ADT7481ARMZ-1RL ON Semiconductor, ADT7481ARMZ-1RL Datasheet - Page 12

• Manufacturer Part Number: ADT7481ARMZ-1RL
• Description: IC SENSOR TEMP 2CH ALARM 10MSOP
• Manufacturer: ON Semiconductor

Specifications of ADT7481ARMZ-1RL

• Function: Temp Monitoring System (Sensor)
• Topology: ADC, Comparator, Multiplexer, Register Bank
• Sensor Type: External & Internal
• Sensing Temperature: -40°C ~ 120°C, External Sensor
• Output Type: SMBus™
• Output Alarm: Yes
• Output Fan: Yes
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: -40°C ~ 120°C
• Mounting Type: Surface Mount
• Package / Case: 10-MSOP, Micro10™, 10-uMAX, 10-uSOP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: ADT7481ARMZ-1REEL; ADT7481ARMZ-1REEL

Consecutive ALERT Register
out−of−limit measurements must occur before an ALERT is
generated. The default value is that one out−of−limit
measurement generates an ALERT. The maximum value
that can be chosen is 4.
some filtering of the output. This is particularly useful at the
fastest three conversion rates, where no averaging takes
place. This register is at Address 0x22. This register has
other functions that are listed in Table 10.
Table 11. List of Registers
The value written to this register determines how many
The purpose of this register is to allow the user to perform
Address
Read
(Hex)
N/A
N/A
00
01
01
02
03
04
05
06
07
07
08
08
10
10
12
12
13
13
14
14
19
19
20
11
11
Address
(Note 1)
Write
(Hex)
N/A
N/A
N/A
N/A
N/A
N/A
N/A
0C
0D
0D
09
0A
0B
0E
0E
0F
12
12
13
13
14
14
19
19
20
11
11
Address Pointer
Local Temperature Value
Remote 1 Temperature Value High Byte
Remote 2 Temperature Value High Byte
Status Register 1
Configuration Register 1
Conversion Rate/Channel Selector
Local Temperature High Limit
Local Temperature Low Limit
Remote 1 Temp High Limit High Byte
Remote 2 Temp High Limit High Byte
Remote 1 Temp Low Limit High Byte
Remote 2 Temp Low Limit High Byte
One−Shot
Remote 1 Temperature Value Low Byte
Remote 2 Temperature Value Low Byte
Remote 1 Temperature Offset High Byte
Remote 2 Temperature Offset High Byte
Remote 1 Temperature Offset Low Byte
Remote 2 Temperature Offset Low Byte
Remote 1 Temp High Limit Low Byte
Remote 2 Temp High Limit Low Byte
Remote 1 Temp Low Limit Low Byte
Remote 2 Temp Low Limit Low Byte
Remote 1 THERM Limit
Remote 2 THERM Limit
Local THERM Limit
Mnemonic
http://onsemi.com
12
Table 10. Consecutive ALERT Register Bit
<3:0>
Bit
7
6
5
4
Undefined
0000 0000 (0x00)
0000 0000 (0x00)
0000 0000 (0x00)
Undefined
0000 0000 (0x00)
0000 0111 (0x07)
0101 0101 (0x55) (85°C)
0000 0000 (0x00) (0°C)
0101 0101 (0x55) (85°C)
0101 0101 (0x55) (85°C)
0000 0000 (0x00) (0°C)
0000 0000 (0x00) (0°C)
0000 0000
0000 0000
0000 0000
0000 0000
0000 0000
0000 0000
0000 0000
0000 0000
0000 0000
0000 0000
0101 0101 (0x55) (85°C)
0101 0101 (0x55) (85°C)
0101 0101 (0x55) (85°C)
Power−On Default
Consecutive
Mask Local
Timeout
Timeout
ALERT
Name
SDA
SCL
Res
Set to 1, enables the SMBus SCL
timeout bit. Default = 0 = timeout
disabled. See the Serial Bus Interface
section for more information.
Set to 1 to enable the SMBus SDA
Timeout Bit. Default = 0 = Timeout
disabled. See the Serial Bus Interface
section for more information.
Setting this bit to 1 masks
due to the local temperature
exceeding a programmed limit.
Default = 0.
Reserved for future use.
These bits set the number of
consecutive out−of−limit
measurements that have to occur
before an
000x = 1
001x = 2
011x = 3
111x = 4
Bit 3 Conf Reg = 0
Bit 3 Conf Reg = 1
Bit 3 Conf Reg = 0
Bit 3 Conf Reg = 1
Bit 3 Conf Reg = 0
Bit 3 Conf Reg = 1
Bit 3 Conf Reg = 0
Bit 3 Conf Reg = 1
Bit 3 Conf Reg = 0
Bit 3 Conf Reg = 1
Bit 3 Conf Reg = 0
Bit 3 Conf Reg = 1
Bit 3 Conf Reg = 0
Bit 3 Conf Reg = 1
Bit 3 Conf Reg = 0
Bit 3 Conf Reg = 1
Bit 3 Conf Reg = 0
Bit 3 Conf Reg = 1
ALERT
Description
Comment
is generated.
ALERT
Lock
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
N/A
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
Yes
No
No
No
No
No
No
No
s