參數(shù)資料
型號： INTEL486 SX
廠商： Intel Corp.
英文描述： Emedded Ultra-Low Power INTEL486 SX Processor(嵌入式超低能量處理器)
中文描述： Emedded超低功耗英特爾486山西處理器（嵌入式超低能量處理器）
文件頁數(shù)： 3/38頁
文件大?。?/td> 346K
代理商： INTEL486 SX
Contents
iii
Embedded Ultra-Low Power
Intel486
SX Processor
1.0 INTRODUCTION ........................................................................................................................................1
1.1 Features .............................................................................................................................................1
1.2 Family Members .................................................................................................................................2
2.0 HOW TO USE THIS DOCUMENT .............................................................................................................3
3.0 PIN DESCRIPTIONS .................................................................................................................................3
3.1 Pin Assignments .................................................................................................................................3
3.2 Pin Quick Reference ...........................................................................................................................7
4.0 ARCHITECTURAL AND FUNCTIONAL OVERVIEW .............................................................................15
4.1 Separate Supply Voltages ................................................................................................................15
4.2 Fast Clock Restart ............................................................................................................................17
4.3 Level-Keeper Circuits .......................................................................................................................18
4.4 Low-Power Features ........................................................................................................................19
4.4.1 Auto Clock Freeze .................................................................................................................19
4.5 CPUID Instruction .............................................................................................................................19
4.5.1 Operation of the CPUID Instruction .......................................................................................19
4.6 Identification After Reset ..................................................................................................................20
4.7 Boundary Scan (JTAG) ....................................................................................................................21
4.7.1 Device Identification ...............................................................................................................21
4.7.2 Boundary Scan Register Bits and Bit Order ...........................................................................21
5.0 ELECTRICAL SPECIFICATIONS ...........................................................................................................22
5.1 Maximum Ratings .............................................................................................................................22
5.2 DC Specifications .............................................................................................................................22
5.3 AC Specifications .............................................................................................................................25
5.4 Capacitive Derating Curves ..............................................................................................................32
6.0 MECHANICAL DATA ..............................................................................................................................33
6.1 Package Dimensions ........................................................................................................................33
6.2 Package Thermal Specifications ......................................................................................................34
FIGURES
Figure 1.
Figure 2.
Figure 3.
Figure 4.
Figure 5.
Figure 6.
Figure 7.
Figure 8.
Figure 9.
Embedded Ultra-Low Power Intel486 SX Processor Block Diagram ...................................... i
Package Diagram for 176-Lead TQFP Package Embedded ULP Intel486 SX Processor ....4
Example of Supply Voltage Power Sequence .........................................................................16
Stop Clock State Diagram with Typical Power Consumption Values ......................................17
CLK Waveform ........................................................................................................................28
Input Setup and Hold Timing ...................................................................................................28
Input Setup and Hold Timing ...................................................................................................29
Output Valid Delay Timing .......................................................................................................29
Maximum Float Delay Timing ..................................................................................................30
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