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參數(shù)資料
| 型號(hào)： | LM99CIMM |
| 廠商： | National Semiconductor Corporation |
| 元件分類(lèi)： | 溫度/濕度傳感器 |
| 英文描述： | 【1C Accurate, High Temperature, Remote Diode Temperature Sensor with Two-Wire Interface |
| 中文描述： | 【集成電路準(zhǔn)確，高溫，遠(yuǎn)程二極管溫度傳感器，兩線接口 |
| 文件頁(yè)數(shù)： | 5/20頁(yè) |
| 文件大小： | 349K |
| 代理商： | LM99CIMM |
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Logic Electrical Characteristics
DIGITAL DC CHARACTERISTICS
Unless otherwise noted, these specifications apply for V
= +3.0 to 3.6 Vdc.
Boldface
limits apply for T
A
= T
J
= T
MIN
to T
MAX
;
all other limits T
A
= T
J
= +25C, unless otherwise noted.
Symbol
Parameter
Conditions
Typical
(Note 6)
Limits
(Note 7)
Units
(Limit)
SMBData, SMBCLK INPUTS
V
IN(1)
V
IN(0)
V
IN(HYST)
Logical “1” Input Voltage
Logical “0”Input Voltage
SMBData and SMBCLK Digital
Input Hysteresis
Logical “1” Input Current
Logical “0” Input Current
Input Capacitance
2.1
0.8
V (min)
V (max)
mV
400
I
IN(1)
I
IN(0)
C
IN
ALL DIGITAL OUTPUTS
I
OH
V
OL
V
IN
= V
DD
V
IN
= 0 V
0.005
0.005
5
±
10
±
10
μA (max)
μA (max)
pF
High Level Output Current
SMBus Low Level Output Voltage
V
OH
= V
DD
I
OL
= 4 mA
I
OL
= 6 mA
10
0.4
0.6
μA (max)
V (max)
SMBus Digital Switching Characteristics
Unless otherwise noted, these specifications apply for V
DD
= +3.0 Vdc to +3.6 Vdc, C
(load capacitance) on output lines = 80
pF.
Boldface limits apply for T
= T
= T
to T
;
= T
= +25C, unless otherwise noted. The switch-
ing characteristics of the LM99 fully meet or exceed the published specifications of the SMBus version 2.0. The following pa-
rameters are the timing relationships between SMBCLK and SMBData signals related to the LM99. They adhere to but are not
necessarily the SMBus bus specifications.
Symbol
Parameter
Conditions
Typical
(Note 6)
Limits
(Note 7)
100
10
4.7
25
4.0
Units
(Limit)
kHz (max)
kHz (min)
μs (min)
ms (max)
μs (min)
μs (max)
μs (max)
ns (max)
f
SMB
SMBus Clock Frequency
t
LOW
SMBus Clock Low Time
from V
IN(0)
max to
V
IN(0)
max
from V
IN(1)
min to V
IN(1)
min
(Note 12)
(Note 13)
C
L
= 400 pF,
I
O
= 3 mA, (Note 13)
t
HIGH
t
R,SMB
t
F,SMB
t
OF
SMBus Clock High Time
SMBus Rise Time
SMBus Fall Time
Output Fall Time
1
0.3
250
t
TIMEOUT
SMBData and SMBCLK Time Low for
Reset of Serial Interface (Note 14)
Data In Setup Time to SMBCLK High
Data Out Stable after SMBCLK Low
25
35
250
300
900
100
ms (min)
ms (max)
ns (min)
ns (min)
ns (max)
ns (min)
t
SU;DAT
t
HD;DAT
t
HD;STA
Start Condition SMBData Low to SMBCLK
Low (Start condition hold before the first
clock falling edge)
Stop Condition SMBCLK High to SMBData
Low (Stop Condition Setup)
SMBus Repeated Start-Condition Setup
Time, SMBCLK High to SMBData Low
SMBus Free Time Between Stop and Start
Conditions
t
SU;STO
100
ns (min)
t
SU;STA
0.6
μs (min)
t
BUF
1.3
μs (min)
L
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