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參數(shù)資料
| 型號(hào)： | LM96000 |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | Hardware Monitor with Integrated Fan Control |
| 中文描述： | 硬件監(jiān)控集成風(fēng)扇控制 |
| 文件頁數(shù)： | 26/28頁 |
| 文件大?。?/td> | 695K |
| 代理商： | LM96000 |
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Functional Description
(Continued)
Mode 2:
This mode is optimized for accurate RPM readings and activates circuitry that extends the lower side of the RPM
reading as shown in the following table.
Mode 3:
This mode minimizes the effect on the RPM setting and activates circuitry that extends the lower side of the RPM
reading as shown in the following table.
PWM Frequency
10.01
15.02
23.14
30.04
38.16
47.06
61.38
94.12
Mode 0 and 1 Minimum RPM
841
1262
1944
2523
3205
3953
5156
7906
Mode 2 and 3 Minimum RPM
210
315
420
420
420
420
420
420
This register is not effected when the Ready/Lock/Start/Override register Lock bit is set. After power up the default value is used
whenever the Ready/Lock/Start/Override register Start bit is cleared even though modifications to this register are possible.
4.22.2 Register 75h: Fan Spin-up Mode
Register
Address
75h
Read/
Write
R/W
Register
Name
Bit 7
(MSB)
RES
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
(LSB)
PWM1 SU
Default
Value
7h
Lock
Fan Spin-up Mode
RES
RES
RES
RES
PWM3 SU
PWM2 SU
U
The PWM SU bit configures the PWM spin-up mode. If PWM SU is cleared the spin-up time will terminate after time programmed
by the Fan Configuration register has elapsed. When set to a 1, the spin-up time will terminate early if the TACH reading exceeds
the Tach Minimum value or after the time programmed by the Fan Configuration register has elapsed, whichever occurs first.
This register becomes Read Only when the Ready/Lock/Start/Override register Lock bit is set.Any further attempts to write to this
register shall have no effect. After power up the default value is used whenever the Ready/Lock/Start/Override register Start bit
is cleared even though modifications to this register are possible.
4.23 Undefined Registers
Any reads to undefined registers will always return 00h. Writes to undefined registers will have no effect and will not return an
error.
5.0 XOR TEST MODE
The LM96000 incorporates a XOR tree test mode. When the test mode is enabled by setting the “XEN” bit high in the Test
Register at address 6Fh via the SMBus, the part will enter XOR test mode.
Since the test mode an XOR tree, the order of the signals in the tree is not important. SMBDAT and SMBCLK are not to be
included in the test tree.
20084608
L
www.national.com
26
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| LM96000CIMT/NOPB | 制造商:Texas Instruments 功能描述:Temperature Sensor IC |
| LM96000CIMTX | 功能描述:板上安裝溫度傳感器 RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor |
| LM96000CIMTX/NOPB | 功能描述:板上安裝溫度傳感器 RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor |
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