- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄371386 > 24267A Dual, Temperature-Controlled Resistors with Internally Calibrated Monitors PDF資料下載
參數(shù)資料
| 型號： | 24267A |
| 英文描述： | Dual, Temperature-Controlled Resistors with Internally Calibrated Monitors |
| 中文描述： | “AMD的K6E家庭”，“嵌入”，“處理器的AMD PowerNow??？技術(shù)平臺設(shè)計指南應(yīng)用指南“ |
| 文件頁數(shù)： | 18/50頁 |
| 文件大小： | 957K |
| 代理商： | 24267A |
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頁第17頁當(dāng)前第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頁第45頁第46頁第47頁第48頁第49頁第50頁
12
Dynamic Core Frequency and Core Voltage Control
AMD PowerNow! Technology Platform Design Guide for Embedded Processors
24267A/0—December 2000
Preliminary Information
Voltage Identification (VID) Outputs
AMD-K6-2E+ and AMD-K6-IIIE+ low-power processors enabled
with AMD PowerNow! technology feature Voltage ID (VID)
outputs to support dynamic control of the core voltage. These
outputs should serve as inputs to a DC/DC regulator that
supplies the processor core voltage. Based on its VID[4:0]
inputs, the regulator outputs a corresponding voltage. (See
“Hardware Implementation” on page 18 for more detailed
information on using the VID outputs in embedded systems.)
For regulators that do not support VID inputs, the processor’s
VID[4:0] outputs must be used to manipulate the regulator’s
feedback voltage to vary the regulator output voltage.
It is not necessary to drive all of the processor VID[4:0] outputs
to the voltage select inputs of the DC/DC regulator. Any voltage
select inputs of the DC/DC regulator that are not driven by the
processor VID[4:0] outputs should be tied to ground.
All VID[4:0] Output
Pins Used
System implementations that incorporate all processor VID
outputs typically support a voltage range of 0.925 V to 2.0 V.
Table 6 on page 13 lists VID[4:0] codes that are typical for
DC/DC regulators.
Subset of VID[4:0]
Outputs Used
System implementations that use a subset of the processor VID
outputs will require external logic to translate the processor
VID pins into a full five-bit DC/DC regulator input code.
One solution that is recommended for a maximum BF[2:0] boot
strap option (see page 9) requires that regulator D[4] and D[0]
inputs be connected to GND while inputs D[3:1] are connected
to the processor VID[4], VID[2], and VID[0] outputs,
respectively, through external logic.
For a 2.1-V core voltage implementation, the available core
voltage is thereby limited to a range of 1.36 V to 2.1 V in
approximately 100-mV increments, but the rework and external
logic cost is minimal. Table 7 on page 13 shows the voltage
translation using the Max1711 DC/DC regulator.
Unused VID[4:0]
Outputs
System designs that do not use the dynamic core voltage control
feature provided in AMD PowerNow! technology should simply
leave the processor VID[4:0] outputs as no-connects (NC) on the
motherboard.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 2429 | FLUID DETECTOR |
| 242NQ030 | SCHOTTKY RECTIFIER |
| 242NQ030R | 30V 240A Schottky DISCR. (R) Diode in a D-67 HALF-Pak package |
| 24304 | SCHRAUBENSICHERUNG 243 10ML |
| 243101 | USB CABLE A TO B 1.0M |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 24268 | 制造商:Schneider Electric 功能描述:C60N 2P 10A CURVA C |
| 2426GCA40CP | 制造商:LG Corporation 功能描述:CPT SET |
| 2426GF239AR | 制造商:LG Corporation 功能描述:CPT,ITC |
| 2427 | 功能描述:螺絲和緊固件 6-32 .375 SHLDR SCW RoHS:否 制造商:Unspecified 產(chǎn)品: 類型:Washer 螺紋大小: 長度: 材料:Steel 電鍍:Nickel 螺絲頭: 螺絲類型: |
| 24270 | 制造商:Schneider Electric 功能描述:C60N 2P 16A CURVA C |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。