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參數(shù)資料
| 型號(hào)： | W83781 |
| 廠商： | WINBOND ELECTRONICS CORP |
| 英文描述： | MONITORING IC |
| 中文描述： | 監(jiān)測(cè)集成電路 |
| 文件頁(yè)數(shù)： | 12/53頁(yè) |
| 文件大?。?/td> | 725K |
| 代理商： | W83781 |
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W83781D
PRELIMINARY
- 7 -
Publication Release Date : Nov. 1997
Revision 0.60
7. FUNCTIONAL DESCRIPTION
7.1 General Description
The W83781D provides 5 analog positive inputs, 2 analog negative input, 3 fan speed monitors or fan
ON/OFF control, 3 thermistor voltage inputs, case open detection and beep function output when the
monitor value exceed the set limit value. When start the monitor function on the chip, the watch dog
machine monitor every function and store the value to registers. If the monitor value exceeds the limit
value, the interrupt status will be set to 1.
The W83781D provides two interface for microprocessor to read/write internal registers. The first
interface use ISA Bus to access which the ports of low byte (bit2~bit0) are defined in the port 5h and
6h. The high byte of these ports is decoded by Chip Select (CS#), the general decoded address is set
to port 295h and port 296h. These two ports are described as following:
Port 295h: W83781D Index register port.
Port 296h: Data port.
The register structure is showed as the diagram next page.
The second interface use Serial Bus. In the W83781D has three serial bus address. That is, the first
address defined at CR48 can read/write all registers excluding Bank 1 and Bank 2 temperature 2/3
registers, the second address defined at CR4A.bit2-0 only read/write temperature sensor 2 registers,
and the third address defined at CR4A.bit6-4 only can access (read/write) temperature sensor 3
registers.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| W83783 | CABLE ASSEMBLY; BNC MALE TO BNC FEMALE BULKHEAD; 50 OHM, RG188-DS COAX, DOUBLE SHIELDED; 48" CABLE LENGTH; ; *USES STANDARD 50 OHM INTERFACE CONNECTORS* |
| W83783S | MONITORING IC |
| W83787IF | WINBOND I/O WITH SERIAL-INFRARED SUPPORT |
| W83787F | WINBOND I/O WITH SERIAL-INFRARED SUPPORT |
| W83791D | W83791D Winbond H/W Monitoring IC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| W83781D | 制造商:Winbond Electronics Corp 功能描述:SPECIALTY ANALOG CIRCUIT, PQFP48 |
| W83781G | 功能描述:IC MONITOR H/W 48-LQFP RoHS:是 類別:集成電路 (IC) >> PMIC - 熱管理 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 功能:溫度監(jiān)控系統(tǒng)（傳感器） 傳感器類型:內(nèi)部和外部 感應(yīng)溫度:-40°C ~ 125°C，外部傳感器 精確度:±2.5°C 本地（最大值），±5°C 遠(yuǎn)程（最大值） 拓?fù)?ADC，比較器，寄存器庫(kù) 輸出類型:2 線 SMBus? 輸出警報(bào):無(wú) 輸出風(fēng)扇:無(wú) 電源電壓:2.7 V ~ 5.5 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-8 供應(yīng)商設(shè)備封裝:SOT-23-8 包裝:Digi-Reel® 其它名稱:296-22675-6 |
| W83782 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:MONITORING IC |
| W83782D | 制造商:WINBOND 制造商全稱:Winbond 功能描述:H/W MONITORING IC |
| W83782D_05 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:H/W MONITORING IC |
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