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AM186ED bảng dữ liệu(PDF) 6 Page - Advanced Micro Devices |
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AM186ED bảng dữ liệu(HTML) 6 Page - Advanced Micro Devices |
6 / 88 page 6 Am186ED/EDLV Microcontrollers PRELI M INARY D RA F T CLOCK AND POWER MANAGEMENT .................................................................................... 40 Phase-Locked Loop ....................................................................................................... 40 Crystal-Driven Clock Source .......................................................................................... 40 External Source Clock ................................................................................................... 41 System Clocks ............................................................................................................... 41 Power-Save Operation ................................................................................................... 41 Initialization and Processor Reset .................................................................................. 41 Reset Configuration Register ......................................................................................... 41 CHIP-SELECT UNIT .................................................................................................................. 42 Chip-Select Timing ......................................................................................................... 42 Ready and Wait-State Programming ............................................................................. 42 Chip-Select Overlap ....................................................................................................... 42 Upper Memory Chip Select ............................................................................................ 43 Low Memory Chip Select ............................................................................................... 43 Midrange Memory Chip Selects ..................................................................................... 43 Peripheral Chip Selects ................................................................................................. 43 REFRESH CONTROL UNIT ...................................................................................................... 44 INTERRUPT CONTROL UNIT .................................................................................................. 44 TIMER CONTROL UNIT ............................................................................................................ 45 Watchdog Timer ............................................................................................................. 45 PULSE WIDTH DEMODULATION ............................................................................................ 45 DIRECT MEMORY ACCESS .................................................................................................... 46 DMA Operation .............................................................................................................. 46 DMA Channel Control Registers .................................................................................... 47 DMA Priority ................................................................................................................... 47 ASYNCHRONOUS SERIAL PORTS ......................................................................................... 47 DMA Transfers through the Serial Port .......................................................................... 48 PROGRAMMABLE I/O (PIO) PINS ........................................................................................... 48 ABSOLUTE MAXIMUM RATINGS ............................................................................................ 49 OPERATING RANGES ............................................................................................................. 49 DC CHARACTERISTICS OVER COMMERCIAL AND INDUSTRIAL OPERATING RANGES . 49 CAPACITANCE ......................................................................................................................... 50 POWER SUPPLY CURRENT ................................................................................................... 50 THERMAL CHARACTERISTICS ............................................................................................... 51 TQFP Package .............................................................................................................. 51 Typical Ambient Temperatures ....................................................................................... 52 COMMERCIAL AND INDUSTRIAL SWITCHING CHARACTERISTICS AND WAVEFORMS .. 57 Key to Switching Waveforms ......................................................................................... 57 Alphabetical Key to Switching Parameter Symbols ....................................................... 58 Numerical Key to Switching Parameter Symbols ........................................................... 61 SWITCHING CHARACTERISTICS OVER COMMERCIAL AND INDUSTRIAL OPERATING RANGES ............................................................................................... 64 Read Cycle (20 MHz and 25 MHz) ................................................................................ 64 SWITCHING CHARACTERISTICS OVER COMMERCIAL OPERATING RANGES ................. 65 Read Cycle (33 MHz and 40 MHz) ................................................................................ 65 READ CYCLE WAVEFORMS ................................................................................................... 66 SWITCHING CHARACTERISTICS OVER COMMERCIAL AND INDUSTRIAL OPERATING RANGES ............................................................................................... 67 Write Cycle (20 MHz and 25 MHz) ................................................................................ 67 SWITCHING CHARACTERISTICS OVER COMMERCIAL OPERATING RANGES ................. 68 Write Cycle (33 MHz and 40 MHz) ................................................................................ 68 WRITE CYCLE WAVEFORMS .................................................................................................. 69 |
Số phần tương tự - AM186ED |
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Mô tả tương tự - AM186ED |
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