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参数资料
型号： LM80CIMTX-32
厂商： National Semiconductor Corporation
英文描述： Serial Interface ACPI-Compatible Microprocessor System Hardware Monitor
中文描述： 串行接口ACPI的兼容微处理器系统硬件监视器
文件页数： 25/29页
文件大小： 412K
代理商： LM80CIMTX-32
DC Electrical Characteristics (Continued)
The following specifications apply for +2.8 V
DC ≤V
+
≤ +3.8 V
DC for LM80CIMT-3, +4.25 VDC ≤V
+
≤ +5.75 V
DC for LM80CIMT-5,
IN0-IN6 R
S = 25, unless otherwise specified. Boldface limits apply for TA = TJ = TMIN to TMAX; all other limits TA = TJ =
25C.(Note 7)
Symbol
Parameter
Conditions
Typical
Limits
Units
(Note 8)
(Note 9)
(Limits)
FAN RPM-to-DIGITAL CONVERTER
Fan RPM Error
+25C
≤ T
A ≤ +75C
±10
% (max)
10C
≤ T
A ≤ +100C
±15
% (max)
25C
≤ T
A ≤ +125C
±20
% (max)
Full-scale Count
255
(max)
FAN1 and FAN2 Nominal Input
RPM (See
Section 6.0)
Divisor = 1, Fan Count = 153
(Note 12)
8800
RPM
Divisor = 2, Fan Count = 153
(Note 12)
4400
RPM
Divisor = 3, Fan Count = 153
(Note 12)
2200
RPM
Divisor = 4, Fan Count = 153
(Note 12)
1100
RPM
Internal Clock Frequency
+25C
≤ T
A ≤ +75C
22.5
20.2
kHz (min)
24.8
kHz (max)
10C
≤ T
A ≤ +100C
22.5
19.1
kHz (min)
25.9
kHz (max)
25C
≤ T
A ≤ +125C
22.5
18
kHz (min)
27
kHz (max)
DIGITAL OUTPUTS: A0/NTEST_OUT, INT
V
OUT(1)
Logical “1” Output Voltage
I
OUT = +5.0 mA at
V
+ = +4.25V, I
OUT = +3.0 mA
at V
+ = +2.8V
2.4
V (min)
V
OUT(0)
Logical “0” Output Voltage
I
OUT = 5.0 mA at
V
+ = +5.75V, I
OUT = 3.0 mA
at V
+ = +3.8V
0.4
V (max)
OPEN DRAIN OUTPUTS: GPO, RST_OUT/OS, CI
V
OUT(0)
Logical “0” Output Voltage
I
OUT = 5.0 mA
at V
+ = +5.75V,
I
OUT = 3.0 mA at V
+ = +3.8V
0.4
V (min)
I
OH
High Level Output Current
V
OUT = V
+
0.1
100
A (max)
RST_OUT/OS, CI
30
10
ms (min)
Pulse Width
OPEN DRAIN SERIAL BUS OUTPUT: SDA
V
OUT(0)
Logical “0” Output Voltage
I
OUT = 3.0 mA at
V
+
= +5.75V, I
OUT = 3.0 mA
at V
+ = +3.8V
0.4
V (min)
I
OH
High Level Output Current
V
OUT = V
+
0.1
100
A (max)
DIGITAL INPUTS: A0/NTEST_Out, A1-A2, BTI, CI (Chassis Intrusion), INT_IN, and NTEST_IN/Reset_IN
V
IN(1)
Logical “1” Input Voltage
2.0
V (min)
V
IN(0)
Logical “0” Input Voltage
0.8
V (max)
SERIAL BUS INPUTS (SCL, SDA) and FAN TACH PULSE INPUTS (FAN1, FAN2)
V
IN(1)
Logical “1” Input Voltage
0.7xV
+
V (min)
V
IN(0)
Logical “0” Input Voltage
0.3xV
+
V (max)
ALL DIGITAL INPUTS Except for BTI
I
IN(1)
Logical “1” Input Current
V
IN = V
+
0.005
1
A (min)
I
IN(0)
Logical “0” Input Current
V
IN = 0VDC
0.005
1
A (max)
C
IN
Digital Input Capacitance
20
pF
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