ADM1032AR

Manufacturer Part NumberADM1032AR
DescriptionIC TEMP MONITOR 85DEG C 8SOIC
ManufacturerON Semiconductor
ADM1032AR datasheet
 

Specifications of ADM1032AR

Rohs StatusRoHS non-compliantFunctionTemp Monitoring System (Sensor)
TopologyADC, Comparator, Multiplexer, Register BankSensor TypeExternal & Internal
Sensing Temperature0°C ~ 100°C, External SensorOutput TypeSMBus™
Output AlarmYesOutput FanYes
Voltage - Supply3 V ~ 5.5 VOperating Temperature0°C ~ 100°C
Mounting TypeSurface MountPackage / Case8-SOIC (3.9mm Width)
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Table 7. Consecutive ALERT Register Codes
Register Value
Number of Out−of−Limit
Measurements Required
yxxx 000x
yxxx 001x
yxxx 011x
yxxx 111x
NOTE:
x = don’t care bits, and y = SMBus timeout bit.
Default = 0. See SMBus section for more information.
Table 8. List of ADM1032 Registers
Read Address (Hex)
Write Address (Hex)
Not Applicable
Not Applicable
00
Not Applicable
01
Not Applicable
02
Not Applicable
03
09
04
0A
05
0B
06
0C
07
0D
08
0E
Not Applicable
0F
10
Not Applicable
11
11
12
12
13
13
14
14
19
19
20
20
21
21
22
22
FE
Not Applicable
FF
Not Applicable
NOTE:
Writing to Address 0F causes the ADM1032 to perform a single measurement. It is not a data register as such and it does not
matter what data is written to it.
Addressing the Device
In general, every SMBus device has a 7−bit device address
(except for some devices that have extended, 10−bit
addresses). When the master device sends a device address
over the bus, the slave device with that address responds.
The ADM1032 and the ADM1032−1 are available with one
SMBus address, which is Hex 4C (1001 100). The
ADM1032−2 is also available with one SMBus address;
however, that address is Hex 4D (1001 101).
Serial Bus Interface
Control of the ADM1032 is carried out via the serial bus.
The ADM1032 is connected to this bus as a slave device,
under the control of a master device.
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There is a programmable SMBus timeout. When this is
enabled, the SMBus times out after typically 25 ms of no
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activity. However, this feature is not enabled by default. To
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enable it, set Bit 7 of the consecutive alert register
4
(Address = 22h).
Name
Address Pointer
Local Temperature Value
External Temperature Value High Byte
Status
Configuration
Conversion Rate
Local Temperature High Limit
Local Temperature Low Limit
External Temperature High Limit High Byte
External Temperature Low Limit High Byte
One−Shot
External Temperature Value Low Byte
External Temperature Offset High Byte
External Temperature Offset Low Byte
External Temperature High Limit Low Byte
External Temperature Low Limit Low Byte
External THERM Limit
Local THERM Limit
THERM Hysteresis
Consecutive ALERT
Manufacturer ID
Die Revision Code
The serial bus protocol operates as follows:
1. The master initiates data transfer by establishing a
START condition, defined as a high−to−low
transition on the serial data line SDATA, while the
serial clock line SCLK remains high. This
indicates that an address/data stream follows. All
slave peripherals connected to the serial bus
respond to the START condition and shift in the
next eight bits, consisting of a 7−bit address (MSB
first) plus an R/W bit, which determines the
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Power−On Default
Undefined
0000 0000 (00h)
0000 0000 (00h)
Undefined
0000 0000 (00h)
0000 1000 (08h)
0101 0101 (55h) (85°C)
0000 0000 (00h) (0°C)
0101 0101 (55h) (85°C)
0000 0000 (00h) (0°C)
0000 0000
0000 0000
0000 0000
0000 0000
0000 0000
0101 0101 (55h) (85°C) (ADM1032)
0110 1100 (6Ch) (108°C)
(ADM1032−1)
0101 0101 (55h) (85°C)
0000 1010 (0Ah) (10°C)
0000 0001 (01h)
0100 0001 (41h)
Undefined