- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄370028 > PXA270 (Intel Corp.) Electrical, Mechanical, and Thermal Specification PDF資料下載
參數(shù)資料
| 型號： | PXA270 |
| 廠商： | Intel Corp. |
| 英文描述： | Electrical, Mechanical, and Thermal Specification |
| 中文描述： | 電氣，機械和熱規(guī)格 |
| 文件頁數(shù)： | 66/126頁 |
| 文件大?。?/td> | 1563K |
| 代理商： | PXA270 |
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頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁當前第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁第101頁第102頁第103頁第104頁第105頁第106頁第107頁第108頁第109頁第110頁第111頁第112頁第113頁第114頁第115頁第116頁第117頁第118頁第119頁第120頁第121頁第122頁第123頁第124頁第125頁第126頁
6-2
Electrical, Mechanical, and Thermal Specification
Intel PXA270 Processor
AC Timing Specifications
6.2
Reset and Power Manager Timing Specifications
The processor asserts the nRESET_OUT pin in one of several different modes:
Power-on reset
Hardware reset
Watchdog reset
GPIO reset
Sleep mode
Deep-sleep mode
The following sections give the timing and specifications for entry into and exit from these modes.
6.2.1
Power-On Timing Specifications
Power-on reset begins when a power supply is detected on the backup battery pin, VCC_BATT,
after the processor has been powered off. A power-on reset is equivalent to a hardware reset, in that
all units are reset to the same known state as with a hardware reset. A power-on reset is a complete
and total reset that occurs only at initial power on.
The external power-supply system must enable the power supplies for the processor in a specific
sequence to ensure proper operation.
Figure 6-2
shows the timing diagram for a power-on reset
sequence.
Table 6-2
details the timing.
The sequence for power-on reset is as follows:
1. VCC_BATT is established, then nRESET should be de-asserted to initiate power-on reset.
2. PWR_OUT is asserted. The processor asserts nRESET_OUT.
3. The external power-control subsystem de-asserts nBATT_FAULT to signal that the main
battery is connected and not discharged.
4. The processor asserts the SYS_EN signal to enable the power supplies VCC_IO, VCC_MEM,
VCC_BB, VCC_USB, and VCC_LCD. VCC_USIM can be established at this time also but
can be independently controlled through its own control signals. VCC_IO must be established
first. The other supplies can turn on in any order, but they must all be established within
125 milliseconds of the assertion of SYS_EN.
Figure 6-1. AC Test Load
I/O
50pf
ΖΟ = 50
相關PDF資料 |
PDF描述 |
|---|---|
| PXAC37 | XA 16-bit microcontroller family 32K/1024 OTP CAN transport layer controller 1 UART, 1 SPI Port, CAN 2.0B, 32 CAN ID Filters, transport layer co-proce |
| PXB16050U | NPN microwave power transistor |
| PY08-02 | INDUSTRIERELAIS FASSUNG PCB |
| PY08-02186697 | SOCKET PCB |
| PY14 | INDUSTRIERELAIS CHASSIS MONTAGESOCKEL |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| PXA300 | 制造商:Marvell 功能描述: |
| PXA310 | 制造商:MARVELL 制造商全稱:MARVELL 功能描述:Rich Multimedia with Scalable Performance up to 624 MHz for Cost-Effective and Power-Effi cient Secure 3.5G Smartphones |
| PXA320 | 制造商:MARVELL 制造商全稱:MARVELL 功能描述:Cost-Effective, Scalable Performance up to 806 MHz for Power-Efficient, High-End Multimedia Handsets, Embedded Solutions, and Enterprise-Class Devices |
| PXA6.3VC101MF60TP | 功能描述:鋁有機聚合物電容器 100UF 6.3V SMT CAN RoHS:否 制造商:Panasonic Electronic Components 電容:470 uF 容差:20 % 電壓額定值:2.5 V ESR:4.5 mOhms 工作溫度范圍:- 40 C to + 105 C 端接類型:SMD/SMT 外殼直徑: 外殼長度:7.3 mm 外殼寬度:4.3 mm 外殼高度:1.9 mm 封裝:Reel |
| PXA6.3VC471MH12TP | 制造商:United Chemi-Con Inc 功能描述:Cap Aluminum 470uF 6.3V 20% (8 X 12mm) SMD 0.012 Ohm 4770mA 2000 hr 105°C T/R |
發(fā)布緊急采購，3分鐘左右您將得到回復。