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參數資料
| 型號： | LM81 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Serial Interface ACPI-Compatible Microprocessor System |
| 中文描述： | 串行接口ACPI的兼容微處理器系統 |
| 文件頁數： | 4/32頁 |
| 文件大小： | 412K |
| 代理商： | LM81 |
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Absolute Maximum Ratings
(Notes 1, 2)
If Military/Aerospace specified devices are required,
please contact the National Semiconductor Sales Office/
Distributors for availability and specifications.
Positive Supply Voltage (V
+
)
Voltage on Any Input or Output Pin:
+12Vin, T_CRIT_A
A0, A1, DACOut
+2.5Vin, +3.3Vin
All other pins
Input Current at any Pin (Note 4)
Package Input Current (Note 4)
Maximum Junction Temperature
(T
J
max)
ESD Susceptibility (Note 6)
Human Body Model
Machine Model
+6.0V
0.3V to +15V
0.3V to (V
+
+ 0.3V)
(Note 3)
0.3V to +6V
±
5 mA
±
20 mA
150C
2000V
200V
Soldering Information
MTC Package (Note 7) :
Vapor Phase (60 seconds)
Infrared (15 seconds)
Storage Temperature
215C
235C
65C to +150C
Operating Ratings
(Notes 1, 2)
Operating Temperature Range
LM81
Specified Temperature Range
LM81
Junction to Ambient Thermal Resistance (
θ
JA
(Note 5))
NS Package Number: MTC24B
Supply Voltage (V
+
)
V
IN
Voltage Range:
+12Vin
+5Vin
+3.3Vin
+2.5Vin
VID0 - VID4, Vccp
All other inputs
T
MIN
≤
T
A
≤
T
MAX
55C
≤
T
A
≤
+125C
T
MIN
≤
T
A
≤
T
MAX
40C
≤
T
A
≤
+125C
95C/W
+2.8V to +3.8V
0.05V to +15V
0.05V to +6.8V
0.05V to +4.6V
0.05V to +3.6V
0.05V to +6.0V
0.05V to (V
+
+ 0.05V)
DC Electrical Characteristics
The following specifications apply for +2.8V
DC
≤
V
+
≤
+3.8V
, R
= 500
, unless otherwise specified.
Boldface limits apply
for T
A
= T
J
= T
MIN
to T
MAX
;
all other limits T
A
= T
J
= 25C. (Note 8)
Symbol
Parameter
Conditions
Typical
(Note 9)
Limits
(Note 10)
Units
(Limits)
POWER SUPPLY CHARACTERISTICS
I
+
Supply Current
TEMPERATURE-TO-DIGITAL CONVERTER CHARACTERISTICS
Error
Resolution
Interface Inactive
400
900
μA (max)
40C
≤
T
A
≤
+125C
±
3
0.5
C (max)
C (min)
C (min)
9-bit mode
12-bit mode
0.0625
LM81 ANALOG-TO-DIGITAL CONVERTER CHARACTERISTICS
Resolution
TUE
Total Unadjusted Error
8
bits
+2.5Vin,
+3.3Vin, +5Vin
Vccp1, Vccp2
(Notes 11, 12)
+2
+0.8
+2.4
0
+3.1
+1.2
±
1
% (max)
% (min)
% (max)
% (min)
% (max)
% (min)
LSB (max)
%/V
sec
sec (max)
sec (max)
(Note 11)
+12Vin
(Notes 11, 12)
DNL
PSS
t
C
Differential Non-Linearity
Power Supply Sensitivity
Total Monitoring Cycle Time
±
0.4
0.4
(Note 13)
9-bit Temp Resolution
12-bit Temp Resolution
0.82
1.2
ADC INPUT CHARACTERISTICS
Input Resistance (All analog inputs except
Vccp1 and Vccp2)
Vccp1 and Vccp2 DC Input Current
115
90
k
(min)
±
1
μA
www.national.com
4
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