LM95245CIM/NOPB National Semiconductor, LM95245CIM/NOPB Datasheet - Page 6

• Manufacturer Part Number: LM95245CIM/NOPB
• Description: IC TEMP SENSE DIGITAL W/TT 8SOIC
• Manufacturer: National Semiconductor
• Series: TruTherm®r

Specifications of LM95245CIM/NOPB

• Function: Hardware Monitor
• Topology: ADC (Sigma Delta), Comparator, Register Bank
• Sensor Type: External & Internal
• Sensing Temperature: -40°C ~ 85°C, External Sensor
• Output Type: SMBus™
• Output Alarm: Yes
• Output Fan: Yes
• Voltage - Supply: 3 V ~ 3.6 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• For Use With: LM95245EB - BOARD EVALUATION FOR LM95245
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: LM95245CIM

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f
t
t
t
t
t
t
t
t
t
t
t
t
SMB
LOW
HIGH
R,SMB
F,SMB
OF
TIMEOUT
SU;DAT
HD;DAT
HD;STA
SU;STO
SU;STA
BUF
Symbol
SMBus Digital Switching Characteristics
Unless otherwise noted, these specifications apply for V
Boldface limits apply for T
The switching characteristics of the LM95245 fully meet or exceed the published specifications of the SMBus version 2.0. The
following parameters are the timing relationships between SMBCLK and SMBDAT signals related to the LM95245. They adhere
to, but are not necessarily, the SMBus specifications.
SMBus Clock Frequency
SMBus Clock Low Time
SMBus Clock High Time
SMBus Rise Time
SMBus Fall Time
Output Fall Time
SMBDAT and SMBCLK Time Low for Reset of Serial
Interface (Note 14)
Data In Setup Time to SMBCLK High
Data Out Stable after SMBCLK Low
Start Condition SMBDAT Low to SMBCLK Low (Start
condition hold before the first clock falling edge)
Stop Condition SMBCLK High to SMBDAT Low (Stop
Condition Setup)
SMBus Repeated Start-Condition Setup Time,
SMBCLK High to SMBDAT Low
SMBus Free Time Between Stop and Start Conditions
A
= T
Parameter
J
= T
MIN
to T
MAX
; all other limits T
SMBus Communication
DD
= +3.0 Vdc to +3.6 Vdc, C
6
from V
from V
(Note 12)
(Note 13)
C
I
O
L
= 3 mA, (Note 13)
A
= 400 pF,
= T
IN(0)
IN(1)
J
= +25°C, unless otherwise noted.
max to V
min to V
Conditions
IN(1)
IN(0)
L
(load capacitance) on output lines = 80 pF.
min
max
(Note 6) (Note 7)
Typical
0.3
1
Limits
1075
100
250
250
300
100
100
4.7
4.0
0.6
1.3
10
25
25
35
30015109
kHz (min)
ms (max)
ms (max)
µs (max)
µs (max)
ns (max)
ms (min)
ns (max)
µs (min)
µs (min)
ns (min)
ns (min)
ns (min)
ns (min)
µs (min)
µs (min)
(Limit)
Units
(max)
kHz