ADT7488A Datasheet, PDF (1/12 Pages) Analog Devices – SST Digital Temperature Sensor and Voltage Monitor

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
• 1 On−Chip Temperature Sensor
• 2 Remote Temperature Sensors
• Monitors 3 Voltage Inputs, Including V_CC
• Simple Serial Transport (SST) Interface
• These are Pb−Free Devices
Applications
• Personal Computers
• Portable Personal Devices
• Industrial Sensor Nets
http://onsemi.com
MARKING
DIAGRAM
1
MSOP−10
CASE 846AC
10
T24
AYWG
G
1
T24 = Device Code
A = Assembly Location
Y = Year
W = Work Week
G = Pb−Free Package
(Note: Microdot may be in either location)
PIN ASSIGNMENT
V_CC 1
GND 2
D1+ 3
D1– 4
D2+ 5
10 SST
9 ADD
ADT7488A ⁸ 2.5 V
7 V_CCP
6 D2–
(Top View)
ORDERING INFORMATION
See detailed ordering and shipping information in the package
dimensions section on page 11 of this data sheet.
ON−CHIP
TEMPERATURE
SENSOR
ADT7488A
OFFSET REGISTERS
V_CC
D1+
D1–
D2+
D2–
V_CCP
2.5 V
INPUT
ATTENUATORS
AND
ANALOG
MULTIPLEXER
TEMPERATURE
VALUE REGISTERS
A/D
CONVERTER
VOLTAGE
VALUE REGISTERS
SST INTERFACE
SST
ADDRESS
SELECTION
ADD
GND
Figure 1. Functional Block Diagram
© Semiconductor Components Industries, LLC, 2009
1
December, 2009 − Rev. 4
Publication Order Number:
ADT7488A/D