- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄362306 > AMD-K5-PR90ABQ 32-Bit Microprocessor PDF資料下載
參數(shù)資料
| 型號： | AMD-K5-PR90ABQ |
| 元件分類： | 32位微控制器 |
| 英文描述： | 32-Bit Microprocessor |
| 中文描述： | 32位微處理器 |
| 文件頁數(shù)： | 17/44頁 |
| 文件大?。?/td> | 2886K |
| 代理商： | AMD-K5-PR90ABQ |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁第16頁當(dāng)前第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁
Heat Sinks
9
20092B/0—Sep1996
AMD-K5 Processor Thermal Considerations
Heat Sink/Fan
Modules (Pin Fin Heat
Sinks with Attached
Fan)
In this type of module the following items are supplied: heat
sink, DC brushless fan, and fan cable with four-pin power con-
nector. These modules may be purchased in a retail store with-
out any instructions or specifications. It is a gamble for
personal computer system designers to select these modules by
appearance and cost only. The least expensive modules gener-
ally come with sleeve bearings in the fan. Such fans are not
noted for their reliability and durability, and are, therefore,
not
recommended. Better heat sink/fan modules have ball
bearing fan motors and the following specifications:
Sleeve bearing fans are less expensive but have as little as
1/10 the expected fan life as the more expensive sealed ball
bearing fan (cost increase for a fan with sealed ball bearing is
less than a $1.00). It is strongly recommended that sealed ball
bearing fan motors be used for heat sink/fan modules. A fan
failure is defined as a fan decreasing to less than 70 percent of
its initial rotational speed. Evox Rifa has a technical note on
Table 1. Heat Sink/Fan Module Specifications
Electrical Fan Specification
1) Type of DC motor
2) Rated motor power consumption Application dependent (e.g., approximately 1 watt)
3) Fan motor should have
With cable and standard 4-pin power supply connector
4) Optional alarm available if fan
fails
Recommended Specification for AMD-K5 Processors
Brushless DC motor, power supply voltage: +12 V or +5 V
When fan speed drops to less than 70% of rated speed
Mechanical Specification
1) Heat sink type
2) Rated airflow
3) Noise
Pin fin, extruded, or die cast aluminum
Application dependent (e.g., 9 cubic feet per minute)
Application dependent (e.g., 27 dB)
Base plate approximately 2-inch square, and height dependent on application.
See Figure 3 for more information.
Heat sink clip
Clearance height above fan air intake (e.g., 0.5 in to 1 in minimum)
Sealed ball bearing
4) Size x, y, h
5) Attachment means
6) Head clearance fan
7) Fan bearings
Thermal Performance
Thermal resistance
Application dependent: thermal specification of the personal computer operat-
ing temperatures, power specification of AMD-K5 processor, airflow and flow
direction of the processor
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| AMD-K6-2 | AMD-K6-2 - AMD-K6-2 Processor Data Sheet |
| AMD-K6-2E | AMD-K6-2E - AMD-K6-2E Embedded Processor Data Sheet |
| AMD-K6-III | AMD-K6-III - AMD-K6-III Processor Data Sheet |
| AMD-K6-III-P | Mobile AMD-K6?-III-P Processor Data Sheet |
| AMD-K7500MTR51BC | MICROPROCESSOR|32-BIT|CMOS|CARD|PLASTIC |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| AMD-K6 | 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:AMD-K6 Processor |
| AMD-K6/233ACZ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:32-Bit Microprocessor |
| AMD-K6/233BCZ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:32-Bit Microprocessor |
| AMD-K6/266ACZ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:32-Bit Microprocessor |
| AMD-K6/266BCZ | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:32-Bit Microprocessor |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。