FM75M8 Fairchild Semiconductor, FM75M8 Datasheet - Page 14

• Manufacturer Part Number: FM75M8
• Description: TEMPERATURE SENSOR LV 8SOIC
• Manufacturer: Fairchild Semiconductor

Specifications of FM75M8

• Function: Temp Monitoring System (Sensor)
• Topology: ADC (Sigma Delta), Comparator, Register Bank
• Sensor Type: Internal
• Sensing Temperature: -40°C ~ 125°C
• Output Type: SMBus™
• Output Alarm: Yes
• Output Fan: No
• Voltage - Supply: 2.7 V ~ 5.5 V
• Operating Temperature: -40°C ~ 125°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Full Temp Accuracy: 4 C
• Digital Output - Bus Interface: I2C, SMBus
• Digital Output - Number Of Bits: 9 bit to 12 bit
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 2.7 V
• Description/function: Semiconductor
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Supply Current: 500 uA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

© 2006 Fairchild Semiconductor Corporation
FM75 Rev. 1.0.8
Timing Diagrams
SDA
SDA
SCL
SCL
SDA
SCL
S
Figure 14. Pointer Set Followed by Immediate Write to A 2-byte Register (T
S
1
S
1
0
1
Figure 16. Pointer Set Followed by Immediate Write to the Configuration Register
Figure 15. Pointer Set Followed by Immediate Read from Configuration Register
0
. . . .
. . . .
0
0
0
Address Byte
Address Byte
1
1
0
Address Byte
. . . .
. . . .
(Continued)
A2
A2
1
A
A1
A1
A2
D7
A0
A0
A1
1
Most Significant Data Byte
D6
R/W
R/W
once in the actual sequence)
A0
FM75
D5
from
FM75
0
Ack
from
clarity, transmitted only
Ack
A
(from Master)
A
R/W
(repeated here for
0
D4
Address Byte
0
0
FM75
from
Ack
1
A
0
D3
0
A2
0
Pointer Byte
D2
0
0
Pointer Byte
A1
0
0
D1
14
0
A0
0
0
0
D0
Pointer Byte
R/W
0
FM75
from
0
Ack
0
FM75
A
from
Ack
P1
A
P1
0
D7
P0
X
P0
FM75
Least Significant Data Byte
from
Ack
D6
0
D6
A
FM75
from
Ack
A
P1
D5
X
D5
Repeat Start
(from Master)
(from FM75)
Master
from
Data Byte
S
D6 D5 D4
P0
D4
D4
1
FM75
(from Master)
from
D3
Ack
OS
A
Data Byte
0
0
or T
D2
. . . .
. . . .
0
D3
0
Address Byte
D1
HYST
D2
0
1
D0
Register)
A2
D1 D0
0
No Ack
Master
from
N
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FM75
A1
from
Ack
A
P
FM75
from
Ack
A0
A
P
P
R/W