LM95231_06 NSC [National Semiconductor], LM95231_06 Datasheet - Page 6

• Manufacturer Part Number: LM95231_06
• Description: Precision Dual Remote Diode Temperature Sensor with SMBus Interface and TruTherm Technology
• Manufacturer: NSC [National Semiconductor]

www.national.com
Symbol
t
t
t
t
Logic Electrical Characteristics
SMBus Digital Switching Characteristics
HD;DAT
SU;STO
HD;STA
SU;STA
Unless otherwise noted, these specifications apply for V
pF. Boldface limits apply for T
characteristics of the LM95231 fully meet or exceed the published specifications of the SMBus version 2.0. The following pa-
rameters are the timing relationships between SMBCLK and SMBDAT signals related to the LM95231. They adhere to but are
not necessarily the SMBus bus specifications.
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is
guaranteed to be functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics.
The guaranteed specifications apply only for the test condition listed. Some performance characteristics may degrade when the device is not operated under the
listed test conditions. Operation of the device beyond the Maximum Operating Ratings is not recommended.
Note 2: When the input voltage (V
Parasitic components and or ESD protection circuitry are shown in the figures below for the LM95231’s pins. Care should be taken not to forward bias the parasitic
diode, D1, present on pins: D1+, D2+, D1−, D2−. Doing so by more than 50 mV may corrupt the temperature measurements.
t
BUF
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
Parameter
I
) at any pin exceeds the power supplies (V
A
= T
J
= T
MIN
to T
SMBus Communication
MAX
(Continued)
; all other limits T
DD
=+3.0 Vdc to +3.6 Vdc, C
I
<
6
GND or V
Conditions
(Continued)
A
I
>
= T
V
DD
J
), the current at that pin should be limited to 5 mA.
= +25˚C, unless otherwise noted. The switching
L
(load capacitance) on output lines = 80
(Note 6)
Typical
(Note 7)
Limits
1075
300
100
100
0.6
1.3
20120209
ns (max)
ns (min)
ns (min)
ns (min)
µs (min)
µs (min)
(Limit)
Units