ADT7461AARMZ-002 ON Semiconductor, ADT7461AARMZ-002 Datasheet - Page 3
![no-image](/images/manufacturer_photos/0/4/495/on_semiconductor_sml.jpg)
ADT7461AARMZ-002
Manufacturer Part Number
ADT7461AARMZ-002
Description
IC TEMP SENSOR DGTL 2CH 8-MSOP
Manufacturer
ON Semiconductor
Specifications of ADT7461AARMZ-002
Function
Temp Monitoring System (Sensor)
Topology
ADC, Comparator, Multiplexer, Register Bank
Sensor Type
External & Internal
Sensing Temperature
0°C ~ 127°C, External Sensor
Output Type
SMBus™
Output Alarm
Yes
Output Fan
Yes
Voltage - Supply
3 V ~ 3.6 V
Operating Temperature
-40°C ~ 125°C
Mounting Type
Surface Mount
Package / Case
8-MSOP, Micro8™, 8-uMAX, 8-uSOP,
Full Temp Accuracy
+/- 2.5 C
Digital Output - Bus Interface
Serial (2-Wire)
Maximum Operating Temperature
+ 125 C
Minimum Operating Temperature
- 40 C
Temperature Sensor Function
Temp Sensor
Interface Type
Serial (2-Wire)
Package Type
MSOP
Operating Temperature (min)
-40C
Operating Temperature (max)
125C
Operating Temperature Classification
Automotive
Operating Supply Voltage (min)
3V
Operating Supply Voltage (typ)
3.3V
Operating Supply Voltage (max)
3.6V
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
1. Guaranteed by design, but not production tested.
2. Time from 10% of SDATA to 90% of SCLK.
3. Time for 10% or 90% of SDATA to 10% of SCLK.
4. Time for 90% of SCLK to 10% of SDATA.
PIN ASSIGNMENT
SMBus TIMING SPECIFICATIONS
Pin No.
t
t
t
HD; STA
SU; DAT
SU; STO
1
2
3
4
5
6
7
8
Parameter
SDATA
t
t
SCLK
HD; DAT
SU; STA
f
t
t
SCLK
t
HIGH
LOW
BUF
t
t
R
F
(Note 2)
(Note 3)
(Note 4)
ALERT/THERM2
STOP START
Mnemonic
t
THERM
SDATA
BUF
SCLK
GND
V
D+
D−
DD
Limit at T
t
t
LOW
HD;STA
MIN
400
300
300
600
600
100
300
600
1.3
0.6
1.3
Positive Supply, 3.0 V to 5.5 V.
Positive Connection to Remote Temperature Sensor.
Negative Connection to Remote Temperature Sensor.
Open−drain output that can be used to turn a fan on/off or throttle a CPU clock in the event of an
overtemperature condition. Requires pullup to V
Supply Ground Connection.
Open−Drain Logic Output Used as Interrupt or SMBus Alert. This may also be configured as a
second THERM output. Requires pullup resistor.
Logic Input/Output, SMBus Serial Data. Open−drain output. Requires pullup resistor.
Logic Input, SMBus Serial Clock. Requires pullup resistor.
t
HD;DAT
and T
(Note 1)
t
R
MAX
Figure 2. Serial Bus Timing
t
F
t
HIGH
kHz max
http://onsemi.com
ns max
ns max
ms min
ms min
ns min
ns min
ns min
ns min
ns min
ms min
t
SU;DAT
Unit
3
−
Clock low period, between 10% points.
Clock high period, between 90% points.
Clock/data rise time.
Clock/data fall time.
Start condition setup time.
Start condition hold time.
Data setup time.
Data hold time.
Stop condition setup time.
Bus free time between stop and start conditions.
Description
START
DD
t
.
SU;STA
t
HD;STA
Description
t
SU;STO
STOP