EN80C186EA25 查看數據表（PDF） - Intel

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EN80C186EA25

16-Bit High-Integration Embedded Processors

Intel 

Contents

Contents

1.0 Introduction....................................................................................................................................7

2.0 Intel® 80C186EA Core Architecture............................................................................................. 9

2.1 Bus Interface Unit .................................................................................................................9

2.2 Clock Generator.................................................................................................................... 9

3.0 Intel® 80C186EA Peripheral Architecture ................................................................................. 11

3.1 Interrupt Control Unit .......................................................................................................... 11

3.2 Timer/Counter Unit ............................................................................................................. 11

3.3 DMA Control Unit ................................................................................................................ 14

3.4 Chip-Select Unit .................................................................................................................. 14

3.5 Refresh Control Unit ........................................................................................................... 14

3.6 Power Management............................................................................................................ 14

3.7 80C187 Interface (80C186EA Only) ................................................................................... 15

3.8 ONCE Test Mode ...............................................................................................................15

4.0 Intel® 80C186XL and Intel® 80C186EA Differences................................................................. 16

4.1 Pinout Compatibility ............................................................................................................ 16

4.2 Operating Modes ................................................................................................................ 16

4.3 TTL vs. CMOS Inputs ......................................................................................................... 16

4.4 Timing Specifications .......................................................................................................... 16

4.5 Package Information ........................................................................................................... 17

4.6 Pin Descriptions .................................................................................................................. 17

5.0 Intel® 80C186EA Pinout.............................................................................................................. 22

6.0 Package Thermal Specifications................................................................................................ 24

7.0 Electrical Specification ...............................................................................................................25

7.1 Absolute Maximum Ratings*............................................................................................... 25

7.2 Recommended Connections .............................................................................................. 25

8.0 DC Specifications ........................................................................................................................ 26

8.1 ICC Versus Frequency and Voltage ................................................................................... 28

8.2 PDTMR Pin Delay Calculation ............................................................................................29

Datasheet

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