ADM1032AR ON Semiconductor, ADM1032AR Datasheet - Page 10

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ADM1032AR

Manufacturer Part Number
ADM1032AR
Description
IC TEMP MONITOR 85DEG C 8SOIC
Manufacturer
ON Semiconductor
Datasheet

Specifications of ADM1032AR

Rohs Status
RoHS non-compliant
Function
Temp Monitoring System (Sensor)
Topology
ADC, Comparator, Multiplexer, Register Bank
Sensor Type
External & Internal
Sensing Temperature
0°C ~ 100°C, External Sensor
Output Type
SMBus™
Output Alarm
Yes
Output Fan
Yes
Voltage - Supply
3 V ~ 5.5 V
Operating Temperature
0°C ~ 100°C
Mounting Type
Surface Mount
Package / Case
8-SOIC (3.9mm Width)

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Addressing the Device
(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).
Table 7. Consecutive ALERT Register Codes
NOTE:
Table 8. List of ADM1032 Registers
NOTE:
Read Address (Hex)
Not Applicable
00
01
02
03
04
05
06
07
08
Not Applicable
10
11
12
13
14
19
20
21
22
FE
FF
In general, every SMBus device has a 7−bit device address
Register Value
yxxx 000x
yxxx 001x
yxxx 011x
yxxx 111x
x = don’t care bits, and y = SMBus timeout bit.
Default = 0. See SMBus section for more information.
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.
Write Address (Hex)
Not Applicable
Not Applicable
Not Applicable
Not Applicable
09
0A
0B
0C
0D
0E
0F
Not Applicable
11
12
13
14
19
20
21
22
Not Applicable
Not Applicable
Number of Out−of−Limit
Measurements Required
1
2
3
4
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
http://onsemi.com
10
Name
Serial Bus Interface
The ADM1032 is connected to this bus as a slave device,
under the control of a master device.
enabled, the SMBus times out after typically 25 ms of no
activity. However, this feature is not enabled by default. To
enable it, set Bit 7 of the consecutive alert register
(Address = 22h).
Control of the ADM1032 is carried out via the serial bus.
There is a programmable SMBus timeout. When this is
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
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
Power−On Default

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