SPAN class="pst ADT7488AARMZ-RL_2296718_4"> Simple Serial Transport (SST) Interface
?SPAN class="pst ADT7488AARMZ-RL_2296718_4"> This Device is Pb-Free, Halogen Free and is RoHS Compliant
Applications
?SPAN class="pst ADT7488AARMZ-RL_2296718_4"> Personal Computers
?SPAN class="pst ADT7488AARMZ-RL_2296718_4"> Portable Personal Devices
?SPAN class="pst ADT7488AARMZ-RL_2296718_4"> Industrial Sensor Nets
Figure 1. Functional Block Diagram
GND
D1
D1+
2.5 V
V
CCP
V
CC
ON-CHIP
TEMPERATURE
SENSOR
INPUT
ATTENUATORS
AND
ANALOG
MULTIPLEXER
A/D
CONVERTER
TEMPERATURE
VALUE REGISTERS
VOLTAGE
VALUE REGISTERS
ADDRESS
SELECTION
OFFSET
REGISTERS
SST
INTERFACE
ADT7488A
ADD
SST
D2
D2+
MARKING DIAGRAM
http://onsemi.com
PIN ASSIGNMENT
MSOP10
CASE 846AC
See detailed ordering and shipping information in the package
dimensions section on page 12 of this data sheet.
ORDERING INFORMATION
T24
AYWG
G
1
10
T24 = Specific Device Code
A
= Assembly Location
Y
= Year
W = Work Week
G
= Pb-Free Package
(Note: Microdot may be in either location)
2.5 V
SST
ADD
V
CCP
D2
V
CC
GND
D1+
D1
D2+
10
9
8
7
6
5
4
3
2
1
ADT7488A
(Top View)
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