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参数资料
| 型号： | LM86BIMQX |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 模拟信号调理 |
| 英文描述： | SPECIALTY ANALOG CIRCUIT, PDSO24 |
| 封装： | QSOP-24 |
| 文件页数： | 2/26页 |
| 文件大小： | 261K |
| 代理商： | LM86BIMQX |
Functional Description (Continued)
Register
Address
Read/
Write
Register
Name
Bit 7
(MSB)
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
(LSB)
Default
Value
Lock?
6Fh
R/W
XOR Test Tree Enable
RES
XEN
00h
U
74h
R/W
Tach Monitor Mode
RES
RES T3/4-1 T3/4-0
T2-1
T2-0
T1-1
T1-0
00h
75h
R/W
Fan Spin-up Mode
RES
PWM3
SU
PWM2
SU
PWM1
SU
7h
U
Note: Reserved bits will always return 0 when read.
4.1 Register 20-24h: Voltage Reading
Register
Address
Read/
Write
Register
Name
Bit 7
(MSB)
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
(LSB)
Default
Value
20h
R
2.5V
7
6543210
N/A
21h
R
V
CCP
7
6543210
N/A
22h
R
3.3V
7
6543210
N/A
23h
R
5V
7
6543210
N/A
24h
R
12V
7
6543210
N/A
The Register Names difine the typical input voltage at which the reading is 34 full scale or C0h.
The Voltage Reading registers are updated automatically by the LM85 at a minimum frequency of 4 Hz. These registers are read
only — a write to these registers has no effect.
4.2 Register 25-27h: Temperature Reading
Register
Address
Read/
Write
Register
Name
Bit 7
(MSB)
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
(LSB)
Default
Value
25h
R
Processor (Zone1) Temp
7
6543210
N/A
26h
R
Internal (Zone2) Temp
7
6543210
N/A
27h
R
Remote (Zone3) Temp
7
6543210
N/A
The Temperature Reading registers reflect the current temperatures of the internal and remote diodes. Processor (Zone1) Temp
register reports the temperature measured by the thermal diode connected to the Remote1 and Remote1+ pins, Remote
(Zone3) Temp register reports the temperature measured by the thermal diode connected to the the Remote2 and Remote2+
pins, and the Internal (Zone2) Temp register reports the temperature measured by the internal (junction) temperature sensor.
Temperatures are represented as 8 bit, 2’s complement, signed numbers, in Celsius, as shown below in Table 1. The Temperature
Reading register will return a value of 80h if the remote diode pins are not used by the board designer or are not functioning
properly. This reading will cause the zone limit bit(s) (bits 6 and 4) in the Interrupt Status Register (41h) and the remote diode fault
status bit(s) (bit 6 or 7) in the Interrupt Status Register 2 (42h) to be set. The Temperature Reading registers are updated
automatically by the LM85 at a minimum frequency of 4 Hz. These registers are read only — a write to these registers has no
effect.
TABLE 1. Temperature vs Register Reading
Temperature
Reading (Dec)
Reading (Hex)
127C
127
81h
.
50C
50
CEh
.
0C
0
00h
.
127C
127
7Fh
LM85
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| LM85BIMQ/NOPB | SPECIALTY ANALOG CIRCUIT, PDSO24 |
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| LM9140BYZ-4.1X | 1-OUTPUT TWO TERM VOLTAGE REFERENCE, 4.096 V, PBCY3 |
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